Bash Script checking time,

Hi all,
following my other topic to remove the shutdown/reboot/logout power, I now need to make a script to execute the given command at specific time.
What I am trying to do (see script below) is to get the time into a variable, then check if the time is more than the time given or not, I start working on script but the result failed.
#!/bin/bash
time=`date +%k%M` ;
if [ "1830"<"$time" ]
then
gsettings set org.gnome.desktop.lockdown disable-log-out true
elif [ "2220">"$time" ]
then
gsettings set org.gnome.desktop.lockdown disable-log-out fasle
fi
So basically the script will disable the shutdown/reboot/logout user power if after 1830 and re-enable it after 2220, obviously I will make it a loop after that - might be good to get to a point where the script check if the time is between 2220 and 1830 to enable it, or if it's between 1830 to 2220 to disable it.
Many thanks for your time and future assistance,
Regards,

sweetthdevil wrote:
Hi all,
following my other topic to remove the shutdown/reboot/logout power, I now need to make a script to execute the given command at specific time.
What I am trying to do (see script below) is to get the time into a variable, then check if the time is more than the time given or not, I start working on script but the result failed.
#!/bin/bash
time=`date +%k%M` ;
if [ "1830"<"$time" ]
then
gsettings set org.gnome.desktop.lockdown disable-log-out true
elif [ "2220">"$time" ]
then
gsettings set org.gnome.desktop.lockdown disable-log-out fasle
fi
So basically the script will disable the shutdown/reboot/logout user power if after 1830 and re-enable it after 2220, obviously I will make it a loop after that - might be good to get to a point where the script check if the time is between 2220 and 1830 to enable it, or if it's between 1830 to 2220 to disable it.
Many thanks for your time and future assistance,
Regards,
The '<' and '>' operators inside [ ] are lexcographical, not arithmetic. 830 will be greater than 1030. Since you've specified #!/bin/bash, please use Bash's (( )) syntax, where '<' and '>' will actually perform numerical comparisons.
http://mywiki.wooledge.org/BashGuide/Te … nditionals
Last edited by falconindy (2011-06-03 19:12:41)

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then
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echo "removeing directory usbbiosfiles..."
echo ""
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then
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rm -r ~/usbbiosfiles
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fi
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if [ "$check10" = "yes" ]
then
echo "Mounting FreeDOS on the fdoem144 directory... OK"
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fi
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if [ "$check11" = "yes" ]
then
echo "Copying FreeDOS files to $MOUNTX... OK"
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if [ "$check12" = "yes" ]
then
echo "Copying BIOS.ROM files to $MOUNTX... OK"
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echo "Could not copy BIOS.ROM files to $MOUNTX"
echo "look above \for \info"
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then
echo "Runing the syncing command... OK"
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echo "Fix the problem and run this scrip agin"
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echo ""
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if [ "$check14" = "yes" ]
then
echo "Unmounting of FreeDOS... OK"
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echo "Fix the problem and run this script agin"
rm -r ~/usbbiosfiles
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while [ "$verify" != y ]
do
printf "Do you see any errors... yes or no?"
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read verify
done
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then
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echo "Look above for errors or problems reported and fix the problem"
echo ""
echo "removeing directory usbbiosfiles..."
echo ""
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echo "Fix the problem and run this script agin"
rm -r ~/usbbiosfiles
exit
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echo "Success"
echo "I did a lot of error checking too and didnt find anything"
echo ""
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printf "Then hit the Enter to continue"
read WAIT
echo ""
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fi
echo ""
echo "End of script"
Last edited by hunterthomson (2008-08-10 11:17:47)

Personally..... (this is just how I would have written it - if it works, then it's good enough for me though )
I would change this whole block:
verify="n"
while [ "$verify" != y ]
do
printf "Do you have mbr installed... yes or no?"
read AN1
echo ""
printf "You answered... $AN1 I have installed mbr. Is this correct... y or n?"
read verify
done
echo ""
if [ "$AN1" == "no" ]
then
echo "Install mbr now. Then run this script agin"
exit
else
echo "contunuing script"
fi
To this much shorter code:
MBR='/usr/bin/install-mbr' # Or where ever you expect it to be
if [ ! -x $MBR ] ; then
echo "mbr doesn't appear to be installed."
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I wouldn't have used the checkXX variables for each stage:
mkdir ~/usbbiosfiles
if [ $? != 0 ] ; then
#failed
echo "Could not \make directory usbbiosfiles"
echo "look above \for \info"
echo "Fix the problem and run this scrip agin"
exit 1
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echo "Made directory usbbiosfiles... OK"
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while [ "$verify" != "y" && "$verify" != "n" ]; do
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if [ $verify != 'y' ] ; then
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fi
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# Binaries
TAR='/bin/tar'
CP='/bin/cp'
CHMOD='/bin/chmod'
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$TAR cvzf /tmp/tarfile.tar.gz /etc/*.conf
$CHMOD 400 /etc/*.conf
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input_queue = Queue()
output_queue = Queue()
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File "/usr/local/Cellar/python3/3.3.0/Frameworks/Python.framework/Versions/3.3/lib/python3.3/urllib/request.py", line 1252, in do_open
h.request(req.get_method(), req.selector, req.data, headers)
File "/usr/local/Cellar/python3/3.3.0/Frameworks/Python.framework/Versions/3.3/lib/python3.3/http/client.py", line 1049, in request
self._send_request(method, url, body, headers)
File "/usr/local/Cellar/python3/3.3.0/Frameworks/Python.framework/Versions/3.3/lib/python3.3/http/client.py", line 1077, in _send_request
self.putrequest(method, url, **skips)
File "/usr/local/Cellar/python3/3.3.0/Frameworks/Python.framework/Versions/3.3/lib/python3.3/http/client.py", line 941, in putrequest
self._output(request.encode('ascii'))
UnicodeEncodeError: 'ascii' codec can't encode characters in position 5-8: ordinal not in range(128)
I'm not too familiar with how character encoding works so I'm not sure where to start. What would be a quick and dirty way (if one exists) to get URLs like this to play nicely with python's urlopen?

Have a bash script run every time an application is opened.

Hi,
On my Arch box I would like to have a bash script run every time a certain application is opened from the menu. I would prefer a delay of a 5 - 10 seconds after the program opens if that is possible. Could someone please let me know if and how I can achieve this?

Problem is, OP wants the "meat" of his script to run after the program, which would mean putting it after the exec. But AFAIK, anything after the exec will be ignored. You could call another script to run in the background before the exec, but that seems hackish.
Last edited by alphaniner (2013-04-10 14:57:01)

Udev bash script for autodialing usb huawei modem

Hey
I've got an interesting one here.
I have scripted up a bash script to be triggered by a udev add event for my usb modem. As far as I can tell the udev event is firing correctly according to udevadm.
ACTION=="add", ATTRS{idVendor}=="12d1", ATTRS{idProduct}=="1003", RUN+="/bin/sh /usr/local/bin/huawei_key.sh add"
ACTION=="remove", ATTRS{idVendor}=="12d1", ATTRS{idProduct}=="1003", RUN+="/bin/sh /usr/local/bin/huawei_key.sh remove"
And heres the code from the script
#!/bin/bash
#returns
# 0 Successfully ran script for case
# 1 wvdial process already running
# 2 wvdial was not terminated
# 3 script was not ran with ADD or REMOVE events
function getpid #get process id of running program
pidof wvdial
if [ "$?" = 0 ];
then
pid=`pidof wvdial`
running=1
else
running=0
fi
function checkrun #check for a running copy of the program
pidof wvdial
if [ "$?" == "0" ];
then
running=1
else
running=0
fi
function killloop #a set of time kill commands to let the program exit gracefully
#two terms, one int and one kill with suitable gaps
getpid
checkrun
if [ "$running" = "0" ];
then
return
fi
kill $pid
sleep 10
checkrun
if [ "$running" = "0" ];
then
return
fi
kill $pid
sleep 10
checkrun
if [ "$running" = "0" ];
then
return
fi
kill -INT $pid
sleep 5
checkrun
if [ "$running" = "0" ];
then
return
fi
kill -KILL $pid
sleep 5
checkrun
if [ "$running" = "1" ];
then
exit 2 #process fails to die
fi
function getlaststatus
if [ -e "/var/run/huawie" ];
then
last=`cat /var/run/huawie`
else
last=0
fi
if [ "$1" = "add" ];
then
getlaststatus
if [ "$last" = "1" ];
then
exit 1
fi
echo 1 > /var/run/huawie #block future udev events
getpid
if [ "$running" = "1" ];
then
exit 1
fi
modprobe usbserial
sleep 6 #modem init time
wvdial &
exit 0
elif [ "$1" = "remove" ];
then
getlaststatus
if [ "$last" = "2" ];
then
exit 0
fi
echo 2 > /var/run/huawie
killloop
exit 0
else
echo 3 > /var/run/huawie
exit 3
fi
I'd appreciate any ideas, this one has me stumped
Edit:
Forgot to add that when I call the script manually it works like a charm.
Last edited by adamd (2009-08-25 15:04:06)

Hey
I've got an interesting one here.
I have scripted up a bash script to be triggered by a udev add event for my usb modem. As far as I can tell the udev event is firing correctly according to udevadm.
ACTION=="add", ATTRS{idVendor}=="12d1", ATTRS{idProduct}=="1003", RUN+="/bin/sh /usr/local/bin/huawei_key.sh add"
ACTION=="remove", ATTRS{idVendor}=="12d1", ATTRS{idProduct}=="1003", RUN+="/bin/sh /usr/local/bin/huawei_key.sh remove"
And heres the code from the script
#!/bin/bash
#returns
# 0 Successfully ran script for case
# 1 wvdial process already running
# 2 wvdial was not terminated
# 3 script was not ran with ADD or REMOVE events
function getpid #get process id of running program
pidof wvdial
if [ "$?" = 0 ];
then
pid=`pidof wvdial`
running=1
else
running=0
fi
function checkrun #check for a running copy of the program
pidof wvdial
if [ "$?" == "0" ];
then
running=1
else
running=0
fi
function killloop #a set of time kill commands to let the program exit gracefully
#two terms, one int and one kill with suitable gaps
getpid
checkrun
if [ "$running" = "0" ];
then
return
fi
kill $pid
sleep 10
checkrun
if [ "$running" = "0" ];
then
return
fi
kill $pid
sleep 10
checkrun
if [ "$running" = "0" ];
then
return
fi
kill -INT $pid
sleep 5
checkrun
if [ "$running" = "0" ];
then
return
fi
kill -KILL $pid
sleep 5
checkrun
if [ "$running" = "1" ];
then
exit 2 #process fails to die
fi
function getlaststatus
if [ -e "/var/run/huawie" ];
then
last=`cat /var/run/huawie`
else
last=0
fi
if [ "$1" = "add" ];
then
getlaststatus
if [ "$last" = "1" ];
then
exit 1
fi
echo 1 > /var/run/huawie #block future udev events
getpid
if [ "$running" = "1" ];
then
exit 1
fi
modprobe usbserial
sleep 6 #modem init time
wvdial &
exit 0
elif [ "$1" = "remove" ];
then
getlaststatus
if [ "$last" = "2" ];
then
exit 0
fi
echo 2 > /var/run/huawie
killloop
exit 0
else
echo 3 > /var/run/huawie
exit 3
fi
I'd appreciate any ideas, this one has me stumped
Edit:
Forgot to add that when I call the script manually it works like a charm.
Last edited by adamd (2009-08-25 15:04:06)

Solaris sends SIGKILL to bash script?

I have this bash script that just loops forever (until stopped), it outputs data to files and runs various other commands to display information on the terminal. The problem I'm having is that solaris seems to send SIGKILL to this script after it's been running for a period of time. Typically a few hours. As far as I can tell there's doesn't appear to be anything obviously wrong with the script. Why would solaris send a SIGKILL?? I know it's a sigkill from the exit code 137.
Anyone have any suggestions?? I'm running Solaris 8.
Thanks

No idea, it doesn't really make sense.
You could check if there is anything in crontab or similar which kills processes of idle users, but thats a bit of a long-shoot.
Make your script log to a file frequently, so you can figure out when to determine if its always around the same time, and in which part of the script.
If Solaris would send it a kill signal it wouldn't be SIGKILL.
.7/M.

[solved] Segmentation fault with bash script

I have a bash script that checks if it has to do something, if not it sleeps 15 secs and checks again. It works great except that after ~6hrs of just checking and sleeping it seg faults. I upped the stack limit with ulimit -s and it goes ~12hrs before it seg faults. I have a similar script that I have been using for ages that works for 24hrs no problem and I can't pinpoint where the problem is.
The check it does is to see if a file exists, if it's empty and if not, read the first line of a file and do some date comparisons. It doesn't matter if the file is empty or not the seg fault always happens.
Here's the seg fault causing script - it starts at the bottom
#!/bin/bash
# User defines
declare -i DVB_DEVICE_NUM="0"
declare CHANNELS_CONF="${HOME}/Mychannels.conf"
declare SAVE_FOLDER="${HOME}/TV/tele"
declare SCHED_FILE="$HOME/.sched-tv"
declare ZAP_COMMAND="tzap"
declare -i SLEEP=15
# Program defines
declare -i DAY="0"
declare -i START="0"
declare -i FINISH="0"
declare CHAN="0"
declare NAME="0"
declare -i MINUTES="0"
declare -i REC_START="0"
declare -i REC_HOURS="0"
declare -i REC_MINS="0"
declare -i howlong="0"
declare -i PIDOF_AZAP=0
declare -i PIDOF_CAT=0
red='\033[1;31m'
green='\033[1;32m'
yell='\033[1;33m'
cyan='\033[1;36m'
white='\033[1;37m'
reset='\033[0m'
function remove_entry {
if [ "$NAME" == "" ]; then
sed "/$DAY $START $FINISH $CHAN/d" $SCHED_FILE > /tmp/dummy
else
sed "/$DAY $START $FINISH $CHAN $NAME/d" $SCHED_FILE > /tmp/dummy
fi
mv /tmp/dummy $SCHED_FILE
function record_entry {
${ZAP_COMMAND} -a ${DVB_DEVICE_NUM} -f ${DVB_DEVICE_NUM} -d ${DVB_DEVICE_NUM} \
-c $CHANNELS_CONF -r ${CHAN} >/dev/null 2>&1 &
PIDOF_AZAP=$!
if [ "$PIDOF_AZAP" == "" ]; then
printf "$red\tError starting ${ZAP_COMMAND}.\n\tFAILED: $CHAN $START\n"
remove_entry
exit 1
fi
printf "$green\tSET CHANNEL$cyan ${CHAN}\n"
REC_MINS=$((${START}%100))
REC_HOURS=0
MINUTES=0
REC_START=$(($START-$REC_MINS))
while [ $((${REC_START}+${REC_HOURS}+${REC_MINS})) -lt $FINISH ]; do
((REC_MINS++))
((MINUTES++))
if [ ${REC_MINS} -ge 60 ]; then
REC_MINS=0
((REC_HOURS+=100))
fi
done
if [ "$NAME" == "" ]; then
declare FILE_NAME="${SAVE_FOLDER}/TV-`date +%Y%m%d-%H%M`-ch.${CHAN}-${MINUTES}.min.mpg"
else
declare FILE_NAME="${SAVE_FOLDER}/TV-${NAME}-${MINUTES}.min.mpg"
fi
dd if=/dev/dvb/adapter${DVB_DEVICE_NUM}/dvr${DVB_DEVICE_NUM} \
of=${FILE_NAME} conv=noerror &
PIDOF_CAT=$!
if (( ${PIDOF_CAT} == 0 )); then
printf "$red\tError Starting Recording.\n\t/dev/dvb/adapter${DVB_DEVICE_NUM}/dvr${DVB_DEVICE_NUM} Unavailable\n"
kill ${PIDOF_AZAP}
remove_entry
exit 1
fi
printf "$yell\tRECORDING TO :$cyan ${FILE_NAME}\n"
sleep ${MINUTES}m
kill ${PIDOF_CAT} && wait ${PIDOF_CAT} 2> /dev/null
# pkill $ZAP_COMMAND # && wait ${PIDOF_AZAP} 2> /dev/null
kill ${PIDOF_AZAP} && wait ${PIDOF_AZAP} 2> /dev/null
printf "$yell\tFINISHED REC :$cyan ${FILE_NAME}\n$reset"
remove_entry
waiting 1
function check_action {
[ -e "$SCHED_FILE" ] || waiting $SLEEP
[ "`cat $SCHED_FILE`" == "" ] && waiting $SLEEP
DAY="0"; START="0"; FINISH="0"; CHAN="0"; NAME="0"
TODAY=`date +%Y%m%d`
NOW=`date +%k%M`
while read -r DAY START FINISH CHAN NAME; do
#printf "$DAY $START $FINISH $CHAN $NAME\n"
break
done < $SCHED_FILE
if [ $DAY == $TODAY ] && [ $START -lt $NOW ]; then
printf "$red\tOld Entry : Removing $CHAN $START\n"
remove_entry
waiting 1
fi
if [ $DAY == $TODAY ] && [ $START == $NOW ]; then
record_entry
else
waiting $SLEEP
fi
function waiting {
howlong=$1
sleep $howlong && check_action
check_action
exit 0
And the script that has been working fine 24hrs at a time
#!/bin/bash
echo alarm uses a twelve hour clock
echo Type the time for the alarm to sound as 00-00-?m
echo e.g. 05-35-pm for 5:35pm :: 05-35-am for 5:35am
read TIME
function play {
A="$(date +%I-%M-%P)"
if [ $A = $TIME ]; then
for i in {1..10}; do
$(aplay -c 1 /home/$USER/alarm/chime.wav); done
exit
else
wait
fi
function wait {
sleep 15 && play
play
I was hoping to have this script idling away in screen with rtorrent, always ready to do something if need be but that's not going to happen unless I can get a clue on what part of the script I need to change to not hit any limits. My websearches are failing me on this...
Last edited by moetunes (2012-06-24 21:41:52)

Thanks falconindy. I changed to using a while loop.
#!/bin/bash
set -o nounset
shopt -s huponexit
# User defines
declare -i DVB_DEVICE_NUM="0"
declare CHANNELS_CONF="${HOME}/Mychannels.conf"
declare SAVE_FOLDER="${HOME}/TV/tele"
declare SCHED_FILE="$HOME/.sched-tv"
declare ZAP_COMMAND="tzap"
declare -i SLEEP=15
# Program defines
declare -i DAY="0"
declare -i START="0"
declare -i FINISH="0"
declare CHAN="0"
declare NAME="0"
declare -i MINUTES="0"
declare -i REC_START="0"
declare -i REC_HOURS="0"
declare -i REC_MINS="0"
declare -i howlong=$SLEEP
declare -i PIDOF_AZAP=0
declare -i PIDOF_CAT=0
red='\033[1;31m'
green='\033[1;32m'
yell='\033[1;33m'
cyan='\033[1;36m'
white='\033[1;37m'
reset='\033[0m'
function remove_entry {
if [ "$NAME" == "" ]; then
sed "/$DAY $START $FINISH $CHAN/d" $SCHED_FILE > /tmp/dummy
else
sed "/$DAY $START $FINISH $CHAN $NAME/d" $SCHED_FILE > /tmp/dummy
fi
mv /tmp/dummy $SCHED_FILE
function record_entry {
${ZAP_COMMAND} -a ${DVB_DEVICE_NUM} -f ${DVB_DEVICE_NUM} -d ${DVB_DEVICE_NUM} \
-c $CHANNELS_CONF -r ${CHAN} >/dev/null 2>&1 &
PIDOF_AZAP=$!
if [ "$PIDOF_AZAP" == "" ]; then
printf "$red\tError starting ${ZAP_COMMAND}.\n\tFAILED: $CHAN $START\n"
remove_entry
exit 1
fi
printf "$green\tSET CHANNEL$cyan ${CHAN}\n"
REC_MINS=$((${START}%100))
REC_HOURS=0
MINUTES=0
REC_START=$(($START-$REC_MINS))
while [ $((${REC_START}+${REC_HOURS}+${REC_MINS})) -lt $FINISH ]; do
((REC_MINS++))
((MINUTES++))
if [ ${REC_MINS} -ge 60 ]; then
REC_MINS=0
((REC_HOURS+=100))
fi
done
if [ "$NAME" == "" ]; then
declare FILE_NAME="${SAVE_FOLDER}/TV-`date +%Y%m%d-%H%M`-ch.${CHAN}-${MINUTES}.min.mpg"
else
declare FILE_NAME="${SAVE_FOLDER}/TV-${NAME}-${MINUTES}.min.mpg"
fi
dd if=/dev/dvb/adapter${DVB_DEVICE_NUM}/dvr${DVB_DEVICE_NUM} \
of=${FILE_NAME} conv=noerror &
PIDOF_CAT=$!
if (( ${PIDOF_CAT} == 0 )); then
printf "$red\tError Starting Recording.\n\t/dev/dvb/adapter${DVB_DEVICE_NUM}/dvr${DVB_DEVICE_NUM} Unavailable\n"
kill ${PIDOF_AZAP}
remove_entry
exit 1
fi
printf "$yell\tRECORDING TO :$cyan ${FILE_NAME}\n"
sleep ${MINUTES}m
kill ${PIDOF_CAT} && wait ${PIDOF_CAT} 2> /dev/null
# pkill $ZAP_COMMAND # && wait ${PIDOF_AZAP} 2> /dev/null
kill ${PIDOF_AZAP} && wait ${PIDOF_AZAP} 2> /dev/null
printf "$yell\tFINISHED REC :$cyan ${FILE_NAME}\n$reset"
remove_entry
while true; do
sleep $howlong
howlong=$SLEEP
[ -e "$SCHED_FILE" ] || continue
[ "`cat $SCHED_FILE`" == "" ] && continue
TODAY=`date +%Y%m%d`
NOW=`date +%k%M`
while read -r DAY START FINISH CHAN NAME; do
#printf "$DAY $START $FINISH $CHAN $NAME\n"
break
done < $SCHED_FILE
if [ $DAY == $TODAY ] && [ $START -lt $NOW ]; then
printf "$red\tOld Entry : Removing $CHAN $START\n"
remove_entry
howlong=1
continue
fi
if [ $DAY == $TODAY ] && [ $START == $NOW ]; then
record_entry
fi
done
exit 0
I think that should be ok now.

Another simple bash script to clean pacman cache

here is a simple script that I have written which cleans pacman cache folder in a way that only the packages which are now "updated" in the repositories, will get removed. This is different from what "pacman -Sc" does. pacman -Sc also removes any package which is not installed, while this script keeps all the packages which are updated whether they are installed or not.
The functionality is some how like what "apt-get autoclean" does in debian.
to use this script you need to run it with "list" or "clean" arguments. you can also use the "help" argument for more help.
I hope it helps
#! /bin/bash
# clcache - This script cleans pacman cache folder in a way that only the packages
#+ which are now updated in the repositories, will get removed. This is
#+ different from what "pacman -Sc" does. pacman -Sc also removes any package
#+ which is not installed, while this script keeps all the packages which are
#+ updated whether they are installed or not.
# I have tweaked this script to be as fast as possible, it might still need a
#+ couple of minutes to compelete based on the size of your cache folder.
# to use this script you need to run it with "list" or "clean" arguments.
# you can also use the "help" argument for more help.
# This script is written by "Ali Mousavi". Please report bugs to [email protected]
DIR="/var/cache/pacman/pkg" #the default directory of pacman cache.
ROOT_UID=0 #Only users with $UID 0 have root privilages.
TMPFILE="/tmp/cache.tmp"
# Run as root
if [ "$UID" -ne "$ROOT_UID" ]
then
echo "Must be root to run this script"
exit 1
fi
# Check for the arguments
if [ -z "$1" ]
then
echo -e 'What should I do?\nValid Argument are "list", "clean" or "help"'
exit 1
elif [ "$1" = "list" ]
then
ACTION="ls"
MESSAGE="Are you sure you want to continue?"
elif [ "$1" = "clean" ]
then
ACTION="rm -vf"
MESSAGE="Are you sure you want to remove outdated packages? This process can not be undone!"
elif [ "$1" = "help" -o "$1" = "-h" -o "$1" = "--help" ]
then
echo -e "This script checks the packages in your pacman cache directory and removes the packages that are outdated. It doesn't matter if the package is installed or not.\n\n3 arguments can be passed to the script:\n\nlist:\n\tchecks for package that are outdated and prints the names.\n\nclean:\n\tremoves outdated packages.\n\nhelp,-h,--help:\n\tprints this help text.\n\nThis script is written by \"Ali Mousavi\". Please report bugs to [email protected]"
exit 0
else
echo 'Valid Argument are "list", "clean" or "help"'
exit 1
fi
# Check if the user is sure!
echo "This might take a while based on the amount of cached packages."
echo -n "$MESSAGE(y/n) "
read ANS
if [ $ANS = "y" -o $ANS = "Y" -o $ANS = "yes" ]
then
echo "Processing packages..."
elif [ $ANS = "n" -o $ANS = "N" -o $ANS = "No" ]
then
echo "Exiting on user request"
exit 0
else
echo "Invalid answer"
exit 1
fi
# Process the packages
cd $DIR #change to cache directory.
pacman -Sl | awk '{ print $2" "$3; }' > $TMPFILE
for f in $(ls $DIR)
do
pname=$(file $f | cut -d: -f1) #Produces filename, like: fetchmail-6.3.19-1-i686.pkg.tar.xz"
spname=$(echo $pname | sed 's/-[0-9][0-9]*.*//g') #removes package version: fetchmail
pver=$(echo $pname | sed 's/.*-$[0-9\-\.][0-9\-\.]*-[0-9\-\.][0-9\-\.]*$.*/\1/g') #using pacman -Qi for all files takes a lot of time.
if [ $(echo $pver | grep '[^0-9\-\.\-\-]' | wc -l) != 0 ] #checks if package version is alright
then
pver=$(pacman -Qpi $f | grep Version | awk '{print $3}')
fi
newpver=$(grep -e "^$spname " $TMPFILE | awk '{ print $2 }')
if [[ $newpver != $pver ]]
then
$ACTION $f
fi
done
rm -f $TMPFILE
echo "Outdated packages processed successfully!"
exit 0
Last edited by tuxitop (2011-09-13 09:24:26)

tuxitop wrote:# Check for the arguments
if [ -z "$1" ]
then
echo -e 'What should I do?\nValid Argument are "list", "clean" or "help"'
exit 1
elif [ "$1" = "list" ]
then
ACTION="ls"
MESSAGE="Are you sure you want to continue?"
elif [ "$1" = "clean" ]
then
ACTION="rm -vf"
MESSAGE="Are you sure you want to remove outdated packages? This process can not be undone!"
elif [ "$1" = "help" -o "$1" = "-h" -o "$1" = "--help" ]
then
echo -e "This script checks the packages in your pacman cache directory and removes the packages that are outdated. It doesn't matter if the package is installed or not.\n\n3 arguments can be passed to the script:\n\nlist:\n\tchecks for package that are outdated and prints the names.\n\nclean:\n\tremoves outdated packages.\n\nhelp,-h,--help:\n\tprints this help text.\n\nThis script is written by \"Ali Mousavi\". Please report bugs to [email protected]"
exit 0
else
echo 'Valid Argument are "list", "clean" or "help"'
exit 1
fi
1. `echo -e 'foo\nbar\nbaz'` gets long and unreadable quickly. Instead, use here documents:
cat <<EOF
What should I do?
Valid Argument are "list", "clean" or "help"
EOF
2. Use a case command, looks cleaner:
case "$1" in
list) ... ;;
clean) ... ;;
help|-h|--hep) ... ;;
# Check if the user is sure!
echo "This might take a while based on the amount of cached packages."
echo -n "$MESSAGE(y/n) "
read ANS
if [ $ANS = "y" -o $ANS = "Y" -o $ANS = "yes" ]
then
echo "Processing packages..."
elif [ $ANS = "n" -o $ANS = "N" -o $ANS = "No" ]
then
echo "Exiting on user request"
exit 0
else
echo "Invalid answer"
exit 1
fi
Try:
read -p "hello: " -r
echo $REPLY
And again, `case` should be cleaner in this case.
# Process the packages
cd $DIR #change to cache directory.
pacman -Sl | awk '{ print $2" "$3; }' > $TMPFILE
While you quoted a lot, you left these two out. "$DIR" and "$TMPFILE" should be quoted, otherwise whitespaces will break the code.
for f in $(ls $DIR)
Apart from the same missing quotes, calling `ls` is a waste here. The following is sufficient and (maybe surprisingly) more accurate:
for f in *
How is it more accurate? Run this test script:
#!/bin/bash
DIR=/tmp/foo
mkdir -p "$DIR"
cd "$DIR"
touch a\ b c$'\n'd
for i in *; do
printf '+%s+\n' "$i"
done
printf '%s\n' ---
for i in $(ls $DIR); do
printf '+%s+\n' "$i"
done
Let's not go too far here. Just get the idea.
do
pname=$(file $f | cut -d: -f1) #Produces filename, like: fetchmail-6.3.19-1-i686.pkg.tar.xz"
Calling `file` here is, again, unnecessary. Also, filename of a package can contain ":", e.g., vi-1:050325-1-i686.pkg.tar.xz, which breaks your code.
Don't complicate things:
pname=$f
spname=$(echo $pname | sed 's/-[0-9][0-9]*.*//g') #removes package version: fetchmail
Broken for ntfs-3g-2011.4.12-1-i686.pkg.tar.xz, nvidia-173xx-utils-173.14.31-1-i686.pkg.tar.xz, etc... Something less lousy:
sed 's/$-[^-]\+$\{3\}$//' <<< "$pname"
pver=$(echo $pname | sed 's/.*-$[0-9\-\.][0-9\-\.]*-[0-9\-\.][0-9\-\.]*$.*/\1/g') #using pacman -Qi for all files takes a lot of time.
Although this might work for now, this would break if we had an architecture that starts with a digit, e.g. 686. Something less lousy:
sed 's/$.*$-$[^-]\+-[^-]\+$-[^-]\+$/\2/' <<< "$pname"
if [ $(echo $pver | grep '[^0-9\-\.\-\-]' | wc -l) != 0 ] #checks if package version is alright
then
pver=$(pacman -Qpi $f | grep Version | awk '{print $3}')
fi
Again, calling `wc` here is a waste. Anyway, why is this check necessary at all?
newpver=$(grep -e "^$spname " $TMPFILE | awk '{ print $2 }')
if [[ $newpver != $pver ]]
then
$ACTION $f
fi
done
rm -f $TMPFILE
echo "Outdated packages processed successfully!"
exit 0
The post is getting too long, so so much from me. If there's anything you don't understand yet, read bash(1).
If I sound harsh or anything, don't be discouraged. Just keep reading, keep improving.
Last edited by lolilolicon (2011-09-13 12:53:04)

[SOLVED] problem with spaces and ls command in bash script

I am going mad with a bash script I am trying to finish. The ls command is driving me mad with spaces in path names. This is the portion of my script that is giving me trouble:
HOMEDIR="/home/panos/Web Site"
for file in $(find "$HOMEDIR" -type f)
do
if [ "$(dateDiff -d $(ls -lh "$file" | awk '{ print $6 }') "$(date +%F)")" -gt 30 ];
then echo -e "File $file is $(dateDiff -d $(ls -lh "$file" | awk '{ print $6 }') "$(date +%F)") old\r" >> /home/panos/scripts/temp;
fi
done
The dateDiff() function is defined earlier and the script works fine when I change the HOMEDIR variable to a path where there are no spaces in directory and file names. I have isolated the problem to the ls command, so a simpler code sample that also doesn't work correctly with path names with spaces is this:
#!/bin/bash
HOMEDIR="/home/panos/test dir"
for file in $(find "$HOMEDIR" -type f)
do
ls -lh "$file"
done
TIA
Last edited by panosk (2009-11-08 21:55:31)

oops, brain fart. *flushes with embarrassment*
-- Edit --
BTW, for this kind of thing, I usually do something like:
find "$HOMEDIR" -type f | while read file ; do something with "$file" ; done
Or put those in an array:
IFS=$'\n' ; files=($(find "$HOMEDIR" -type f)) ; unset IFS
for file in "${files[@]}" ; do something with "$file" ; done
The later method is useful when elements of "${files[@]}" will be used multiple times across the script.
Last edited by lolilolicon (2009-11-09 08:13:07)

/etc/rc.d/network: bash script: how to find out, if there was an error

hello!
i want to write a bash script for my wireless lan. for this i need the information, if the network daemon has connected successfully or failed.
but there is a big problem: starting network success' every time, whether there was an error or not:
$ /etc/rc.d/network start
:: Starting network profile: 00wlan_home [BUSY]
Error for wireless request "Set Mode" (8B06) :
SET failed on device wlan0 ; No such device.
[FAIL]
:: Starting Network [DONE]
$ ls /var/run/daemons/
... network ...
can someone help me please? how can i realize that "::Starting Network ..." also fails and the script returns an exit status 1?
thanks for your help, maybe we can improve the script. but i'm not a geek in bash!
mfg iggy

iggy wrote:
hello!
i want to write a bash script for my wireless lan. for this i need the information, if the network daemon has connected successfully or failed.
but there is a big problem: starting network success' every time, whether there was an error or not:
$ /etc/rc.d/network start
:: Starting network profile: 00wlan_home [BUSY]
Error for wireless request "Set Mode" (8B06) :
SET failed on device wlan0 ; No such device.
[FAIL]
:: Starting Network [DONE]
$ ls /var/run/daemons/
... network ...
can someone help me please? how can i realize that "::Starting Network ..." also fails and the script returns an exit status 1?
thanks for your help, maybe we can improve the script. but i'm not a geek in bash!
mfg iggy
try using netcfg to start the wireless profile, that should keep you happy until the new network scripts are unleashed... which won't have this problem.
James

Bash script doesn't work (Also, help me condense it)...

I am trying to make myself a bash script which combines files together based off of a config file. It is automating combining the audio book tracks I ripped of my CDs into chapters for easier reference. My first problem is that even though I used ', cat still thinks that everything is a separate file. My second problem is that it is way too long, any way I can have it automatically go up 1 chapter until a specified number (ie, until the value of the CHAPTERS variable)? Thanks to those who help.
chapcomb.sh
#!/bin/bash
# * ChapterCombine *
# * By smartboyathome *
# * A script which was made to combine *
# * chapters from ripped audio books *
# * together, but can be edited to *
# * combine just about anything. *
# * The config file is located in your *
# * home directory, under the name *
# * '.chapcomb.config'. If you do not *
# * have this file, create it. *
# * Otherwise this script will not *
# * run, as it won't have the proper *
# * variables. *
# * This can be changed by changing *
# * the CONFIG variable below. *
# * Licensed under: *
# * SmartLicense version 1.0 *
VERSION=0.1
usage() {
echo "Chapter Combine v$VERSION"
echo "A configuration file must be made in order to use this script. Configuration files are located at $CONFIG. This can be changed by adding CONFIG='blah' before this command, or by changing the script directly. See the sample file for how it should look."
while [ "$#" -ne "0" ]; do
case $# in
--help)
usage
exit 0
-h)
usage
exit 0
esac
done
# The config file stuff.
if [ -z "$CONFIG" ]; then
CONFIG="$HOME/.chapcomb.config"
fi
. $CONFIG
cd "$BOOKDIR"
combine() {
# Checks if file exists, and if so, deletes it.
if [ -a $NAME ]; then
rm $NAME
fi
# Combines files
cat $FILES >> $NAME
# Checks to make sure that the chapter combined ok.
if [ -s "$NAME" ]; then
echo "File $NAME is ok."
else
echo "File $NAME had an error and didn't combine. Please fix config file and rerun this script."
exit 0
fi
chapter01
combine
chapter02
combine
chapter03
combine
chapter04
combine
chapter05
combine
chapter06
combine
chapter07
combine
chapter08
combine
chapter09
combine
chapter10
combine
chapter11
combine
chapter12
combine
chapter13
combine
chapter14
combine
chapter15
combine
chapter16
combine
chapter17
combine
chapter18
combine
chapter19
combine
chapter20
combine
chapter21
combine
chapter22
combine
chapter23
combine
chapter24
combine
chapter25
combine
chapter26
combine
chapter27
combine
chapter28
combine
chapter29
combine
.chapcomb.config
# Config file for ChapterCombine
# DO NOT DELETE, OR CHAPTERCOMBINE WILL NOT FUNCTION!
# Book's Directory
BOOKDIR='/media/Home/aabbott/Star Wars Fate of the Jedi Outcast'
# Each chapter's settings.
chapter01() {
# FILES='Outcast\ Disc\ 1/01\ Track\ 1.mp3 Outcast\ Disc\ 1/02\ Track\ 2.mp3 Outcast\ Disc\ 1/03\ Track\ 3.mp3 Outcast\ Disc\ 1/04\ Track\ 4.mp3'
FILES="'Outcast Disc 1'/{'01 Track 1','02 Track 2','03 Track 3','04 Track 4'}.mp3"
NAME='Chapter01.mp3'
chapter02() {
# FILES='Outcast\ Disc\ 1/05\ Track\ 5.mp3 Outcast\ Disc\ 1/06\ Track\ 6.mp3 Outcast\ Disc\ 1/07\ Track\ 7.mp3 Outcast\ Disc\ 1/08\ Track\ 8.mp3 Outcast\ Disc\ 1/09\ Track\ 9.mp3 Outcast\ Disc\ 1/10\ Track\ 10.mp3 Outcast\ Disc\ 1/11\ Track\ 11.mp3'
FILES="'Outcast Disc 1'/{'05 Track 5','06 Track 6','07 Track 7','08 Track 8','09 Track 9','10 Track 10','11 Track 11'}.mp3"
NAME='Chapter02.mp3'
chapter03() {
# FILES='Outcast\ Disc\ 1/12\ Track\ 12.mp3 Outcast\ Disc\ 1/13\ Track\ 13.mp3 Outcast\ Disc\ 1/14\ Track\ 14.mp3 Outcast\ Disc\ 1/15\ Track\ 15.mp3 Outcast\ Disc\ 1/16\ Track\ 16.mp3'
FILES="'Outcast Disc 1'/{'12 Track 12','13 Track 13','14 Track 14','15 Track 15','16 Track 16'}.mp3"
NAME='Chapter03.mp3'
chapter04() {
# FILES='Outcast\ Disc\ 2/01\ Track\ 1.mp3 Outcast\ Disc\ 2/02\ Track\ 2.mp3 Outcast\ Disc\ 2/03\ Track\ 3.mp3 Outcast\ Disc\ 2/04\ Track\ 4.mp3'
FILES="'Outcast Disc 2'/{'01 Track 1','02 Track 2','03 Track 3','04 Track 4'}.mp3"
NAME='Chapter04.mp3'
chapter05() {
FILES="'Outcast Disc 2'/{'05 Track 5','06 Track 6','07 Track 7','08 Track 8'}.mp3"
NAME='Chapter05.mp3'
chapter06() {
FILES="'Outcast Disc 2'/{'09 Track 9','10 Track 10','11 Track 11','12 Track 12','13 Track 13'}.mp3"
NAME='Chapter06.mp3'
# This one needs some special parameters as the chapter is split between two Discs.
chapter07() {
FILES="{'Outcast Disc 2'/{'14 Track 4','15 Track 15','16 Track 16','17 Track 17'}.mp3,'Outcast Disc 3'/{'01 Track 1','02 Track 2','03 Track 3'}}.mp3"
NAME='Chapter07.mp3'
chapter08() {
FILES="'Outcast Disc 3'/{'04 Track 4','05 Track 5','06 Track 6','07 Track 7','08 Track 8'}.mp3"
NAME='Chapter08.mp3'
chapter09() {
FILES="'Outcast Disc 3'/{'09 Track 9','10 Track 10','11 Track 11'}.mp3"
NAME='Chapter09.mp3'
chapter10() {
FILES="'Outcast Disc 3'/{'12 Track 12','13 Track 13','14 Track 14','15 Track 15'}.mp3"
NAME='Chapter10.mp3'
chapter11() {
FILES="'Outcast Disc 4'/{'01 Track 1','02 Track 2','03 Track 3'}.mp3"
NAME='Chapter11.mp3'
chapter12() {
FILES="'Outcast Disc 4'/{'04 Track 4','05 Track 5','06 Track 6','07 Track 7','08 Track 8'}.mp3"
NAME='Chapter12.mp3'
chapter13() {
FILES="'Outcast Disc 4'/{'09 Track 9','10 Track 10','11 Track 11'}.mp3"
NAME='Chapter13.mp3'
chapter14() {
FILES="'Outcast Disc 4'/{'12 Track 12','13 Track 13','14 Track 14'}.mp3"
NAME='Chapter14.mp3'
chapter15() {
FILES="{'Outcast Disc 4'/'15 Track 15','Outcast Disc 5'/{'01 Track 1','02 Track 2','03 Track 3','04 Track 4','05 Track 5'}}.mp3"
NAME='Chapter15.mp3'
chapter16() {
FILES="'Outcast Disc 5'/{'06 Track 6','07 Track 7','08 Track 8','09 Track 9'}.mp3"
NAME='Chapter16.mp3'
chapter17() {
FILES="'Outcast Disc 5'/{'10 Track 10','11 Track 11','12 Track 12','13 Track 13'}.mp3"
NAME='Chapter17.mp3'
chapter18() {
FILES="{'Outcast Disc 5'/'15 Track 15','Outcast Disc 6'/{'01 Track 1','02 Track 2'}}.mp3"
NAME='Chapter18.mp3'
chapter19() {
FILES="'Outcast Disc 6'/{'03 Track 3','04 Track 4','05 Track 5','06 Track 6','07 Track 7','08 Track 8'}.mp3"
NAME='Chapter19.mp3'
chapter20() {
FILES="'Outcast Disc 6'/{'09 Track 9','10 Track 10','11 Track 11','12 Track 12','13 Track 13','14 Track 14'}.mp3"
NAME='Chapter20.mp3'
chapter21() {
FILES="'Outcast Disc 6'/{'15 Track 15','16 Track 16','17 Track 17','18 Track 18','19 Track 19'}.mp3"
NAME='Chapter21.mp3'
chapter22() {
FILES="'Outcast Disc 7'/{'01 Track 1','02 Track 2','03 Track 3','04 Track 4'}.mp3"
NAME='Chapter22.mp3'
chapter23() {
FILES="'Outcast Disc 7'/{'05 Track 5','06 Track 6','07 Track 7','08 Track 8'}.mp3"
NAME='Chapter23.mp3'
chapter24() {
FILES="'Outcast Disc 7'/{'09 Track 9','10 Track 10','11 Track 11','12 Track 12','13 Track 13'}.mp3"
NAME='Chapter24.mp3'
chapter25() {
FILES="{'Outcast Disc 7'/{'14 Track 14','15 Track 15','16 Track 16','17 Track 17'},'Outcast Disk 8'/'01 Track 1'}.mp3"
NAME='Chapter25.mp3'
chapter26() {
FILES="'Outcast Disc 8'/{'02 Track 2','03 Track 3','04 Track 4','05 Track 5'}.mp3"
NAME='Chapter26.mp3'
chapter27() {
FILES="'Outcast Disc 8'/{'06 Track 6','07 Track 7','08 Track 8','09 Track 9'}.mp3"
NAME='Chapter27.mp3'
chapter28() {
FILES="'Outcast Disc 8'/{'10 Track 10','11 Track 11','12 Track 12','13 Track 13'}.mp3"
NAME='Chapter28.mp3'
chapter29() {
FILES="'Outcast Disc 8'/{'14 Track 14','15 Track 15','16 Track 16'}.mp3"
NAME='Chapter29.mp3'

kumyco wrote:
for FILES=test/{a,b,c} you may want to do something like
FILES=$(echo test/{a,b,c})
That's a good one. And eval would work with simple examples, but once you have spaces and such in filenames it won't work I think.
If you are going to do this often, then there are too many things that can go wrong with a script that tries to automatically generate the filenames. Even 01* can go wrong.
So if you do have the filenames all in the .conf, then you can replace FILES= with cat and NAME= with >
The actual script doesn't add that much, except checking if it exists (just use > instead of >>) and if it isn't empty (not really necessary) (why did you put a license on that? is that even legal?)
So just use the .conf file as the main script.
Turn this:
BOOKDIR='/media/Home/aabbott/Star Wars Fate of the Jedi Outcast'
chapter01() {
FILES="'Outcast Disc 1'/{'01 Track 1','02 Track 2','03 Track 3','04 Track 4'}.mp3"
NAME='Chapter01.mp3'
chapter02() {
FILES="'Outcast Disc 1'/{'05 Track 5','06 Track 6','07 Track 7','08 Track 8','09 Track 9','10 Track 10','11 Track 11'}.mp3"
NAME='Chapter02.mp3'
into this:
cd '/media/Home/aabbott/Star Wars Fate of the Jedi Outcast'
cat 'Outcast Disc 1'/{'01 Track 1','02 Track 2','03 Track 3','04 Track 4'}.mp3 > 'Chapter01.mp3'
cat 'Outcast Disc 1'/{'05 Track 5','06 Track 6','07 Track 7','08 Track 8','09 Track 9','10 Track 10','11 Track 11'}.mp3 > 'Chapter02.mp3'
Right?
Why would you build anything around that?
If you are sure the filenames are all the same, you can use *
cat *\ 1/*\ {1..4}.mp3 > Chapter01.mp3
cat *\ 100/*\ {70..99}.mp3 > Chapter99.mp3

Bash script to trim all filenames with special characters recursively?

Hi,
I have a 30 GB directory full of data I recovered from a friend's laptop after her Windows XP crashed. I'd like to burn that data, but I can't, because many of the filenames contain weird characters (spaces, accents, things even worse that my XTerm displays as inverted question marks). So, mkisofs exits with an error.
I'd like to clean that mess up, but it would take months to do that manually. Well, I only know a very little Bash, but I think this problem is already too heavy for my modest knowledge. Here's the problem:
- check the contents of directory ~/backup recursively
- find files whose filenames contain characters other than [A-Za-z0-9] and then maybe "-" and "_" and ".".
- replace these characters either by an "_" or just erase them
Now how would I translate that into a little Bash script?
Cheers...

Heyyyyy... nice idea

A bash script to backup system only with modified files

Hi,
I've made a simple bash script to exam which files are modified and needed to be backed up.
It will use:
1. the hash in Pacman's database (/var/lib/pacman/local/<pkg_ver>/files
2. if no hash in the database, calculate it by our self from cache (/var/cache/pacman/pkg/<pkg_ver>.pkg.tar.gz
3. if no cache found, compare build date and last modified date
4. otherwise, this file better be backed up.
Currently it will only print which files are needed to be backed up, but no backup actually happens. (dry run)
And it is only in early development stage, please be careful.
USAGE:
<the script name> <where to backup files, a directory> <the files, or directories, separated by space, that are going to be examined>...
Here is the code.
#!/bin/bash
# usage:
# $1: file to backup
function do_backup() {
echo
function smart_bak() {
pkg=$(pacman -Qo "$1" 2>/dev/null)
if [ 1 -eq $? ] ; then
# No package owns $1 (locally created)
if [ "$1" != "${1%.pacsave}" ] ; then
echo "skip $1 (left by removed package)"
else
echo "backup $1 (local file)"
fi
else
pkg=${pkg#$1 is owned by }
# evaluate
# by hash
cur=$(md5sum $1)
cur=${cur%% *}
pkg_ver=${pkg/ /-}
org=$(grep "^${1:1}" "/var/lib/pacman/local/$pkg_ver/files")
org_hash=${org##* }
if [ "$org" != "$org_hash" ] ; then
# the org hash is in Pacman's database
if [ "$org_hash" = "$cur" ] ; then
echo "skip $1 (original config)"
else
echo "backup $1 (modified config)"
fi
else
# no hash
# find out hash myself?
ARCH=$(uname -m)
if [ -r "/var/cache/pacman/pkg/$pkg_ver-$ARCH.pkg.tar.gz" ] ; then
org=$(tar -Oxzf "/var/cache/pacman/pkg/$pkg_ver-$ARCH.pkg.tar.gz" "${1:1}" | md5sum -)
org_hash=${org%% *}
if [ "$cur" = "$org_hash" ] ; then
echo "skip $1 (original)"
else
echo "backup $1 (modified)"
fi
else
# no cache, may be a AUR package
# fall back to built date?
date=$(pacman -Qi ${pkg% *} | grep "^Build Date")
date=${date#*: }
date=$(date -d "$date" +%s)
mod=$(ls -l $1)
mod=${mod% $1}
mod=${mod#* * * * * }
mod=$(date -d "$mod" +%s)
tmp1=$(expr $mod "+" 60)
tmp2=$(expr $mod "-" 60)
if [ "$date" -le "$tmp1" -a "$date" -ge "$tmp2" ] ; then
echo "skip $1 (the same date)"
else
echo "backup $1 (unknown)"
fi
fi
fi
fi
function smart_bak_dir() {
for i in $(ls -A "$1") ; do
tmp="${1%/}/$i"
if [ -f "$tmp" ] ; then
smart_bak "$tmp"
elif [ -d "$tmp" ] ; then
smart_bak_dir "$tmp"
else
echo "skip $tmp (not a regular file nor a directory)"
fi
done
# usage:
# $1: the directory to store this backup
# $2: directory to evalualte for backup
# function main()
# init
target="$1"
shift
# check
if [ ! -d "$target" -o ! -x "$target" -o ! -w "$target" ] ; then
exit 4
fi
for i in $* ; do
if [ -f "$i" ] ; then
smart_bak "$i"
elif [ -d "$i" ] ; then
smart_bak_dir "$i"
else
echo "skip $i (unknown argument)"
fi
done
Good luck,
bsdson
Last edited by bsdson.tw (2008-12-30 07:53:05)

Thanks for this script. Nice work.
Can we traverse the pacman.log backwards up and rollback each operation (including "installed" in this). Something like:
history=$(tail -n +$(grep -m 1 -n "$1" "$LOG" | cut -d ":" -f 1) "$LOG" | tac | grep -E "(upgraded|installed)" | cut -d " " -f 3-)
Last edited by g33k (2008-11-04 15:08:07)

Bash Script checking time,

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