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.

Similar Messages

Sending email using bash script

Hello:
I am working on writing a bash script to notify one or more users by email of certain events. Run from the Terminal command line, and having the script "echo" text of (what would be) a form letter with in-line variable expansion (i.e., ${VARIABLE}), all seems to work as anticipated. Eventually, I want cron to launch this shell script, and send an email to an "on-subnet" user (I have postfix enabled on my Mac, and there are multiple local user accounts).
I found some stuff on the web about sending mail from bash scripts, and so I made a small little test script, that reads like this:
#!/bin/bash
VARIABLE[1]="The 12,345 quick brown foxes "
VARIABLE[2]="jumped over the 67,890 lazy dogs."
mail -s "a test email" jv << EOF
This is a test:
${VARIABLE[1]}
${VARIABLE[2]}
This is the last line of the test message.
EOF
echo "script completed"
It worked... almost... It sent a local email to my postfix mail account that read like this:
This is a test:
The 12,345 quick brown foxes
jumped over the 67,890 lazy dogs.
This is the last line of the test message.
EOF
echo "script completed"
So, I have two questions. First, the easy one (I hope):
How do I delimit the end of the text, that I want to be the message body of the email, from portions of the script that follow said email text?
Next question is a little more involved. You know how, in Mail.app, if you go to Mail Preferences>Accounts>Account Information, you can put multiple email addresses, comma-delimited, in the "Email Address" field? So, if a person entered "[email protected], [email protected], [email protected]" in this field, then, even though (s)he may be at home, and using their home ISP's mail server, (s)he could send an email apparently from either their home, work, or school email address. Of course, the mail headers clearly would show it came from and through their home machine and home ISP, but it would be displayed in the recipient's Mail client viewer as having come from one of [email protected], [email protected], or [email protected].
I'd like to do something similar here, whereby the email (that is being sent to one or more local users' postfix account on my computer) would apparently be sent from "watchdog@localhost" rather than from "jv@localhost" like it seems to do by default. Whatever account the script is run from (or presumbably, whose cron tab is launching the script) is what the "From" address is set to.
I'd rather not create an additional mail account, because I am using Mac OS X built-in accounts for the postfix mailboxes (I don't want to have to maintain a plaintext username:password file in postfix, and I don't want to create an additional user account on the computer).
So, is there a way to specify an alternate "From" username when invoking the mail -s ${SUBJECT} ${RECIPIENT} command in a bash script? Or is there a different, alternate mail command that will let me do so? (please include a description of syntax and how I'd package the above message text for the alternate method).
Thanks in advance, all!

Hi j.v.,
The > after EOF is just a typo (or may be added by the Discussion ?) and you must delete it; other > are prompts from the interactive shell. Andy's post shows an interactive use of shell, not a shell script (note the shell prompt % in front of the commands). A typical use of here document may look like
command <<ENDOFDATA
ENDOFDATA
There must be no spaces before and after ENDOFDATA. The word ENDOFDATA can be EOF or any other string which is guaranteed not to appear in the text (the .... in the example above).
You can modify the From: header by using sendmail command (postfix has it as a compatibility interface):
/usr/sbin/sendmail -t <<EndOfMessage
Subject: test mail
To: jv
From: watchdog
This is a test:
${VARIABLE[1]}
${VARIABLE[2]}
This is the last line of the test message.
EndOfMessage
There must be a blank line between the headers and the mail body.
I assume that you send these mails only to users on your local Mac. Please do not send mails to remote users by using the sendmail command unless you know what you are doing completely.
PowerMac G4 Mac OS X (10.4.5)

Bash scripts with rox

in rox-filer you can "send" files to bash scripts by right clicking on them and selecting the script. for example:
mogrify -format jpg $1
i use these scripts all the time and they are really handy but they are limited.
$1 uses the whole path and filename so it is almost impossible to do simple renaming or copy a file to a server without it being copied to /targetdir/fullpath/filename, for example.
I am trying to work out how to get the filename into my scripts - with the full path - and then chop it up into path, filename, extention. i read about word modifiers in bash e.g. !$:h - which works great on the command line but not in scripts - any ideas?

You mean dirname, basename commands?
This should be what you are looking for (I hope):
http://www.splike.com/howtos/bash_faq.html

How to send 2 variable value from bash script into java.class

#!/bin/bash
a=10
b=20
   echo $a $b | java addition
donehi there,
currently i have a simple java coding ( a + b ). and i m trying to connect with bash script but this bash script coudln't Enter 2nd value (b=20) while i running for it. may i know how do i can Enter 2 value into it?
output from terminal
[seng@localhost java_class]$ bash addition.sh
=======================================================================
simulation 1
Num_a       = 10
Num_b       = 20
Enter your Num_a : 10
Enter your Num_b : Exception in thread "main" java.lang.NumberFormatException
   at java.lang.Integer.parseInt(java.lang.String, int, boolean) (/usr/lib/libgcj.so.6.0.0)
   at java.lang.Integer.parseInt(java.lang.String) (/usr/lib/libgcj.so.6.0.0)
   at filter_god.GOD(java.util.List, java.util.List, java.lang.String, java.lang.String, int) (Unknown Source)
   at filter_god.main(java.lang.String[]) (Unknown Source)
   at gnu.java.lang.MainThread.call_main() (/usr/lib/libgcj.so.6.0.0)
   at gnu.java.lang.MainThread.run() (/usr/lib/libgcj.so.6.0.0)
=======================================================================

That code will send both numbers on a single line in standard input to the java process. So if the process reads standard input, it will get a single line that has this in it: "10 20".
I'm guessing you're sending that whole line to Integer.parseInt. But a valid number doesn't have a space in the middle.
You should split up the line using String.split. Or use a StringTokenizer. Or a regular expression. Or you can use a java.util.Scanner. Or a java.io.StreamTokenizer. Or maybe some other stuff that has slipped my mind at the moment.

Differences in writting bash-script in Solaris and in RHEL?

I wrote a script 'checkinstall' as follow and it works fine by RHEL:
[code]
#!/bin/sh
HOSTNAME=hostname
echo $HOSTNAME
if [ $HOSTNAME == "S001AP99-TEST" ]; then
    echo This is the wrong machine.\
    echo "\nAbouting installation.\n\n"
    exit 1
fi
exit 0
[/code]
But when I run this by Solaris I got:
# ./checkinstall
hostname
./checkinstall: test: unknown operator ==
I changed the line HOSTNAME=hostname to HOSTNAME=`hostname` and it outputs the correct hostname.
But I still get error:
# ./checkinstall
S001AP99-TEST
./checkinstall: test: unknown operator ==

If you want to create bash scripts, then the first step is to set the right shell in the first line => #!/bin/bash
Then, after this important step, you can try if this works. Oh surprise, it's working.

Solaris 11 - run a simple BASH script on computer startup

I need to have a simple BASH script run on my Solaris 11 machine automatically whenever the computer (re)starts. It should be run with root permissions and after the computer has fully booted. What is the easiest way to do that?
Thank you
Dusan

Hi user9368043
Yes, that should be right, and be intended this way.
See /etc/rc3.d/README and the following part from smf(5):
Legacy Startup Scripts
Startup programs in the /etc/rc?.d directories are executed
as part of the corresponding run-level milestone:
/etc/rcS.d milestone/single-user:default
/etc/rc2.d milestone/multi-user:default
/etc/rc3.d milestone/multi-user-server:default
Your question concerning upgrading to Solaris 11.1:
In the Gnome menus, you should look for (and start)
System --> Administration --> Update Manager
Let it do its work. It will give you a new boot environment, containing Solaris 11.1. Possibly, you have to perform upgrading twice. With "beadm activate", see beadm(1M), you can go back to Solaris 11.0 whenever you want.
"Local" parts of your zfs root pool, like /usr/local, home directories, /root, and so on, should be in separated file systems, and be mounted outside the root pool before upgrading. They are availlable then from any boot environment, and will not be duplicated. See more in zfs(1M), zpool(1M).
I strongly recommend upgrading. Solaris 11.1 is great.

What do you think of my Bash Script? What about the error checking?

Well what do you think of this Bash script
It works
I gave it some problems (i.e. unpluged the ethernet, messed up the URL's, uninstaled some programs...) to see if would report errors and stop or just keep going... But it did
I just kind of thought up a way to do some error checking with the commands that I know.....
What is a better way to do error checking?
What do you think I should add/Do to this script?
#!/bin/bash
# Shell script to make a USB Tumb Drive for Flashing BIOS on a Lenovo Ideapad Y510.
# This script needs to be owned and run as ROOT with the "sudo command"
# i.e. sudo usbbiosflasher
# If you have anyideas send me a PM on ubuntufourms.org my user name is HunterThomson
# Name/Rename this script usbbiosflasher and save it to the ~/home directory.
# Then run the command- chown root:root usbbiosflasher
# Then run the command- chmod 755 usbbiosflasher
# Then copy the script to the directory /usr/bin.
# Run this comand to do that- sudo cp ~/usbbiosflasher /usr/bin
# You also must have the program "mbr" installed
# You can install the mbr program by running this comand in the shell on Ubuntu
# sudo apt-get install mbr
# In Arch Linux you have to get it from Aur
# First you will need to know a few things...
# You will also need to know the Mount Point i.e. /media/disk and the /dev path i.e. /dev/sdb1.
# You can find these by using the df -T comand.
# Run df -T in the shell. Then plug in the USB Thumb Drive and run the df -T comand agin.
# The new listing is the USB Thumb Dirve.
# Also check to make sure the File System tipe is vFAT or FAT16 or FAT32.
# If it is not use gparted to format it to FAT32.
# I am farly certen that all USB Thumb drives come formated with FAT file system out of the BOX.
# You may want to fromat it anyway just to make sure.
echo "Interactive Shell Script to Make a USB Thumb Drive \for Flashing BIOS On a Lenovo Ideapad Y510"
echo ""
echo "You will need to have the program mbr installed"
echo "If you are on Ubuntu Linux you can retreve it form the repositories"
echo "If you are on Arch Linux you will need to get it from the Aur repository"
echo "Open anuther shell and \do that now..."
echo ""
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
echo ""
# The next comand will make a directory to put needed files into. Note this file and everything init will be owned by root.
mkdir ~/usbbiosfiles && check1="yes"
if [ "$check1" = "yes" ]
then
echo "Made directory usbbiosfiles... OK"
else
echo "Could not \make directory usbbiosfiles"
echo "look above \for \info"
echo "Fix the problem and run this scrip agin"
exit
fi
# The next two comands will get the FreeDOS file and the .ROM file.
cd ~/usbbiosfiles && checka="yes"
if [ "$checka" = "yes" ]
then
echo "Changing to the usbbiosfiles directory... OK"
else
echo "Could not Change to the usbbiosfiles directory"
echo "look above \for \info"
echo "Fix the problem and run this scrip agin"
echo ""
echo "removeing directory usbbiosfiles..."
echo ""
rm -r ~/usbbiosfiles
exit
fi
wget "http://www.fdos.org/bootdisks/autogen/FDOEM.144.gz" && check2="yes"
if [ "$check2" = "yes" ]
then
echo "Download of FreeDOS... OK"
else
echo "Could not Download FreeDOS"
echo "look above \for \info"
echo "Fix the problem and run this scrip agin"
echo ""
echo "removeing directory usbbiosfiles..."
echo ""
rm -r ~/usbbiosfiles
exit
fi
wget "http://ubuntuforums.org/attachment.php?attachmentid=78460&d=1216648756" && check3="yes"
if [ "$check3" = "yes" ]
then
echo "Download of the BIOS.ROM \file... OK"
else
echo "Could not Downlad the BIOS.ROM \file"
echo "look above \for \info"
echo "Fix the problem and run this scrip agin"
echo ""
echo "removeing directory usbbiosfiles..."
echo ""
rm -r ~/usbbiosfiles
exit
fi
# The next comand will name the .ROM file to the right name.
mv ~/usbbiosfiles/attachment.php?attachmentid=78460\&d=1216648756 ~/usbbiosfiles/06CN29WW.bios.update.tar.bz2 && check4="yes"
if [ "$check4" = "yes" ]
then
echo "Renameing of the BIOS.ROM \file... OK"
else
echo "Could not rename the BIOS.ROM \file"
echo "look above \for \info"
echo "Fix the problem and run this scrip agin"
echo ""
echo "removeing directory usbbiosfiles..."
echo ""
rm -r ~/usbbiosfiles
exit
fi
echo ""
# The next two comands set the variables. DEVX for the path i.e. /dev/xxx and MOUNTX for the mount point i.e. /media/xxx
verify="n"
while [ "$verify" != y ]
do
echo "You will need to know the Mount Point and the dev Path. You will also need to \make sure the File System \type is vFAT, FAT16 or FAT32."
echo ""
echo "With the USB Thumb Drive unpluged, Open another shell and run the comand df -T Then plug \in the USB Thumb Drive and run the comand df -T one \more time. The new device listed is the USB Thumb Drive. Note the Mount Point and The dev Path and the File system Type i.e. vFAT... If the File System \type is not vFAT, FAT16 or FAT32 you will need to fromat it with gparted. You may want to format the USB Thumb Drive anyway just to \make sure. In any \case delete all files and directorys on the USB drive before you go any ferther with this program."
echo ""
printf "Enter the dev path the USB Thumb Drive is at?"
read DEVX
echo ""
echo "Are you sure $DEVX is the dev path of the USB Thumb Drive... y or n?"
read verify
done
echo ""
verify="n"
while [ "$verify" != y ]
do
printf "What is the Mount Point of the USB Thumb Drive?"
read MOUNTX
echo ""
echo "Are you sure $MOUNTX is the Mount Point of the USB Drive... y or n?"
read verify
done
echo ""
install-mbr --enable A1 --partition 1 --force --timeout 0 $DEVX && check5="yes"
if [ "$check5" = "yes" ]
then
echo "Installing MBR on USB Thumb Dirve... OK"
else
echo "Could not install MBR on USB Thumb Drive"
echo "look above \for \info"
echo "Fix the problem and run this scrip agin"
echo ""
echo "removeing directory usbbiosfiles..."
echo ""
rm -r ~/usbbiosfiles
exit
fi
tar xjf ~/usbbiosfiles/*.tar.bz2 && check7="yes"
if [ "$check7" = "yes" ]
then
echo "Unpacking BIOS.ROM file... OK"
else
echo "Could not unpack BIOS.ROM file"
echo "look above \for \info"
echo ""
echo "Reformat the USB Stick to FAT32 with gparted"
echo "Fix the problem and run this scrip agin"
echo ""
echo "removeing directory usbbiosfiles..."
echo ""
rm -r ~/usbbiosfiles
exit
fi
gunzip ~/usbbiosfiles/FDOEM.144.gz && check8="yes"
if [ "$check8" = "yes" ]
then
echo "Unpacking FreeDOS files... OK"
else
echo "Could not unpack FreeDOS files"
echo "look above \for \info"
echo ""
echo "Reformat the USB Stick to FAT32 with gparted"
echo "Fix the problem and run this scrip agin"
echo ""
echo "removeing directory usbbiosfiles..."
echo ""
rm -r ~/usbbiosfiles
exit
fi
mkdir ~/usbbiosfiles/fdoem144 && check9="yes"
if [ "$check9" = "yes" ]
then
echo "Made directory fdoem144 in direcoty usbbiosfiles... OK"
echo ""
echo "Going to \sleep \for 5secs"
else
echo "Could not make directory fdoem144 in usbbiosfiles directory"
echo "look above \for \info"
echo ""
echo "Reformat the USB Stick to FAT32 with gparted"
echo "Fix the problem and run this scrip agin"
echo ""
echo "removeing directory usbbiosfiles..."
echo ""
rm -r ~/usbbiosfiles
exit
fi
modprobe loop && sleep 5 && check0="yes"
if [ "$check0" = "yes" ]
then
echo "Modprobeing loop... OK"
else
echo "Could not \modprobe loop"
echo "look above \for \info"
echo ""
echo "Reformat the USB Stick to FAT32 with gparted"
echo "Fix the problem and run this scrip agin"
echo ""
echo "removeing directory usbbiosfiles..."
echo ""
rm -r ~/usbbiosfiles
exit
fi
mount -o loop ~/usbbiosfiles/FDOEM.144 ~/usbbiosfiles/fdoem144 && check10="yes"
if [ "$check10" = "yes" ]
then
echo "Mounting FreeDOS on the fdoem144 directory... OK"
else
echo "Could not \mount FreeDOS on the fdoem144 directory"
echo "look above \for \info"
echo ""
echo "Reformat the USB Stick to FAT32 with gparted"
echo "Fix the problem and run this scrip agin"
echo ""
echo "removeing directory usbbiosfiles..."
echo ""
rm -r ~/usbbiosfiles
exit
fi
cp ~/usbbiosfiles/fdoem144/* $MOUNTX && check11="yes"
if [ "$check11" = "yes" ]
then
echo "Copying FreeDOS files to $MOUNTX... OK"
else
echo "Could not copy FreeDOS files to $MOUNTX"
echo "look above \for \info"
echo ""
echo "Reformat the USB Stick to FAT32 with gparted"
echo "Fix the problem and run this scrip agin"
echo ""
echo "removeing directory usbbiosfiles..."
echo ""
rm -r ~/usbbiosfiles
exit
fi
cp ~/usbbiosfiles/*.ROM $MOUNTX && check12="yes"
if [ "$check12" = "yes" ]
then
echo "Copying BIOS.ROM files to $MOUNTX... OK"
else
echo "Could not copy BIOS.ROM files to $MOUNTX"
echo "look above \for \info"
echo ""
echo "Reformat the USB Stick to FAT32 with gparted"
echo "Fix the problem and run this scrip agin"
echo ""
echo "removeing directory usbbiosfiles..."
echo ""
rm -r ~/usbbiosfiles
exit
fi
sync && check13="yes"
if [ "$check13" = "yes" ]
then
echo "Runing the syncing command... OK"
else
echo "Could not run the syncing command"
echo "look above \for \info"
echo ""
echo "Reformat the USB Stick to FAT32 with gparted"
echo "Fix the problem and run this scrip agin"
echo ""
echo "removeing directory usbbiosfiles..."
echo ""
rm -r ~/usbbiosfiles
exit
fi
umount ~/usbbiosfiles/fdoem144 && check14="yes"
if [ "$check14" = "yes" ]
then
echo "Unmounting of FreeDOS... OK"
else
echo "Could not unmount FreeDOS"
echo "Look above for errors or problems reported and fix the problem"
echo ""
echo "removeing directory usbbiosfiles..."
echo ""
echo "Reformat the USB Stick to FAT32 with gparted"
echo "Fix the problem and run this script agin"
rm -r ~/usbbiosfiles
exit
fi
verify="n"
while [ "$verify" != y ]
do
printf "Do you see any errors... yes or no?"
read AN2
echo ""
printf "You answered... $AN2 to errors. Is this correct... y or n?"
read verify
done
echo ""
if [ "$AN2" == "yes" ]
then
echo "User Repoted... Error"
echo "Look above for errors or problems reported and fix the problem"
echo ""
echo "removeing directory usbbiosfiles..."
echo ""
echo "Reformat the USB Stick to FAT32 with gparted"
echo "Fix the problem and run this script agin"
rm -r ~/usbbiosfiles
exit
else
echo "Success"
echo "I did a lot of error checking too and didnt find anything"
echo ""
echo "Go get a pen and paper to write down these instructions"
printf "Then hit the Enter to continue"
read WAIT
echo ""
echo "Now leave the USB Thumb Drive pluged into your computer and Reboot. When the Lenovo Logo POST screen appears hit F2 to enter the CMOS setup utility. Go over to BOOT tab and go down to HardDrive \(Not Boot Order) \then \select the USB Thumb Drive as the 1st hard drve. Then F10 and yes to save changes. Your compter will reboot agin. Then when the Lenovo Logo POST Screen appers on reboot hit F4 to enter the BIOS FLASHING program. The USB Thumb Drive will be seen as the C drive \in the list on the Left, Select it. Then \select the .ROM \file \in the list on the Right and start the BIOS FLASH. \(NOTE Your hart may stop beating... This is normal) Pray to any God you know of and your computer should restart just like normal. Hit F2 and the BIOS will now stay it is 06CN29WW. You will need to \set the boot order to the way you like it and other things \if you need to because they have been changed to the default."
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."
echo "If it is installed, check it's location, make sure it's executable and then make sure the MBR variable in this script is correct"
exit 1
fi
I wouldn't have used the checkXX variables for each stage:
mkdir ~/usbbiosfiles
if [ $? != 0 ] ; then
#failed
echo "Could not \make directory usbbiosfiles"
echo "look above \for \info"
echo "Fix the problem and run this scrip agin"
exit 1
else
echo "Made directory usbbiosfiles... OK"
fi
There is an issue with the way you do your verifications - the user can never get out unless they answer 'y' or hit CTRL+C. Something like this gives them options:
verify="n"
while [ "$verify" != "y" && "$verify" != "n" ]; do
echo "You need to answer 'y'es or 'n'o"
read verify
echo $verify | tr "[:upper:]" "[:lower:]" # This converts the answer to lowercase so replies entered in upper case will still work
done
if [ $verify != 'y' ] ; then
exit 1
fi
One last thing I try to do in scripts... Declare all your binaries as variables at the start of the program, then execute the binary program by using the variable. For example:
# Binaries
TAR='/bin/tar'
CP='/bin/cp'
CHMOD='/bin/chmod'
# Execute tar and chmod the created file
$TAR cvzf /tmp/tarfile.tar.gz /etc/*.conf
$CHMOD 400 /etc/*.conf
This way, it's easy to change the path in future without having to hunt through the script if the paths change, and it also ensures you're calling the programs using the full paths to make sure you're not executing some strange variant or alias that someone has setup. If I use `chmod` 30 times in a script, and the path changes in the future or on a different system (`chmod` is a bad example cause it's highly unlikely to change, but you know what I mean), then all you need to do is update the variable at the start of the script, and it all works again without having to script-hunt and change it 30 times.

How to download file using ftp in bash script

Hi! I'm runnig a bash script in solaris i want within the script to dowload file using ftp
How can i do it?
Tanks a lot

hello,evgchech
please try this way:
1. In the bash script, try following command:
ftp -n < ftpcmdfile2 in the ftpcmdfile (which is a file),coding the interactive commands of FTP such as:
user anonymous [email protected]
          cd /var/sun/download
          bi
          mget *.*
          bye
     try it and good luck!
Wang Yu
Developer Technical Support
Sun Microsystems
http://sun.com/developers/support

Dowload file using ftp in bash script

Hi! I'm runnig a bash script in solaris i want within the script to dowload file using ftp
How can i do it?
Tanks a lot

hello,evgchech
please try this way:
1. In the bash script, try following command:
ftp -n < ftpcmdfile2 in the ftpcmdfile (which is a file),coding the interactive commands of FTP such as:
user anonymous [email protected]
          cd /var/sun/download
          bi
          mget *.*
          bye
     try it and good luck!
Wang Yu
Developer Technical Support
Sun Microsystems
http://sun.com/developers/support

Writing to mplayer's stdin from bash script.

I was just fulling with some bash script in order to automate the listening of my favorite radio stations via mplayer and a bash script. Going through the mplayers manual I saw the option -slave.
-slave
This option switches on slave mode. This is intended for use of MPlayer as a backend to other programs. Instead of intercepting keyboard events, MPlayer will read simplistic command lines from its stdin. The section SLAVE MODE PROTOCOL explains the syntax.
At first I thought "ok, easy". I made some tries like "mplayer -slave -quiet .... < /tmp/stdin &" and then something like "echo -e 'mute' > /tmp/stdin" but it wouldn't work.
Is it possible to send a process to the background inside a bash script and then write to it's stdin?
SLAVE MODE PROTOCOL
If the -slave option is given, playback is controlled by a line-based protocol. Each line must contain one command otherwise one of the following tokens:
Commands
seek <value> [type=<0/:1/:2>]
Seek to some place in the movie. Type 0 is a relative seek of +/:- <value> seconds. Type 1 seek to <value> % in the movie. Type 2 is a seek to an absolute position of <value> seconds.
audio_delay <value>
Adjust the audio delay of value seconds
quit
Quit MPlayer
pause
Pause/:unpause the playback
grap_frames
Somebody know ?
pt_step <value> [force=<value>]
Go to next/:previous entry in the playtree.
pt_up_step <value> [force=<value>]
Like pt_step but it jumps to next/:previous in the parent list.
alt_src_step <value>
When more than one source is available it selects the next/:previous one (only supported by asx playlist).
sub_delay <value> [abs=<value>]
Adjust the subtitles delay of +/:- <value> seconds or set it to <value> seconds when abs is non zero.
osd [level=<value>]
Toggle osd mode or set it to level when level > 0.
volume <dir>
Increase/:decrease volume
[contrast|brightness|hue|saturation] <-100-100> [abs=<value>]
Set/:Adjust video parameters.
frame_drop [type=<value>]
Toggle/:Set frame dropping mode.
sub_visibility
Toggle subtitle visibility.
sub_pos <value>
Adjust subtitles position.
vo_fullscreen
Switch to fullscreen mode.
tv_step_channel <dir>
Select next/:previous tv channel.
tv_step_norm
Change TV norm.
tv_step_chanlist
Change channel list.
gui_[loadsubtitle|about|play|stop]

FIFO's are awesome and can be (ab)used for a lot of cool stuff.
I've written some applications that do just what you are trying to do ( http://github.com/trapd00r/rmcd and http://github.com/trapd00r/RPD ), if you need inspiration.
As for the backgrounding - you want to make a 'daemon', to detach from the running shell. See man fork, man 3 setsid and man 3 wait / man 3 waitpid (or my daemonize() function).

Ftp Download in bash script

Hi! I'm runnig a bash script in solaris i want within the script to dowload file using ftp
How can i do it?
Tanks a lot

For my driver download/reboot script I use a small program available in the ncftp package off of SunFreeware called ncftpget. It's takes a URL containing username, password, hostname, and path as the commandline argument and gets the file.
ftp://ftp.sunfreeware.com/pub/freeware/sparc/8/ncftp-3.0.1-sol8-sparc-local.gz
Hope that helps....
-M

Passing Files/Folders to BASH script...

I'm trying to pass a list of files and folders selected in finder to a bash script so that I can use VLC to perform some transcoding and concatenation on them.
I'm using "Get Selected Finder Items" to pass the "Files/Folders" output "As Arguments" to my script.
Problem is with spaces in the filenames. Apparently Automator delimits the list of files with spaces. So I have spaces in the filenames and spaces between the files. So my bash script just sees a list like this:
/Users/johnt/Documents/3rd Party Audio For Conversion/WFWC - 3.6.2009 3.7.2009/01c Director Report March 6 2009.wav /Users/johnt/Documents/3rd Party Audio For Conversion/WFWC - 3.6.2009 3.7.2009/01b Comm Disc Mar 6 2009.wav
...with no way to differentiate each file. Is there a way to tell automator to escape the spaces in the file paths so that my loop doesn't try to run through $@ as:
/Users/johnt/Documents/3rd
Party
Audio
for
... etc etc
Thanks

Thanks Neil, that was helpful. I'll play with that AppleScript and see what happens.
I figured this was better suited in the Automator forum since I'm trying to format the output of what Finder sends before it ever hits the Bash script. My Bash script itself has no problem, so I didn't see any point going over to the UNIX forums.
You gotta love the ability of OSX to be able to handle all sorts of technologies and integrate them well. Apparently, there's nothing Apple can do to make it's users do the same thing.

???? how to launch bash script in cron ????

with help from people in this forum, I successfully debugged the syntax in a shell script I wrote (my syntactical faux pas had to do with sending a multi-line mail message from a bash script).
I can manually launch my script from Terminal's command line, and it works perfectly (well, at least it does exactly what I told it to do:). I try to launch it via cron, and it doesn't appear to ever launch.
In /var/cron/tabs/root, the pertinent line of text reads:
00 22 * * * /usr/local/customShellScripts/script.sh
so it is supposed to launch daily at 10PM.
Other jobs listed in /var/cron/tabs/root do run, because I get emails to my postfix admin account saying that they do. However, none of those other jobs are shell scripts; they are stuff like:
24 06 * * 5 /usr/sbin/diskutil verifyVolume /
The directory listing for /var/cron/tabs/root reads:
$ ls /var/cron/tabs
total 4
drwxr-xr-x 3 root wheel 102 Mar 25 18:53:28 2006 .
drwxr-xr-x 3 root wheel 102 Mar 20 17:13:47 2005 ..
-rw-r--r-- 1 root wheel 1040 Mar 31 20:28:10 2006 root
The directory listing for script.sh reads:
$ ls /usr/local/customShellScripts/
total 24
drwxr-xr-x 6 root wheel 204 Mar 31 18:31:27 2006 .
drwxr-xr-x 11 root wheel 374 Mar 5 12:26:23 2006 ..
-rw-r--r-- 1 root wheel 6148 Feb 4 14:13:22 2006 .DS_Store
-rwxr-xr-x 1 root wheel 8058 Mar 31 20:27:50 2006 script.sh
for debug, the first two lines of script.sh read:
#!/bin/sh
/usr/bin/touch /foo
but the file /foo never gets created. I tried using just "touch /foo" and that didn't work either.
Also, since the script has a lot of calls to "echo," "expr," "date," "cut," "awk," etc., if I ever get cron to execute the script past the shebang line, do I have to preface all those calls with their full path? Or can I do something like in the old /etc/crontab file, where they defined a path variable up front
PATH=/etc:/bin:/sbin:/usr/bin:/usr/sbin
and the script will be smart enough to look in those directories for the appropriate executables?
But, getting back to the first problem, I am obviously overlooking something very basic, which is not surprising since I'm self-taught (and I guess, Apple Unix Discussions forum taught) at this unix thing and shell scripting. So, can anybody bail me out here...again?
2001 Quicksilver G4 Mac OS X (10.4.5)

Hey Reese
You bailed me out, dude! Apparently, my difficulties stemmed from me trying to directly edit /var/cron/tabs/root with pico. Never seemed to bother the other stuff, but it did this time. I am totally inept with vi, the default editor for crontab -e, which is why I had cheated before, and directly edited the /var/cron/tabs/root, el.al., so I had to find out how to
export EDITOR='pico'
in my .bashrc
After having done that, no problem, except for a latent programming logic bug that has reared its ugly head (my script is doing some date manipulation with today's and yesterday's date, and my script crashed and burned on the month change and with stuff related to single-digit date sequence numbers <10).
But, hey, I learned how to reset my default editor, so as to make life easier for me when it comes time to dorking with crontab files, and I learned that when the crontab file says "DO NOT EDIT THIS FILE - edit the master and reinstall," it means it!
Thanx for the troubleshooting hint.

Anacron: bash script not working

hi together,
i don't know why my script isn't started by anacron - so i hope someone can help me.
bash script "update" (shortened):
#!/bin/bash
function update_notifier
yaourt -Sy > /dev/null 2>&1 && sudo -u "user" notify-send -u critical "notebook" "updates: $(yaourt -Qua | wc -l)"
case $1 in
"notifier") update_notifier;;
esac
/etc/anacrontab:
SHELL=/bin/bash
PATH=/usr/local/sbin:/usr/local/bin:/usr/bin:/usr/bin/site_perl:/usr/bin/vendor_perl:/usr/bin/core_perl:
MAILTO=""
RANDOM_DELAY=30
START_HOURS_RANGE=5-22
@daily 15 cron.daily nice run-parts /etc/cron.daily
@weekly 15 cron.weekly nice run-parts /etc/cron.weekly
@monthly 15 cron.monthly nice run-parts /etc/cron.monthly
@daily 15 update.notifier /full/path/to/script/update notifier > /dev/null 2>&1
If i start my script with
update notifier
everything is working.
If i force anacron to run with
sudo anacron -f -n
everything is working.
journalctl:
anacron[2093]: Job `update.notifier' started
anacron[2093]: Job `update.notifier' terminated
PATH in anacrontab and bash are identically.
sudo -u "user" notify-send ...
gives notify-send permission to display.
So what am I missing? Thanks for any hint!

i've read it and understand that yaourt -Sy <package> is indeed a bad idea, but i just want to sync my database and then check for packages to upgrade. Could you give a good example with yaourt/pacman please?
so my function update_notifier should better be
sudo -u "user" notify-send -u critical "notebook" "updates: $(checkupdates | wc -l)"
right?
what is the better solution in /etc/anacrontab
@daily 15 update.notifier DISPLAY=:0 /full/path/update notifier
or something like this
@daily 15 update.notifier source /path/to/.bash_profile /full/path/update notifier
or this
@daily 15 update.notifier /bin/bash /full/path/update notifier
Last edited by s0l!d (2015-03-16 21:57:06)

Send mail from a script

Hi there,
I am in the process of migrating a qmail system across onto messaging server and have to duplicate some old scripts that perform various (vital) functions.
A couple of these require that I generate and then send messages from a bash script. Before I just did this:
cat $TMPMAIL | /local/qmail/bin/qmail-injectAnd the mail would be sent off and processed (the file $TMPMAIL contains the From, To, Subject etc needed to make it a correctly formatted email).
I found the 'deliver' tool in messaging server but this only allows me to send to a user on the system (by writing it into their mailbox). Unfortunately, I need to send the message to a static group on the system.
So, does messaging server have the ability to accept mail from a script (like qmail, sendmail, exim etc) and just process it like a message received in another way. If yes, any pointers on how to do it or where it will be documented as I have searched and failed to find anything.
Thanks
Josh

Why not to use mailx or mail and submit your email via SMTP?
cat $TMPMAIL | mailx -s "your subject" [email protected]

Solaris sends SIGKILL to bash script?

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