[SOLVED] Simple Shell Scripting Question - Echo and Execute?

I've got a bash script which has many different commands it executes in a row. Each time the script executes one of the commands, it outputs what it is doing to the screen:
echo "cp -r home new"
cp -r home new
echo "mv testfile new/."
mv testfile new/.
I am just wondering if there is a function to execute a command and output it at the same time. Something like...
echoandexecute("cp -r home new")
echoandexecute("mv testfile new/.")
Last edited by tony5429 (2008-08-27 19:59:04)

Otherwise you can define it yourself:
echoandexecute() {
echo $1
$1
echoandexecute "cp -r home new"
Last edited by catwell (2008-08-27 20:57:16)

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[SOLVED] advanced shell script for mount and unmount samba share

Good morning guys,
Today I've a very long question....
Hope in your help....:
I usually move from different network.
For one of those I need to mount some share that are under an ActiveDirectory server.
To do that I use samba.
Especially I've made and use the below shell script.
I know that it's so stupid but I'm a very newbie:
#!/bin/sh
echo "This is a custom script for mount my citrix share"
echo "Please insert user password (must a sudoer user)"
echo " "
sudo mount -t cifs -o username='myusername',password='mypassword' //host_ip/TsHome$/myusername /home/myuser/samba_share/TsHOME
sudo mount -t cifs -o username='myusername',password='mypassword' "//host_ip/direction" /home/myuser/samba_share/direction
echo " "
read -p "Press ENTER key to close this terminal"
exit
As I say the script work but it's so crude...!
I want/need to implement it whit the follow addictions:
1. print a feedback on mount: somenthing like "TsHOME is now mounted" or "unable to mount TsHOME"
2. check if the share are already mounted: to prevent accidentally multiple mount. If a share is already mounted I want to print something like "TsHOME is already mounted on /home/myuser/samba_share/TsHOME"
3. ask for share password (now it's in clear on script) - This is optinal
4. un-mount the share before reboot or shutdown command. That because I've notice that If i reboot or shutdown without manually un-mount the share the step of unmounting network file system became very slow
If it's no extremely difficult, can someone help me to write this script?
I know that man exist but I'm not a programmer and it's so difficult for me approch it.
Thank you in advance.
Ale
Last edited by Alexbit (2010-09-23 21:29:13)

Thank you very (VERY) much!
I've follow your information and.. it work!
If can be usefull to other this is the complete script:
#!/bin/sh
echo "This is a custom script for mount citrix share"
echo "****************************************"
echo " "
echo "Please insert domain password:"
read -s mypassword
echo " "
echo "|checking mount state...in share are not mounted mount it!|"
echo "+-------------------------------------------------------------------------+"
if grep "TsHome" /etc/mtab &>/dev/null; then
grep "TsHome" /etc/mtab | awk '{print "TsHome is already mounted on " $2}'
else
sudo mount -t cifs -o username='yourusername',password="$mypassword" //ipaddress/TsHome$ /home/Samba_share/TsHOME && echo "TsHOME is now mounted" || echo "unable to mount TsHOME"
fi
echo " "
if grep "direction" /etc/mtab &>/dev/null; then
grep "direction" /etc/mtab | awk '{print "direction is already mounted on " $2}'
else
sudo mount -t cifs -o username='yourusername',password="$mypassword" '//ipaddress/direction' /home/Samba_share/direction' && echo "direction pat is now mounted" || echo "unable to mount direction"
fi
echo " "
if grep "Area" /etc/mtab &>/dev/null; then
grep "Area" /etc/mtab | awk '{print "Area is already mounted on " $2}'
else
sudo mount -t cifs -o username='yourusername',password="$mypassword" '//ipaddress/Area' /home/Samba_share/Area && echo "Area is now mounted" || echo "unable to mount Area"
fi
echo " "
echo "All DONE!"
echo " "
read -p "Press ENTER key to close this terminal"
exit
I don't really well understand what I've to put in rc.local.shutdown....
I think somethings like:
#!/bin/bash
# /etc/rc.local.shutdown: Local shutdown script.
echo "This is a custom script for UN-mount citrix share"
echo "********************************************"
echo " "
echo "|check mount state: if mount then un-mount!|"
echo "+-------------------------------------------------------+"
echo " "
if grep "TsHome" /etc/mtab &>/dev/null; then
grep "TsHome" /etc/mtab | awk '{print "TsHome is NOT mounted -> going on..." $2}'
else
sudo umount /home/Samba_share/TsHOME && echo "TsHOME is now UN mounted" || echo "unable to UN-mount TsHOME"
fi
echo " "
if grep "direction" /etc/mtab &>/dev/null; then
grep "direction" /etc/mtab | awk '{print "direction is NOT mounted -> going on.." $2}'
else
sudo umount /home/Samba_share/direction && echo "direction is now UN mounted" || echo "unable to UN-mount direction pat"
fi
echo " "
if grep "Area" /etc/mtab &>/dev/null; then
grep "Area" /etc/mtab | awk '{print "Area is NOT mounted - Finished" $2}'
else
sudo umount /home/Samba_share/Area && echo "Area is now UN mounted" || echo "unable to UN-mount Area"
fi
echo " "
echo "going shutdown"
echo " "
sleep 5
I've try but it seems to ignore the IF statement... this is the output when ALL share are UNmounted:
$ sh /etc/rc.local.shutdown
This is a custom script for UN-mount citrix share
|check mount state: if mount then un-mount!|
+-------------------------------------------------------+
umount: /home/Samba_share/TsHOME: not mounted
unable to UN-mount TsHOME
umount: /home/Samba_share/direction: not mounted
unable to UN-mount direction
umount: /home/Samba_share/Area: not mounted
unable to UN-mount Area
going shutdown
Tomorrow I will test again when I'm at office.
Meanwhile can you check if I made a macroscopic mistakes?
Thank you again!
Last edited by Alexbit (2010-09-23 17:34:49)

Simple Shell Script Question.... [java related]

Hey guys! This is my first post, as im new here :S
I have a simple problem for a big program.
We have a .sh to install it, but when I run the .sh in terminal like i should, It says the class is not found. I believe it has to do with the syntax, as the person who made it is not a linux pro. I don't know MUCH about shell scripts, but I'm pretty sure I know where the error lies.
Our Script:
java -classpath ./:./jars/tools.jar:./jars/nexus.jar impsoft.nexus.installer.Install
chmod a+x run.sh compile.sh
The Error:
Exception in thread "main" java.lang.NoClassDefFoundError: impsoft/nexus/installer/Install
What I think the problem is:
./jars/nexus.jar impsoft.nexus.installer.Install
Thank you for ALL of your help!

Hi Justin,
Have you tried running the lines from the command line?
The second thing you may want to try is changing the relative directory for the jar file from a relative one to a fixed directory. From the error, it appears that the install program is running but it is not able to locate a library mentioned in the program (which is probably the jar file listed in the classpath).
Hope that helps.
J. Haynes
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I am looking for a simple step by step on how to create a package that can be deployed using ARD, to run a simple shell script like
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A brief search here returned nothing, but perhaps I was not using the correct terms.
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If I send it as a unix command, it will run only on machines that are currently awake and responding to ARD.
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Not being a regular user of terminal on OSX, I have managed to forget how to run a simple shell script. The purpose of the script is to rename a set of files contained in a specific directory. Here is a sample of the script I wrote some time back:
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ord2: Permission denied
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Have you set the execution bit for the script? When not, use: chmod 755 script.

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Hi,
i want Shell Script for Startup and Shutdown the database in Solaries.
could any one can hep me where i can get this script. or send to me to [email protected]
Thanks & Regards,
Gangi reddy

SHUTDOWN
SHUTDOWN ABORT]
Shuts down a currently running Oracle instance, optionally closing and dismounting a database.
Terms
Refer to the following list for a description of each term or clause:
ABORT
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You must use this option if a background process terminates abnormally.
IMMEDIATE
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NORMAL
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TRANSACTIONAL [LOCAL]
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Usage
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http://download-west.oracle.com/docs/cd/B10501_01/server.920/a90842/ch13.htm#1013607
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Simple Shell Script To Add To Default Path?

I know that this question will at first appear idiotic,but here goes.
I'm logged into a Solaris 9 shell as 'root'. I echo $PATH and see a couple of default paths. I want to add to that PATH - this can easily be done from the command line as follows:
PATH=$PATH:/some/other/path
export PATH
So, naturally, I'd like to throw this into a simple script, and when I do so, and run the script called 'hello'. So, I run 'hello' as follows:
ksh hello (I'm a kshell)
Result: no errors. Then, I check my PATH as follows:
echo $PATH
And nothing changes, it's still the same PATH!
Can anyone tell me how to do this?
Appreciate your response.
dedham_ma_man

The question shows you don't really understand how shells work.
The path is part of the environment of your current shell.
Any command you "execute" is run in a new process. And any changes made to the environment of that process cannot effect the environment of the parent process (ie your shell).
So by saying "ksh hello" your starting a new shell and changing the path in that shell. But when that shells exits and your back in the original shell, of course nothing has changed.
So the answer is that what you have to do is not "run" the script. But persuade your current shell to execute in its own context.
In a C shell that would be done by the "source" command. And in a bourne shell, its the "." command. But I'm not sure how you do it in korn shell.

Shell script for moving and renaming files

I'm not so familiar with shell scripts. I have created some simple scripts for various tasks but now I hit something I can't handle myself.
My server receives every night a logfile from another server. This file I need to rename and move to another location. Problem is that a simple mv with new filename isn't enough, I need to insert date in filename. Format for date should be ddmmyy. Also the name of incoming file changes every night. The output always starts with same letters, let's say "log", and the date is used to identify files.
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Any tips how to insert the date as part of of filename while renaming or moving the file? I prefer shell script as I'll use launchd for scheduling the script.

Hi again,
so far I've constructed this:
cd /input
for file in `ls *log`
do
echo "Copying " $file
cp $file /output/log.$file.`date +%d%m%y`
done
Quite there. I'm cding to directory, i'll focus later how to set some environmental parameters.
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Thanks again,
Juha
Message was edited by: J.Otava

How to excute a power shell script to remote machine using power shell script folder path and script name

Hi,
Let say, I have 3 parameters.
1. Script FolderPath (Remote path for e.g \\RD101\ScriptSharedFolder Here RD101 is one server)
2. Script Name(StopAllService.ps1)
3. Server Name (RD45)
I want to execute a powershell scritp in my local machine(Test1) and in that script I want to pass the above three parameters.Now I want to excute the StopAllService.ps1 script into RD45 server. But the script is available in RD101 machine.
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By
A Path Finder..
JoSwa
If a post answers your question, please click "Mark As Answer" on that post and "Mark as Helpful"
Best Online Journal

Hi,
You got 2 solutions for your problem:
1- If you have permission to run scripts in the remote computer without specifying your credential,
then, the first reply solve your problem.
2- If you have permission to run scripts in the remote computer
having to specify your credential, l then,
my solution solves your problem.
If the remote computer requires signed scripts only, you need signed script. Period. Or are you trying to break remote computer security?
If you need signed script, there's no psdrive that'll circumvent such requirement.
The problem is that the execution policy is set to "RemoteSigned". Using the URL explicitly tags that script as being from a remote source, and the policy blocks it. The PSDrive provides a local reference for the script. It does not
sign the script but the local drive reference may prevent it from being blocked for being from a remote source. I'll test that later.
Script signing is not and should never be considered a security measure. It is easily circumvented by running the script using powershell.exe, and using the -ExecutionPolicy parameter to override whatever the local execution policy setting is.
[string](0..33|%{[char][int](46+("686552495351636652556262185355647068516270555358646562655775 0645570").substring(($_*2),2))})-replace " "

Simple shell script utility to copy abs tree for build

Hi,
I'm learning shell script and decided to make a simple script to copy the folder i want from /var/abs to
a new folder so i can build the package. here it is: (remember, i'm new to shell scripting, if you know a better way to do it, you can modify my script
and post here a better solution, so, i (and others) can learn with my errors)
#!/bin/bash
#Looks for the abs tree of the software you want
#and copy it to your build path
ABSTREE=/var/abs
echo -n "What software do you want? "
read absname
result=$(find $ABSTREE -name $absname)
for i in $result; do
echo -n "$i, is this what you want? [y/n] "
read opt
if [ $opt = "y" ]; then
echo -n "Copy to... "
read buildpath
relative=${i#$ABSTREE}
absolute=$buildpath${relative%$absname}
mkdir -p $absolute
cp -r $i $absolute
echo "$i successfully copied to $absolute"
exit 0
fi
done
exit 1

spoonman wrote: mkdir -p $absolute
cp -r $i $absolute
echo "$i successfully copied to $absolute"
You are assuming `mkdir` and `cp` were successful. You should test them to make sure, and exit with failure if not:
mkdir -p $absolute || exit 1
cp -r $i $absolute || exit 1
echo "$i successfully copied to $absolute"
You could also include your own error message, but mkdir and cp would throw their own if something fails...
mkdir -p $absolute || { echo "mkdir failed"; exit 1; }
cp -r $i $absolute || { echo "cp failed"; exit 1; }
echo "$i successfully copied to $absolute"
Another way is to use `set -e` which will exit the script on any failure without explicit testing:
set -e
mkdir -p $absolute
cp -r $i $absolute
set +e
echo "$i successfully copied to $absolute"

Shell scripting question

I'm writing a shell script and I need to get $PWD. There's a cd command in my script, and my script needs to navigate back to the directory in which it was executed. Is this possible? If so, how would I go about doing it? Sorry if this is in the wrong board.

In the future, you may want to post Unix and Terminal oriented questions to the Mac OS X Technologies > Unix Forum
<http://discussions.apple.com/forum.jspa?forumID=735>

Simple shell script problem...

I am trying to get a list of directories on a remote machine, compare them with the directories on the local machine and copy any that dont match on the local machine to a backup folder. Heres my code but i am a newbie and i cant get my shell script to read from a file. The for loop never executes so i am guessing i am not reading the file correctly - see below.
#!/bin/ksh
ssh -l removeserver 192.168.xxx.xxx ls /remote/server/directory/ > /store/remote/directory/listing/motapp1files.txt
newfile=''
$newfile < /store/remote/directory/listing/motapp1files.txt
for file in $newfile;
do echo $file
if [ ! -d local/machine/directories/$file/ ]; then
echo "this folder doesnt exist on on remote server "; echo $file;
fi
done

Re-inventing the wheel perhaps. Look into rsync. Great program!
I used it in FreeBSD to do a very similar task.

Shell Script behaves different and wrong on OEL5 then SUSE 11

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$ echo "\nxxxx\tyyyy\ndddd"
<newline>
xxxx<tab>yyyy
dddd
$
But when I execute same command on OEL 5.2 , following output is coming which shows that "newline" and "tab" are not recognized and behaved as text.
$echo "\nxxxx\tyyyy\ndddd"
\nxxxx\tyyyy\ndddd
Please can some one explain to me why .
I have many shell script and they are not working properly now on OEL.

Hi ,
I had a look to man page of echo and seen that -E option of echo command is enabled by default.
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Thank you .
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Shell Script For Export And Import Of Table Records

Hello,
We have production and test instances and for constant testing we need to copy data from production to test or development environment.
At the moment what we do is manually doing export and import table records. At times this could be very tedious as we may need
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Is it a good idea to do this exercise using shell script? If so how could I do this? If this is not a good idea what are the best alternatives?
Any input is highly appreciated.
Thanks

Ah I see, your company prefers stupidity over efficiency. It would be possible to do it in a controlled environment, wouldn't it? Also the test database would be allowed to select only.
So the non-allowance is just plain stupid.
To the second question: do you use hard-coded passwords in shell scripts?
Don't you think that poses a security risk?
Don't you think that is a bigger risk than a database link, properly set up?
In my book it is!
Sybrand Bakker
Senior Oracle DBA

Simple shell script issue

Hi,
I have an issue with following shell script:
#!/bin/sh
env | while read VAR; do
RIGA=$RIGA"\""$VAR"\";"
done
echo $VAR
echo $RIGA
exit 0
Why the last echo commands (echo $VAR and echo $RIGA) don't give me any result? Why $VAR and $RIGA are empty?

From what I understand, anything to the right of a pipe is run in a sub-process in non POSIX shells, which runs in it's own environment. Variables changed inside ta sub-shell are not changed at the parent process.
Perhaps using ksh instead of bourne shell will work, or you could try input redirection rather than using pipe command. e.g.:
while read VAR; do
RIGA=$RIGA"\""$VAR"\";"
done < $(env)
echo $VAR
echo $RIGA
exit 0
Edited by: Dude on Dec 15, 2010 6:11 AM

[SOLVED] Simple Shell Scripting Question - Echo and Execute?

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