Hello, I've tried for a while now to run a bash script that continues to the end, while opening new shells as needed.
I've tried
xterm -e "somecommand"; &
xterm -e " somecommand";
I've also tried
screen -S "somecommand"; &
screen -S "somecommand";
All without any luck, they... (5 Replies)
Hi
I have a shell script A which calls another 10 shell scripts which run in background. How do i make the parent script wait for the child scripts complete, or in other words, i must be able to do a grep of parent script to find out if the child scripts are still running.
My Code:
... (5 Replies)
Hi all,
I have set up a cron job which calls another shell script shell script which in turn calls a Java process. The cron tab looks so.
0,30 7-18 * * 1-5 /u01/home/weblogic/brp/bin/checkstatus.sh >> /u01/home/weblogic/logs/checkstatus.log
The checkstatus.sh scripts looks like this.
... (4 Replies)
Hi,
I have created 3 shell scripts which has to run one by one first two shell scripts will create a .txt files...which are used by the third shell script.Now I want to create a master script and run all these in a single script.
Please give a pseudo code on how to so the same.
... (4 Replies)
Hi All,
After reading that the sort command in Linux can be made to use many processor cores just by using a simple script which I found on the internet, I was wondering if I can use similar techniques for programs like the awk and sed?
#!/bin/bash
# Usage: psort filename <chunksize>... (7 Replies)
hi,
while separated they produce the usual mail alert and i can see the output...
if i write into the php script:
<?php
system('php -f /var/www/vhosts/domain.com/httpdocs/folder/script1.php');
system('php -f /var/www/vhosts/domain.com/httpdocs/folder/script2.php');
system('php -f... (0 Replies)
hi all,
I have 3 individual scripts to perform the task . 2nd script should run only after the 1st script and 3rd script must run only after first 2 scripts are executed successfully.
i want to have a single script that calls all this 3 scripts .this single script should execute the 2nd script... (1 Reply)
Dear all,
I am working on script which call other shell scripts in a loop but problem is from second script am not able to come out.
Here is the snippet:-
#!/bin/bash
HSFILE=/root/Test/Components.txt
LOGFile=/opt/domain/AdminDomain/application/logs... (3 Replies)
Hi Team,
I have the below 4 scripts which I will be running in sequential order.
This run will start for today's business date.
If all the 4 scripts are success for today that means script has ran succesfully.
Howver if any one of these 4 scripts failed then it has to take the next... (1 Reply)
Hello!
I have a scriptA.ksh and in this script I need to call script1.ksh, script2.ksh, script3.ksh, script4.ksh and script5.ksh. But want to run in two batches like
1st script1.ksh, script2.ksh, script3.ksh, once all 3 are completed then
script4.ksh script5.ksh
I have given the syntax... (1 Reply)
Discussion started by: karumudi7
1 Replies
LEARN ABOUT CENTOS
shell-quote
SHELL-QUOTE(1) User Contributed Perl Documentation SHELL-QUOTE(1)NAME
shell-quote - quote arguments for safe use, unmodified in a shell command
SYNOPSIS
shell-quote [switch]... arg...
DESCRIPTION
shell-quote lets you pass arbitrary strings through the shell so that they won't be changed by the shell. This lets you process commands
or files with embedded white space or shell globbing characters safely. Here are a few examples.
EXAMPLES
ssh preserving args
When running a remote command with ssh, ssh doesn't preserve the separate arguments it receives. It just joins them with spaces and
passes them to "$SHELL -c". This doesn't work as intended:
ssh host touch 'hi there' # fails
It creates 2 files, hi and there. Instead, do this:
cmd=`shell-quote touch 'hi there'`
ssh host "$cmd"
This gives you just 1 file, hi there.
process find output
It's not ordinarily possible to process an arbitrary list of files output by find with a shell script. Anything you put in $IFS to
split up the output could legitimately be in a file's name. Here's how you can do it using shell-quote:
eval set -- `find -type f -print0 | xargs -0 shell-quote --`
debug shell scripts
shell-quote is better than echo for debugging shell scripts.
debug() {
[ -z "$debug" ] || shell-quote "debug:" "$@"
}
With echo you can't tell the difference between "debug 'foo bar'" and "debug foo bar", but with shell-quote you can.
save a command for later
shell-quote can be used to build up a shell command to run later. Say you want the user to be able to give you switches for a command
you're going to run. If you don't want the switches to be re-evaluated by the shell (which is usually a good idea, else there are
things the user can't pass through), you can do something like this:
user_switches=
while [ $# != 0 ]
do
case x$1 in
x--pass-through)
[ $# -gt 1 ] || die "need an argument for $1"
user_switches="$user_switches "`shell-quote -- "$2"`
shift;;
# process other switches
esac
shift
done
# later
eval "shell-quote some-command $user_switches my args"
OPTIONS --debug
Turn debugging on.
--help
Show the usage message and die.
--version
Show the version number and exit.
AVAILABILITY
The code is licensed under the GNU GPL. Check http://www.argon.org/~roderick/ or CPAN for updated versions.
AUTHOR
Roderick Schertler <roderick@argon.org>
perl v5.16.3 2010-06-11 SHELL-QUOTE(1)