I posted this in Shell scripting... maybe I'll try it in this forum..
*****************
I wrote a script to stop a process,truncate its log files and re-start the process...
We are using Progress Software in Unix ( Sun Sparc)
When ever I start this progress program , it should kick off a... (1 Reply)
Hi,
I wrote a script to stop a process,truncate its log files and re-start the process...
We are using Progress Software in Unix ( Sun Sparc)
When ever I start this progress program , it should kick off a C pgm in the background..
The script work perfectly fine when I run it from command... (4 Replies)
All,
I have a script that runs on 2 servers and there seems to be something wrong. It's producing different results on the 2 servers.
Here is the script on server1 which is behaving correctly but on 2 behaving differently.
2nd server:
I couldn't make out whats the error is?... (5 Replies)
Guys i have strange behaviour with command output being saved in a variable instead of a tmp file.
1. I suck command output into a variable
Sample command output
# cleanstats
DRIVE INFO:
----------
Drv Type Mount Time Frequency Last Cleaned Comment
*** ****... (1 Reply)
Im trying to execute the below command on our server to list files and replace the newline in the file list with spaces, but the character 'n' is getting replaced with a space, is there any environment variable that needs to be set in UNIX?
sh -c 'ls -trx... (1 Reply)
I have attached a file with few records. First 2 characters of each record are binary characters. I can remove it by
and it works fine. But
is behaving differently and removing more than expected characters. Can someone help me in accomplishing it through sed? Thanks in advance. (13 Replies)
When you run this script in a command prompt it runs fines and echos the background jobs but when written to a script and run, it outputs nothing.
for job in `jobs -p`
do
echo $job
done
Any ideas what I might be doing wrong.
Thanks,
SK (3 Replies)
HI all
I have written a ksh to execute PL/sql procedure and generate the log file. The script is working fine to the extent of calling the taking input, executing PL/SQL procedure.
On one server the log file is getting generated properly. i,e it shows the DBMS output . The log file size was... (9 Replies)
I have a memory card of my Nokia N73 attached to laptop. There are a few partitions.
Why all partitions behave differently? As clear from the attachments, for some partition, delete option is disabled. See 'Disk 1' which is my memory card.
Here, patition 'G' (CHECK), i created in windows. The... (6 Replies)
I have multiple jobs and each job dependent on other job.
Each Job generates a log and If job completed successfully log file end's with JOB ENDED SUCCESSFULLY message and if it failed then it will end with JOB ENDED with FAILURE.
I need an help how to start.
Attaching the JOB dependency... (3 Replies)
Discussion started by: santoshkumarkal
3 Replies
LEARN ABOUT CENTOS
shell-quote
SHELL-QUOTE(1) User Contributed Perl Documentation SHELL-QUOTE(1)NAME
shell-quote - quote arguments for safe use, unmodified in a shell command
SYNOPSIS
shell-quote [switch]... arg...
DESCRIPTION
shell-quote lets you pass arbitrary strings through the shell so that they won't be changed by the shell. This lets you process commands
or files with embedded white space or shell globbing characters safely. Here are a few examples.
EXAMPLES
ssh preserving args
When running a remote command with ssh, ssh doesn't preserve the separate arguments it receives. It just joins them with spaces and
passes them to "$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)