:confused:
I have a process which was schedule to run from 8am - 6pm daily. The scripts will search & run the commands that i was predefined in the database. Ususally, there were about 6-7 jobs for each submission and each job takes about 1-2 hrs and running one by one. And, I have a cron job... (3 Replies)
I have an HP-UX system that has remote print queues created on it. We're having trouble with the data so I stopped the queue from sending its data to the recieving server. I typed "lpstat -o<queue> " and I see two print jobs listed c_91428.1 and c_91429.1 but when I go to the /usr/spool/<queue>... (2 Replies)
My cronjob triggers the script late by 6 minutes.
/var/cron/log shows that it got triggered at the right time then where can I track, the late starting of the script.
Is there some queue mechanism, some log?
This happens sometimes, not daily. but it affects me, whenever it happens.
Logging... (1 Reply)
Hi,
I have a shell script to find files older than 'X' days ($2) in directory path ($1) and delete them.
Like this:
my_file_remover.sh /usr/home/c 90
Now, I need to modify this script and add it in CRON, so that it checks other directories also.
Like:
my_file_remover.sh /usr/home/c... (3 Replies)
Hi everyone! I'm sorry, I'm a total noob but would really appreciate any advice or help. I want to create a cron job that would run every hour and would look inside a few different folders. If any new files were created within those folders within the last hour they would be destroyed, but any... (2 Replies)
Hi
I have submitted an at command to run next week .
Now i want to remove the submitted at command .
I dont want the job to run .
Can anyone help me , with the command to remove the submitted at command .
thanks in advance ... (3 Replies)
Hi,
I am trying to submit a job to a queue on a cluster. When I run the job ( python script) from the command line it runs without putting python at the start. The script imports everything from another congifuration file (.config) but when I submit to the queue it tells me there is no module... (0 Replies)
This is a real world problem so I think you might found this interesting. We have servers which are shared by multiple team members. Each team member has its own user id and home directory. Now with time each user starts creating files which in end caused the disk to be full.
Now for creating a... (5 Replies)
hi every one. one of my friends has writen this script and send it to me. this script can find files that add-delete-modify and also send an alert by email
i'm not catch all part of it.
can anyone explain me how this work
#!/bin/bash
START="a.txt"
END="b.txt"
DIFF="c.txt"
mv ${START}... (4 Replies)
Discussion started by: nimafire
4 Replies
LEARN ABOUT CENTOS
shell-quote
SHELL-QUOTE(1) User Contributed Perl Documentation SHELL-QUOTE(1)NAME
shell-quote - quote arguments for safe use, unmodified in a shell command
SYNOPSIS
shell-quote [switch]... arg...
DESCRIPTION
shell-quote lets you pass arbitrary strings through the shell so that they won't be changed by the shell. This lets you process commands
or files with embedded white space or shell globbing characters safely. Here are a few examples.
EXAMPLES
ssh preserving args
When running a remote command with ssh, ssh doesn't preserve the separate arguments it receives. It just joins them with spaces and
passes them to "$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)