Dude,
I want to kill a process, but the processid is in a text file. I have to read the text file for the process id and pass it as parameter to the kill command.
Example
$ cat prcid.txt
18650
I want to pass the value 18650 as a process id to kill command.
$ kill -9 <value read from... (4 Replies)
Hi,
I have a my script here--
print "The Perl Script does the User health check and system health check...\n";
print "---------------------------------------------------------------------\n";
# use strict;
my($OS);
$OS = $^O;
# need to test @ARGV before GetOptions shifts it
if (@ARGV... (1 Reply)
How do we pass multiple arguments into awk :
name=john
age=12
now i have to pass both age and name into awk.. how to do it?
like : awk -v var=... (4 Replies)
How to delete both hidden (. dot files) and regular files available in a directory in a single shot (just one pass instead of two rm commands)?
The following are not helping:
rm .* (or) rm \.* (or) rm .??* (or) rm *
All these commands delete either hidden or regular files at one... (4 Replies)
Hi,
I have to use ksh on HP-UX for some scripting.
I usually use "set -e -u" in scripts to stop if errors occur or a typo is in a variable name.
Now I try to use "$@" to pass the arguments unchanged to another function, which works without problems - unless I try to call the script without... (7 Replies)
I have a task. The scenario is like this. I have a operation program (OPR1) , whose function is to simply double the (single)value it receives as input.
I have to write a script to operate the OPR1 and save its output in a file.
Later, I have to modify the script so as to be able to operate ... (0 Replies)
Hi,
I want to run a target of makfile using script by passing different arguments to it again n again. I i need to grep certain things from the log file.
eg
make abc KAB=8 BAC=8 >& KAB_BAC.log
grep "timeA" KAB_BAC.log
grep "timeB" KAB_BAC.log
(i want to store the difference of the two time... (0 Replies)
Hello,
Please, how can i pass arguments to my lib.so ? my lib.so is written in c and i need some arguments in the code ..
LD_PRELOAD=lib.so ./program
Thank you. (1 Reply)
hi,
Is it possible to pass arguments to a sftp script and use those arguments in the program?
for example
sftp_script
FILENAME=$1
#!/usr/bin/expect
spawn /usr/bin/sftp abc@ftp.abc.com
expect "abc@ftp.abc.com's password:"
send "pass\r"
expect "sftp>"
send "mput $FILENAME\r"... (9 Replies)
Discussion started by: Little
9 Replies
LEARN ABOUT CENTOS
shell-quote
SHELL-QUOTE(1) User Contributed Perl Documentation SHELL-QUOTE(1)NAME
shell-quote - quote arguments for safe use, unmodified in a shell command
SYNOPSIS
shell-quote [switch]... arg...
DESCRIPTION
shell-quote lets you pass arbitrary strings through the shell so that they won't be changed by the shell. This lets you process commands
or files with embedded white space or shell globbing characters safely. Here are a few examples.
EXAMPLES
ssh preserving args
When running a remote command with ssh, ssh doesn't preserve the separate arguments it receives. It just joins them with spaces and
passes them to "$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)