10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Below are three variables, which I want to pass into variable RESULT1
username1=userid
poihostname1=dellsys.com
port1=8080
How can I pass these variables into below code...
RESULT1=$((ssh -n username1@poihostname1 time /usr/sfw/bin/wget --user=sam --password=123 -O /dev/null -q... (4 Replies)
Discussion started by: manohar2013
4 Replies
2. Shell Programming and Scripting
I use csh a lot but I don't really write csh scripts. Now I have a need to implement a security check (written in perl; verify an user input security code) into a csh script. Here is the senario:
#csh
1. call the perl script
2. if the perl script returns 'true', pass on;
if the perl... (1 Reply)
Discussion started by: Julian16
1 Replies
3. Programming
Hello,
I have the following problem:
I have makefileproj and makefilemod in a build process for a complex project - from makefileproj I call the makefilemod.
In makefilemod I generate a list containing objects eg,: "../../../25_Build/Results/Objects/FBL/Fls.o... (4 Replies)
Discussion started by: marina_lmv
4 Replies
4. Shell Programming and Scripting
Hi,
I was trying to do something where I would be able to export one local variable in a telnet subshell to its parent shell.
I found something like this over here, but couldnt exactly understand it :(.
I am referring to this part actually:
#! /usr/bin/ksh
exec 4>&1
tail -5 >&4 |&
exec... (4 Replies)
Discussion started by: King Nothing
4 Replies
5. Shell Programming and Scripting
Hello,
I have a csh script that creates an environment variable. I want to pass the environment variable(CURR_TABLE_DATE) to an Informix sql script. Here is the csh:
#!/bin/csh -f
setenv INFORMIXSERVER market3_tcp
setenv CURR_TABLE_DATE 20090714
set DATABASE = gm_cdr
set SQL_DIR =... (0 Replies)
Discussion started by: jwoj
0 Replies
6. Shell Programming and Scripting
Hi there!
I'm trying to write a script that will capture output from a command and assign it to a variable.
Let's say, for example, I'd like to catch from inside the script whatever the following command outputs:
ls *.aaa
and put it into a variable "listoffiles".
What I tried was:
set... (3 Replies)
Discussion started by: machinogodzilla
3 Replies
7. Shell Programming and Scripting
Hello all
i need to pass to my shell script parameter that looks like "2 3 3"
inside the script i need to use this string that looks like this "2 3 3"
but when i try to print the script im getting syntax error , this is my script :
set s = $1
echo $s (1 Reply)
Discussion started by: umen
1 Replies
8. Shell Programming and Scripting
I have a question about how to change variables in parent shell.
My script, test.sh, is below:
#!/bin/sh
# test.sh
PATH=.
The commands I ran for test:
$ echo $PATH
.:/usr/bin:/usr/sbin:/usr/local/sbin:
$ sh test.sh
$ echo $PATH
.:/usr/bin:/usr/sbin:/usr/local/sbin:
... (1 Reply)
Discussion started by: pankai
1 Replies
9. Shell Programming and Scripting
Hi All,
I am trying to put the csh variable into a perl.
In the below case, i am trying to put the csh variable "var" into my perl code. I tried to use '"$var"' but i don;t think it works.
Can anybody help me pls?
#!/bin/csh
set var = `echo "xxx"`
perl myperlcode.pl file
... (9 Replies)
Discussion started by: Raynon
9 Replies
10. UNIX for Dummies Questions & Answers
Hi,
I am using bash and need to run a set of tcsh scripts that set environment variables. Is there a way to do this? Any help greatly appreciated. (3 Replies)
Discussion started by: konndanley
3 Replies
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)
