...
I just wanted to know, in perl, how can i make each line of output from the above coimmand, a selectable option in an interactive perl script, so for example
I would like to add "word -esque" numbered bulletpoints to the output of a grep search, which has multiple hits for the search term
i.e. grep x filename
1) abcd x
2) efgh x
3) ijkl x
I dont have a clue to how to start writing such a script, i cant use SED or AWK so i was maybe thinking... (2 Replies)
Hi there
could anybody point me in the right direction when it comes to looping through the output of a system command in perl (i.e. df -k) doing a test against each line to see if it matches?
for example if i have a df -k output like this and I wanted to grab the lines that matched "sda" or... (3 Replies)
Hi All,
How I will read the output of the tail -F command in perl.
I have text file with below contains
file1.txt
1
2
3
4
$running=1;
sub openLog($)
{
(my $log) = @_; (1 Reply)
Hello,
I used the following script to conect to cisco router:
#!/usr/bin/perl
use strict;
use warnings;
use Getopt::Long;
use Opsware::NAS::Connect;
my($host, $port, $user, $pass) = ('localhost','$tc_proxy_telnet_port$','$tc_user_username$','$tc_user_password$');
my $device =... (5 Replies)
Hi;
I have an output of a particular command say
$command
fstl:r-x
ajay:r-x
how can i get this in comma separated list,
eg:
fstl:r-x,ajay:r-x
Thnks; (4 Replies)
Hi All
If i run the following command
nvidia-settings -V -q screens
I get this output
X Screen on sutton:0
sutton:0.0 (Quadro FX 4600)
Is connected to the following display devices:
DELL 2007FP (DFP-0: 0x00010000)
Eizo CG243W (DFP-1:... (1 Reply)
Hi,
I have some hundreds/thousands of files named logX.dat, where X can be any integer, and they are sequential, X ranges between 1 and any number:
log1.dat log2.dat log3.dat log6.dat log10.dat ... log6000.dat
I would like to rename them to
scatter_params_0001.dat... (6 Replies)
Hi All,
Below is the 2 different ouputs of the command "ls -lrt", my question is what exactly "total 0" & "total 8" means here ?
$ ls -rtl
total 0
-rw-r--r-- 1 oracle dba 0 Feb 10 20:16 c
-rw-r--r-- 1 oracle dba 0 Feb 10 20:16 b
-rw-r--r-- 1... (1 Reply)
I am trying to have the user select two files from a numbered list which will eventually be turned into a variable then combined. This is probably something simple and stupid that I am doing.
clear
echo "Please Select the Show interface status file"
select FILE1 in *;
echo "Please Select the... (3 Replies)
Discussion started by: dis0wned
3 Replies
LEARN ABOUT DEBIAN
shell-quote
SHELL-QUOTE(1p) User Contributed Perl Documentation SHELL-QUOTE(1p)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 v5.8.4 2005-05-03 SHELL-QUOTE(1p)