I am using a telnet session (VT100) and need to modify my .profile so that it will set the color of the telnet session. I am not using Xterm (ie: can't use .Xdefaults). I am able to change the colors via menu's but need to preset in .profile. Is this possible??? Can't find anything at all on how... (3 Replies)
Hi,
I need to set the background colors for cygwin console, when I do ssh to production boxes.
This should be done through commands..
Please suggest me asap.
Thanks in advance. (3 Replies)
I have two issues with this script.
1. I cannot seem to get my counters to count correctly.
2. My function to eject to CAP1 or CAP2 is hung in a loop and doens't exit back to the previous function. I would like to be able to select which cap to eject to . Each cap holds only 40 tapes, so when one... (15 Replies)
Original code used fwrite instead of putc.
What is expected is that the destination file will be written to. Instead I end up with a zero length file. I'm sure there is something simple I'm missing.
tia.
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
int main(int argc, char... (6 Replies)
Hi all,
Let me first start out by saying I'm a perl newbie and hope somebody can help, for the life of me I can't figure out why my script will not find and download a remote file via FTPSSL. What it's supposed to do is find the latest file named... (4 Replies)
In my .exrc file I have line numbers turned on but it adds an indent. I don't like this, is there a way to have the line numbers at the left edge of my terminal instead of indented? Here's my .exrc
1 set ignorecase noslowopen report=0 autoindent showmatch showmode nu
2 set... (4 Replies)
I am trying to script up a build of my system from source, and the first couple of steps requires me to do a pull from a CVS mirror three times, and then the script begins.
What I'd like is to be able to do one CVS pull, then start the build of userland, and while userland is building, pull down... (1 Reply)
Dear Friends
I want to, set the background of mail as image/colorful using scripting.
I try by send mail command but it is not working.Please give me suggestion on this. (1 Reply)
Discussion started by: AhmedLakadkutta
1 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)