10-12-2019
Quote:
Originally Posted by
mrjpaxton
Without explaining my entire plan of this script, I figured I could ask the question that's harder for me to understand, and figure out the rest as I go along.
You might get more responses if you explain exactly what you are trying to accomplish.
This User Gave Thanks to Neo For This Post:
9 More Discussions You Might Find Interesting
1. Programming
i have a program using the select function but i want to convert it to poll... how can i do this? thanks in advance... :) (1 Reply)
Discussion started by: rbolante
1 Replies
2. Shell Programming and Scripting
Hi
how to check input is "empty" and "numeric" in ksh?
e.g:
./myscript.ksh k
output show: invalid number input
./myscript.ksh
output show: no input
./myscript.ksh 10
output show: input is numeric (6 Replies)
Discussion started by: geoffry
6 Replies
3. UNIX for Advanced & Expert Users
When I debug vmlinux with gdb, after it connect to the target, I got below output:
usbcore.ko: No such file or directory.
Error while mapping shared library sections:
ohci_hcd.ko: No such file or directory.
Symbol file not found for usbcore.ko
Symbol file not found for ohci_hcd.ko
Symbol... (2 Replies)
Discussion started by: yanglei_fage
2 Replies
4. Shell Programming and Scripting
Input file:
2 aux003.net3.com error12
6 awn0117.net1.com error13
84 aux008 error14
29 aux001.ha.ux.isd.com error12
209 aux002.vm.ux.isd.com error34
21 alx0027.vm.net2.com error12
227 dux001.net5.com error123
22 us008.dot.net2.com error121
13 us009.net2.com error129Expected Output:
2... (4 Replies)
Discussion started by: sQew
4 Replies
5. Shell Programming and Scripting
Hi,
I have line in input file as below:
3G_CENTRAL;INDONESIA_(M)_TELKOMSEL;SPECIAL_WORLD_GRP_7_FA_2_TELKOMSEL
My expected output for line in the file must be :
"1-Radon1-cMOC_deg"|"LDIndex"|"3G_CENTRAL|INDONESIA_(M)_TELKOMSEL"|LAST|"SPECIAL_WORLD_GRP_7_FA_2_TELKOMSEL"
Can someone... (7 Replies)
Discussion started by: shis100
7 Replies
6. UNIX for Dummies Questions & Answers
Hi All,
I'm completely new to bash scripting and still learning my way through albeit vey slowly.
I need to know where to insert my server names', my ip address numbers through out the script alas to no avail.
I'm also searching on how to save .sh (bash shell) script properly.... (25 Replies)
Discussion started by: profileuser
25 Replies
7. UNIX for Dummies Questions & Answers
How to use "mailx" command to do e-mail reading the input file containing email address, where column 1 has name and column 2 containing “To” e-mail address
and column 3 contains “cc” e-mail address to include with same email.
Sample input file, email.txt
Below is an sample code where... (2 Replies)
Discussion started by: asjaiswal
2 Replies
8. Shell Programming and Scripting
I've found this script part on the stackoverflow:
if ; then
sudo bash "$0" "$@";
exit "$?";
fi
I realized that sudo bash "$0" "$@"; is the only needed for me.
But the strange thing happens when I move this line outside the IF statement:
sudo bash "$0" "$@"; stops the... (9 Replies)
Discussion started by: boqsc
9 Replies
9. Shell Programming and Scripting
Hello.
System : opensuse leap 42.3
I have a bash script that build a text file.
I would like the last command doing :
print_cmd -o page-left=43 -o page-right=22 -o page-top=28 -o page-bottom=43 -o font=LatinModernMono12:regular:9 some_file.txt
where :
print_cmd ::= some printing... (1 Reply)
Discussion started by: jcdole
1 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)