I have a few scripts that i would like to make into GUI's. Are there scripting commands to make GUI's if so where can i get the list of commands and what they do or if anyone has an example of it. Anything will help, thanks (1 Reply)
I am trying to get various portions of strings in my script, but am getting a substitution error. I followed the syntax that was described when I goggled this, but I can't get anything to work.
#! /bin/ksh/
hello="adklafk;afak"
#hello=${hello:3}
hello=${$hello:3}
happy="hey"
echo... (1 Reply)
It would be helpful if someone could help me out here. The problem I have been having is that I cannot run some commands which are valid - whenever I try to run the command I get the message "command not found". Now, if I run the same command as root it executes. These commands do not have to be... (5 Replies)
I want to write a script which would run from one host say A and connect to other remote host B and then run rest of commands in that host. I tried connecting from A host to B with SSH but after connecting to host B it just getting me inside Host B command prompt. Rest of the script is not running... (6 Replies)
Hi,
I am wondering how I can check the return value of all commands in a pipe such as
gzip -dc file.gz | sort -u > output.txt
If I run this sequence in bash and check $?, I get the return status from sort. But I want to know if the initial gzip failed.
Similarly for longer pipe chains,... (6 Replies)
Are there any documents available for checking the execution time taken by ksh commands?
My requirement is to fine tune a set of shell scripts having lot of "echos" and "date"s.
Is there a better replacement for the below code?.
echo "ABC process started on `date`"
some code..
echo... (12 Replies)
Hi
I am new to this Scripting process and would like to know How can i write a ksh script that will call other ksh scripts and write the output to a file and/or email.
For example
-------
Script ABC
-------
a.ksh
b.ksh
c.ksh
I need to call all three scripts execute them and... (2 Replies)
works fine.
echo "Deleting CHOPOne Coreaccess from LAUA..."
$ORACLE_HOME/bin/sqlplus username/password@servername << !
delete from usergrpdtl where username='acker';
commit;
!
but not working with "if statement" even $TMPDIR/adlogin.log exists and greater than 0.
if
then
... (9 Replies)
What is the correct syntax to pipe or run three awk commands? Basically, using the output of the first awk as input in the second. Then using the output of the second awk in the third. Thank you :).
awk 'FNR==NR {E; next }$3 in E {print $3, $5}' panel_genes.txt RefSeqGene.txt > update.txt |... (3 Replies)
Hello,
I have standard loop
while read -r info; do
command $info
done < info
in info text file I have multiple commands each on line that I want to execute. When I used them in console they worked, but not with this loop.
This is one of the commands in info file:
grep... (4 Replies)
Discussion started by: adamlevine
4 Replies
LEARN ABOUT CENTOS
shell-quote
SHELL-QUOTE(1) User Contributed Perl Documentation SHELL-QUOTE(1)NAME
shell-quote - quote arguments for safe use, unmodified in a shell command
SYNOPSIS
shell-quote [switch]... arg...
DESCRIPTION
shell-quote lets you pass arbitrary strings through the shell so that they won't be changed by the shell. This lets you process commands
or files with embedded white space or shell globbing characters safely. Here are a few examples.
EXAMPLES
ssh preserving args
When running a remote command with ssh, ssh doesn't preserve the separate arguments it receives. It just joins them with spaces and
passes them to "$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)