Hello All,
I am novice on Shell Scripting. Any help on this is highly appreciated.
I have a variable
$VARIABLE="$some1|$some2|$some3"
I need sub variables $SUBVAR1,$SUBVAR2,$SUBVAR3 which must be equal to $some1 , $some2 and $some3 respectively.
It works fine with
$SUBVAR1 =... (6 Replies)
Hello experts,
This might prove to be a stupid question to some of you, but I have tried to tackle it in different ways. Being new to shell scripting, I am requesting your help in coming up with an elegant solution. I am using Korn shell.
We have a directory with file names with the pattern:... (2 Replies)
Hi,
I have a string like ABC.123.XYZ-A1-B2-P1-C4. I want to delimit the string based on "-" and then get result as only two strings. One with string till last hyphen and other with value after last hyphen... For this case, it would be something like first string as "ABC.123.XYZ-A1-B2-P1" and... (6 Replies)
Hi,
My inputfile contains field separaer is ^.
12^inms^
13^fakdks^ssk^s3
23^avsd^
13^fakdks^ssk^a4
I wanted to print only 2 delimiter occurence i.e
12^inms^
23^avsd^ (4 Replies)
Hi,
I have a string say "whateverCluster".
I need everthing apart from the string "Cluster"
Input:
whateverCluster
Desired output:
whatever (5 Replies)
Hi,
for fd in $(grep "/tmp/" hello.properties)The grep gives me the below output:
deploydir=/tmp/app1/dfol
prodir= /tmp/hello/prop
......
Now i want to store /tmp/app1/dfol then /tmp/hello/prop in a variable so that i can check if those folders files exists or not.
The delimiter would... (4 Replies)
Hi,
Variable1 = MKT1,MKT2,MKT3,MKT4
Now i want to store each of these value seperated by comma to a array and access each of the values. Also find out number of such values seperated by comma.
Variable1 can have any number of values seperated by comma.
Thanks :) (3 Replies)
Hi guys!
First time poster on here, was wondering if someone could help with a problem which I'm facing.
Is it possible to use awk or sed to separate the below output based on TRANSACTION_DATE? The output would then feed into DataStage.
Contents of CSV file:... (5 Replies)
i have a snippet from server log delimited by forward slash.
/a/b/c/d/filename
i need to cut until last delimiter. So desired output should look like:
/a/b/c/d
can you please help?
Thanks in advance. (7 Replies)
Hi,
I am working in Visual studio 2008 in which i have written the code in c++,qml,qt.Its a simulator application.
I would like to create a simulator with certain changes. In order to do that i have modified the code with few changes based on the preprocessor condition.
#define... (4 Replies)
Discussion started by: SA_Palani
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)