03-08-2011
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi Everyone , have a nice day
given below is a simple linux script
but its first part is not working ( variable k assignment ) , while second loop is working fine
can anyone help me out with this
#!/bin/sh
echo "Enter Date"
read date1
for i in 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14... (6 Replies)
Discussion started by: Dastard
6 Replies
2. Shell Programming and Scripting
HI im a novice with shell scripts but i need help with a random script I have this folder filled with 500 different file names... I need help creating a script that will take each filename and make a new folder named that filename and then move that file into the newly created folder. Then the... (1 Reply)
Discussion started by: emachala
1 Replies
3. Shell Programming and Scripting
Hello everybody!
This is my first time having to write a script so your help is most appreciated.Also i am a beginner when it comes to linux so please bare with me.Thanks in advance to all who will look into this for me.
I have to write a bash script that will show the free space on the hard... (4 Replies)
Discussion started by: manike
4 Replies
4. Shell Programming and Scripting
I am creating a script that will incorporate multiple variables organized in a spreadsheet for pdftk. I have a 1000 page pdf that I have to split into about 300 individual pdfs. The basic command line to extract pages is as follows:
$ pdftk file.pdf cat 1-7 output newfile.pdf
file.pdf =... (8 Replies)
Discussion started by: tankcommander
8 Replies
5. Linux
I need to write a script to which need to track errors in log and need to check last 100 lines in the log at every 5 minits. if error fund need to mail my self
error type
1. "STATE_ADMIN" if found need to print: <Jan 5, 2011 11:47:02 AM IST><ewaps2> <ADFAPPS2> < STATE_ADMIN
2."Java heap... (0 Replies)
Discussion started by: udara
0 Replies
6. Shell Programming and Scripting
I have a text file like this:
25 raj
78 rohit
89 bhanu
58 mohit
29 mano
53 rohit
63 shiva
74 lapan
63 bhanu
what i need is a linux script to reorganize this file by adding
the relevant content(number) to the names and print only once.... please help me someone. ... (1 Reply)
Discussion started by: shan1990
1 Replies
7. Shell Programming and Scripting
Hi all,
I am trying to make a Nodemanager work in RHEL 5
I got this script from 'oraclemiddleware.wordpress.com', and made appropriate changes to suit my weblogic installation.
I keep getting the error, "line 82: syntax error: unexpected end of file".
I have checked every line to make sure all... (4 Replies)
Discussion started by: chakrv1
4 Replies
8. UNIX for Dummies Questions & Answers
Hello,
could you please help me with the following request?
I need a linux command script that does the following.
1. delete folders folder1 and folder2 located in install/users/web/folder1&2.
and also delete folder3 install/jboss/server/folder3. All these folders has many folder and files... (1 Reply)
Discussion started by: bern11
1 Replies
9. Shell Programming and Scripting
can anyone help in this
i have a file like
2089,success
2089,failure
2087,failure
2089,success
2087,failure.
i want output like.
2089,success=2,failure=1
2087,success=1,failure=2
thanks (8 Replies)
Discussion started by: pradeep rawat
8 Replies
10. Shell Programming and Scripting
I need to create a bash script to run through crontab, to do the below job:
1- find files that are over 12 months old in /var "files are like file_201201222.mtd file_201201333.mtd
2- Tar them in /backup like: file_201201.tar.bz2 "every month in one tar file"
3- remove them after that
4- Send... (8 Replies)
Discussion started by: Ahmad M. Kamel
8 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)