Hello
My question is: How to find out the shell of the shell script which we are running? I am writing a script, say f1.sh, as below:
From the first line, we can say this script will run in ksh. But, how can we prove it? Can we print anything inside the script to verify it? echo $SHELL wont help since it will show the login shell which in my case is bash. echo $0 also wont help since $0 in this case will be the name of the script. The ps command does not help. It will show the name of the script in the process list, not the shell as such.
Please advice.
Last edited by guruprasadpr; 02-28-2012 at 02:21 AM..
I have a directory which contains files with different kinds of extensions .everyday a file with .log gets added to it .i want to extract the file with .log extension which is created with todays date .
thanks in advance (2 Replies)
Hi experts,
I have a shell script (korn shell on aix) where I am giving find command with file options which are read from a configuration file. For some reason I am getting an error find: 0652-017. I have put set -x in the shell script and the command looks okay. If I cut it and paste it in the... (6 Replies)
Okie here is my problem,
1. I have a directory with a ton of files.
2. I want to first get an input on how many days ago the files were created.
3. I will take those files and put it into another file
4. Then I will take the last # from each line and subtract by 1 then diff the line from the... (1 Reply)
I have a script that has the following command:
find /home/user -name test.dat
The script works as desired when running normally. However, when I run the script preceding it with 'sh', it fails. Is there something I need to account for when preceding the execution of the script with 'sh'? (1 Reply)
Use and complete the template provided. If you don't, your post may be deleted!
1. The problem statement, all variables and given/known data:
Write a C Shell Script called "hunt" that takes a filename as it's single parameter and displays the full pathname of every file name that matches,... (1 Reply)
hi
I am a newbee in Shell scripting (hardly 7 days)
I have to execute a shell script which looks like this
#!/bin/sh
var1=`date +"%Y%m%d"`
echo $var1
find . -name "$var1*" -exec mv {} Delete/ \;
the find command in the script is running independently but when kept in this script it is... (24 Replies)
Hi all,
I havea log of data.log
bear,10000,white
bear,5000,black
chicken,2000,white
chicken,4000,yellow
chicken,3000,black
lion,6000,yellow
lion,1000,white
How can we have shell script to get the percentage of each animals?
Thanks. (8 Replies)
Friends,
I have more than 1000 lines in text file which needs to be converted as UPPERCASE by adding _
com.sun.url=www.sun.com
com.ssl.port=808
com.ui.path=/apps/ssi
Expected output
com.sun.url=_COM.SUN.URL_
com.ssl.port=_COM.SSL.PORT_
com.ui.path=_COM.UI.PATH_
Thanks in... (4 Replies)
Hello,
I am looking for a shell script that can
1- take as input a variable, like "server.cpu"
2- do a search for that variable in a directory that contains subdirectories.
The search will start at the last subdirectory working up to the top level if I can not find the file
3-... (7 Replies)
Dear Friends,
Please help me on this
my script name is send.csh
In this i have written the statement like this
set args = ( city state country price )
I want to pass this array to another c shell called receiver.csh. and i want to use it in this c shell
or
how to pass to... (2 Replies)
Discussion started by: SA_Palani
2 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)