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Top Forums Shell Programming and Scripting passing variable from bash to perl from bash script Post 302198206 by arsidh on Thursday 22nd of May 2008 10:27:22 AM
Old 05-22-2008
Error passing variable from bash to perl from bash script

Hi All,
I need to pass a variable to perl script from bash script, where in perl i am using if condition. Here is the cmd what i am using in perl
Code:
FROM_DATE="06/05/2008"
TO_DATE="07/05/2008"

"perl -ne ' print if ( $_ >="$FROM_DATE" && $_ <= "$TO_DATE" ) ' filename"

filename has following data :-
Code:
06/05/2008-07:59
06/05/2008-07:59
06/05/2008-07:59
06/05/2008-07:59
06/05/2008-07:59
07/05/2008-07:59
07/05/2008-07:59
07/05/2008-07:59
07/05/2008-07:59
07/05/2008-07:59:server5:DISK
08/05/2008-07:59:server1:DISK
08/05/2008-07:59:server2:DISK
08/05/2008-07:59:server3:DISK
08/05/2008-07:59:server4:DISK
08/05/2008-07:59:server5:DISK

if we hard code the values of FROM_DATE and TO_DATE it is working.I feel what to know why it is not working When i passing it as variable.
it will be great if some one telle me How to pass the variable to perl properly. Smilie
i am new to perl world.
Thanks
Arsidh

Last edited by Yogesh Sawant; 05-22-2008 at 12:57 PM.. Reason: added code tags
 

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SPEEDY_BACKEND(1p)														SPEEDY_BACKEND(1p)

NAME
speedy_backend - the backend process for a persistent Perl interpreter SYNOPSIS
none ; this program is not meant to be called directly. DESCRIPTION
speedy, short for SpeedyCGI, is a way to run perl scripts persistently, which can make them run much more quickly. After the script is initially run, instead of exiting, the perl interpreter is kept running inside a backend process, speedy_backend. Dur- ing subsequent runs, this interpreter is used to handle new executions instead of starting a new perl interpreter each time. A very fast frontend program, speedy, written in C, is executed for each request. This fast frontend then contacts the persistent Perl process, which is usually already running, to do the work and return the results. Each perl script runs in its own Unix process, so one perl script can't interfere with another. Command line options can also be used to deal with programs that have memory leaks or other problems that might keep them from otherwise running persistently. The speedy front end connects to the back end process, speedy_backend, via a Unix socket in /tmp. A queue is kept in a shared file in /tmp that holds an entry for each process. In that queue are the pids of the perl processes waiting for connections. The frontend pulls a process out of this queue, connects to its socket, sends over the environment and argv, and then uses this socket for stdin/stdout to the perl process. FILES
/tmp/speedy* A unix socket used to connect to the frontend process. AUTHOR
Sam Horrocks http://daemoninc.com sam@daemoninc.com NOTES
This manual page was created by Niko Tyni <ntyni@iki.fi> for Debian GNU/Linux, because the original program does not have one. It is based on the original and more complete CGI::SpeedyCGI(3pm) manual page. SEE ALSO
perl(1), CGI::SpeedyCGI(3pm), speedy(1) SPEEDY_BACKEND(1p)
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