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Shell Programming and Scripting
perl script help
Post 302320575 by namishtiwari on Thursday 28th of May 2009 10:56:51 AM
05-28-2009
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10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
I have a question regarding running perl in the current process.
I shall demonstrate with an example.
Look at this.
sh-2.05b$ pwd
/tmp
sh-2.05b$ cat test.sh
#! /bin/sh
cd /etc
sh-2.05b$ ./test.sh
sh-2.05b$ pwd
/tmp
sh-2.05b$ . ./test.sh
sh-2.05b$ pwd
/etc
sh-2.05b$
So... (10 Replies)
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2. Shell Programming and Scripting
I am trying to use a script to replace the header of each file, whose filename are stored within the array $test, using the sed command within a Perl script as follows:
$count = 0;
while ( $count < $#test )
{
`sed -e 's/BIOGRF 321/BIOGRF 332/g' ${test} > 0`;
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3. Shell Programming and Scripting
so in unix this command works works and shows me a list of directories
find . -name \*.xls -exec dirname {} \; | sort -u | > list.txt
but when i try running a perl script to run this command
my $query = 'find . -name \*.xls -exec dirname {} \; | sort -u | > list.txt';... (2 Replies)
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4. Shell Programming and Scripting
Perl :How to print the o/p of a Perl script on console and redirecting same in log file @ same time.
How can i print the output of a perl script on a unix console and redirect the same in a log file under same directory simultaneously ?
Like in Shell script, we use tee, is there anything in Perl or any other option ? (2 Replies)
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5. Shell Programming and Scripting
Hi all,
Not sure if this should be in the programming forum, but I believe it will get more response under the Shell Programming and Scripting FORUM.
Am trying to write a customized df script in Perl and need some help with regards to using arrays and file handlers.
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6. Shell Programming and Scripting
I am trying to run a perl script which needs input arguments from a parent perl script, but doesn't seem to work. Appreciate your help in this regard.
From parent.pl
$input1=123;
$input2=abc;
I tried calling it with
system("/usr/bin/perl child.pl $input1 $input2");
and
`perl... (1 Reply)
Discussion started by: grajp002
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7. Shell Programming and Scripting
Hi Folks,
I have 2 perl scripts and I need to execute 2nd perl script from the 1st perl script in WINDOWS.
In the 1st perl script that I had, I am calling the 2nd script
main.pl
===========
print "This is my main script\n";
`perl C:\\Users\\sripathg\\Desktop\\scripts\\hi.pl`;
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8. Shell Programming and Scripting
Hi All,
I am aware that html tags can be embedded in cgi script as below.. In the same way is it possible to embed the below javascript in perl cgi script ??
print("<form action="action.htm" method="post" onSubmit="return submitForm(this.Submitbutton)">");
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9. Shell Programming and Scripting
Not sure what I am doing wrong here, but I can print the list with no issue. Just a blank screen with the 'do'.
#!/usr/bin/perl
open FILE, "upslist.txt";
while ($line=<FILE>){
if ($line=~/^(.*?),(.*?)$/){
#print "ups:$1 string:$2\n";
do 'check_snmp_mgeups-0.1.pl -H $1 -C $2';
} ... (1 Reply)
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10. Programming
I have reviewed many examples on-line about running another process (either PERL or shell command or a program), but do not find any usefull for my needs way. (Reviewed and not useful the system(), 'back ticks', exec() and open())
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Discussion started by: alex_5161
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LEARN ABOUT DEBIAN
pperl
PPERL(1p) User Contributed Perl Documentation PPERL(1p) NAME
PPerl - Make perl scripts persistent in memory SYNOPSIS
$ pperl foo.pl DESCRIPTION
This program turns ordinary perl scripts into long running daemons, making subsequent executions extremely fast. It forks several processes for each script, allowing many processes to call the script at once. It works a lot like SpeedyCGI, but is written a little differently. I didn't use the SpeedyCGI codebase, because I couldn't get it to compile, and needed something ASAP. The easiest way to use this is to change your shebang line from: #!/usr/bin/perl -w To use pperl instead: #!/usr/bin/pperl -w WARNINGS
Like other persistent environments, this one has problems with things like BEGIN blocks, global variables, etc. So beware, and try checking the mod_perl guide at http://perl.apache.org/guide/ for lots of information that applies to many persistent perl environments. Parameters $ pperl <perl params> -- <pperl params> scriptname <script params> The perl params are sent to the perl binary the first time it is started up. See perlrun for details. The pperl params control how pperl works. Try -h for an overview. The script params are passed to the script on every invocation. The script also gets any current environment variables, the current working directory, and everything on STDIN. Killing In order to kill a currently running PPerl process, use: pperl -- -k <scriptname> You need to make sure the path to the script is the same as when it was invoked. Alternatively look for a .pid file for the script in your tmp directory, and kill (with SIGINT) the process with that PID. ENVIRONMENT
pperl uses the PPERL_TMP_PATH environment variable to determine the directory where to store the files used for inter-process communication. By default, the subdirectory .pperl of the user's home directory is used. BUGS
The process does not reload when the script or modules change. $^S is not represented identically with respect to perl, since your script will be run within an eval block AUTHOR
Matt Sergeant, matt@sergeant.org. Copyright 2001 MessageLabs Ltd. SEE ALSO
perl. perlrun. perl v5.14.2 2011-11-15 PPERL(1p)