08-25-2012
system() takes one parameter, not two or three or four.
You can't put quotes in quotes like that. If you must, escape them like \".
I repeat. By doing this "in perl", you are actually doing this in lots and lots of shells. Every time you run system(), you are running /bin/sh. There is no purpose to using perl here.
Last edited by Corona688; 08-25-2012 at 04:19 PM..
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi,
Is it possible to delcare hashes in KSH the way we do it in Perl.
Like I want to declare something like:
fruits="Juicy"
fruits="healthy"
fruits="sour"
echo fruits
Ofcourse this piece of code does not work in KSH. Please let me know if there is a way of doing it in KSH.
... (2 Replies)
Discussion started by: tipsy
2 Replies
2. Shell Programming and Scripting
Hi frind,
i="1"
while
do
echo "i is $i"
data_file=$HYP_ROOT/import/efcextr$i.txt
echo "$data_file"
i=`expr $i + 1`
done
This is woring finly in ksh but not in ksh.
in ksh it showing error
i=1: Command not found
i: Undefined variable
Kindly help me ...why it is showing the error... (1 Reply)
Discussion started by: deep_kol
1 Replies
3. Programming
i have created a script to insert 100K rows into mysql db.
But the forst line where i declare the variable is giving error. I am new to mysql. Can anyone help me in this?
the script is
======================================
DECLARE
c INT(10) := 54;
BEGIN
WHILE c <... (4 Replies)
Discussion started by: amitranjansahu
4 Replies
4. Shell Programming and Scripting
I recently installed Cygwin on my windows vista to practice on Linux\unix commands.
I am unable to do a simple task of declaring variables on the command prompt
I am trying:
$ vech=Bus
$ echo $vech
bash: vech : command not found
What am I missing? Do i need to add something to .bashrc?
... (1 Reply)
Discussion started by: erora
1 Replies
5. UNIX for Dummies Questions & Answers
hi to all,
i am trying to declare a variable as an integer in unix shell script. i search the web for a way to do it but it doesnt work.
i tried "define -i" and "declare" but that doesnt work.
if somebody knows another way to declare a variable as integer please help me.
thank you (2 Replies)
Discussion started by: omonoiatis9
2 Replies
6. Shell Programming and Scripting
Hi
I've few shell scripts which are responsible for triggering the continuous builds for a specific module. Each shell script is for a Module. Shell script has some module specific settings in the beginning and then it triggers the builds (which are nothing but some combination of Java programs... (2 Replies)
Discussion started by: kgsrinivas
2 Replies
7. Shell Programming and Scripting
what I'm trying to do is ... need to drop tables w/ names like
ABC_NY_2001
ABC_ORD_2001
ABC_TX_2001
ABC_CL_2001
For this, I want to write a query "DROP TABLE ABC_var_2001".
now "var" should be either NY, ORD, TX or CL.
I'm new to programming so don't know how to create a variable w/ OR... (3 Replies)
Discussion started by: ramsowji
3 Replies
8. Shell Programming and Scripting
I am trying to declare a variable like this
#!/bin/csh -f
set c_arg = $a $b $c
However, since i need it to declare before declaring $a ,$b or $c.
As of now i am getting an error which says $a not defined.
Is it possible to define a variable c_arg w/o interpreting the values $a $b $c (2 Replies)
Discussion started by: animesharma
2 Replies
9. Shell Programming and Scripting
Hi, guys, i have a script i inherited from a coworker but i'm not perl savy. The script works but i would like it to work better. I want to run this command
./ciscomgrtest.pl -r "show version" -h hosts.router
and have the script goto each router in the hosts.router file and run the command... (2 Replies)
Discussion started by: whipuras
2 Replies
10. Shell Programming and Scripting
If I am running a bash command, and some awk getting the ethernet adapter on the local machine. It works fine. But if I will run it from the remote, it is EMPTY on echo and throwing error in grep.
Thank you
This work perfectly fine
$ f=`/sbin/ip a|grep 127.127 | awk '{print $NF }' ` ; ip... (2 Replies)
Discussion started by: kenshinhimura
2 Replies
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)