There's more than one way to do it, in Perl.
The dot (".") is the string concatenation operator.
Code:
#!/usr/bin/perl
use strict;
use warnings;
use POSIX qw(strftime) ;
my $TimeStamp=strftime "%Y%m%d",localtime ;
system('wget -q --no-check-certificate -O /tmp/DataFile_'.$TimeStamp.' "https://foobar.com/html"') ;
This User Gave Thanks to durden_tyler For This Post:
if ( system ("/bin/cat $File1 >> $File2") ) {
print("#WARNING RAISED : /bin/cat File1 >> File2 - FAILURE!\n"); } I came across this code, would appreciate if someone can tell me if my understanding is correct?
the perl code tell the system to cat file 1 into file 2, if command fails, print... (4 Replies)
I need a non-perl (bash) way to strip the path from a list of "find" results. Below is the perl version which I could use, if I could figure out how to call the script with a variable (like in sh, $1 is the variable passed in ./script variable)
$file = "/path/to/file.txt";
# How do I... (2 Replies)
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
FROM_DATE="06/05/2008"
TO_DATE="07/05/2008"
"perl -ne ' print if ( $_ >="$FROM_DATE" && $_ <= "$TO_DATE" ) ' filename"
filename has... (10 Replies)
I am new to scripting in Perl so I have a dumb question.
I know I can call system commands using
system("date");
But I am not able to:
1. set its output to a variable
2. run in quiet mode(no output to the screen)
The examples i have
#!/usr/bin/perl
print `date +\%y\%m\%d.\%H\%M`;... (5 Replies)
Hi Everyone,
Can anyone help me how do i call hash variable in to sql query in perl. Please see the script below
i have defined two Hash %lc and %tab as below
$lc{'REFF'}='V_RES_CLASS';
$lc{'CALE'}='V_CAP_CLASS';
$lc{'XRPD'}='V_XFMR_CLASS';
$tab{'V_RES_CLASS'}='V_MFR_SERS';... (6 Replies)
HI All,
I have a script that needs to find out a list of files in a directory, i pass the search parameter as an argument.
opendir ( DIR, $dir ) || die "Error in opening dir $dirname\n";
@filename1 = (grep {/$File_pattern/ } readdir(DIR));
The problem is my file patterns are like... (1 Reply)
Hi Friends,
I'm calling 'sed' command inside one perl script, which is to list directory names which are having some date value as their names (in the form YYYYMMDD) with in the range (start and end date).
#!/usr/bin/perl -w
use strict;
use warnings;
my $DATA = "/export/home/ganapa";
my... (5 Replies)
Hi. I am on a Solaris box and have an awk script which calls perl via the command line:
timeTester="'"`perl -e 'use Time::Local;my $time = timelocal(10,10,10,10,10,2011
);print $time'`"'"
But I want to pass awk variables into this call. These are the example awk variables:
secondField = 10... (0 Replies)
Hi All,
I need to pass a variable from bash script to perl script and in the perl script i am using those variables in the sql query but its giving
error :
Use of uninitialized value $ENV{"COUNTRYCD"} in concatenation (.) or string at /GIS_ROOT/custom/tables/DBread_vendor.pl line 50.
Can ... (6 Replies)
Discussion started by: NileshJ
6 Replies
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)
12-21-2015
