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Perl UNIX

CPAN – Perl Command Line

CPAN – Perl Command Line There are several ways to get Perl modules from CPAN installed on your unix-based system. Keep in mind that there is always more than one way to do it with Perl, and this is no different. Before embarking upon any installation, it’s a good idea to download the module, unzip […]

Apache UNIX

Install Google Mod Speed on Ubuntu / Debian

Install Google Mod Speed on Ubuntu / Debian mod_pagespeed is an open-source Apache module that automatically optimizes web pages and resources on them. It does this by rewriting the resources using filters that implement web performance best practices. Webmasters and web developers can use mod_pagespeed to improve the performance of their web pages when serving […]

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Oracle Solaris 11 Overview

Oracle Solaris 11 Overview Production ready release delivering leading operating system technology innovation to improve availability, efficiency, scalability, performance, and security in the data center. What’s New Documentation System Requirements FAQ Oracle Solaris 11 Express raises the bar on the functionality introduced in Oracle Solaris 10, continuing Oracle’s leadership for providing the best choice for […]

Perl

Perl – Execute Command With Timeout

Perl – Execute Command With Timeout [perl] my $command_to_check = “$SSH_CON $host $SSH_CMD”; if (! execute_command($command_to_check)) { next; } sub execute_command($) { ### Executes a command with timeout ### Returns 0 if fails ### Returns 1 on success my $command=shift; my $timeout=30; eval { local $SIG{ALRM} = sub{die;}; my($oalarm) = alarm($timeout); $result=`$command 2>&1`; if ($? […]

Mac OSX UNIX

Search String in Directory – UNIX

Search String in Directory – UNIX How to search for a string in a selection of files (-exec grep …). [bash] find . -exec grep “searchstring” ‘{}’ \; -print [/bash] [bash] find . -exec grep “searchstring” ‘{}’ \; -ls [/bash] This command will search in the current directory and all sub directories. All files that […]

Perl UNIX

Date/Time in a Timestamp format – Perl

Date/Time in a Timestamp format – Perl [perl] use Date::Manip; #### – Get DATE / TIME in correct format – ########## my $day= strftime “%d”, localtime; my $month= strftime “%m”, localtime; my $year = strftime “%Y”, localtime; my $now = localtime(time()); #################################################### $form_date_start = “$year/$month/$day 06:00:00”; [/perl]

Perl

Flush perl‚ Äôs print buffer – $|=1

Flush perl‚Äôs print buffer – $|=1 If you put a print statement inside of a loop that runs really really quickly, you won‚Äôt see the output of your print statement until the program terminates. The solution to this problem is to ‚Äúflush‚Äù the output buffer after each print statement. Where $| is non zero, it […]