rishabh, Author at PODTECH

Perl, PHP

GET or POST – Secure

GET or POST – Secure GET is NOT Secure GET is not a secure method of sending data. Don’t use it for forms that send password info, credit card data or other sensitive information. Since the data is passed through as part of the URL, it’ll show up in the web server’s logfile (complete with […]

Perl

Perl – Trim Text, Trim String

Perl – Trim Text, Trim String Left trim- ltrim or lstrip removes white spaces from the left side of a string: [perl] $str =~ s/^\s+//; [/perl] Right trim – rtrim or rstrip removes white spaces from the right side of a string: [perl] $str =~ s/\s+$//; [/perl] Trim Both [perl] $str =~ s/^\s+|\s+$//g [/perl] [perl] […]

Perl

Recursively Expand a NIS Netgroup

Recursively Expand a NIS Netgroup @results=expand_ng(); # Given a netgroup, will return a list of members. Will recurse # netgroups if the $recurse flag is set sub expand_ng { my($netgroup)=@_; my(@returnng); my($ng)=`ypmatch $netgroup netgroup`; $? != 0 and return; #Don't continue for duff netgroups my($value); $ng =~ s/\s+/ /g; #Compress whitespace $ng =~ s/\s+,/,/g; #Remove […]

UNIX

RedHat vs Ubuntu – Useful Package Commands

RedHat vs Ubuntu – Useful Package Commands Task Red Hat/Fedora Ubuntu Refresh list of available packages Yum refreshes each time it’s used apt-get update Install a package from a repository yum install package_name apt-get install package_name Install a package file yum install package.rpm rpm -i package.rpm dpkg –install package.deb Remove a package rpm -e package_name […]

PHP

Given a size in KB, try to return a more readable MB, GB or TB answer string

Given a size in KB, try to return a more readable MB, GB or TB answer string function readable_size_for_kb($mykb) { if ( $mykb > 1073741824 ) { return sprintf("%5.1f TB",$mykb / 1024 / 1024/1024); } elseif ( $mykb > 1048576 ) { return sprintf("%5.1f GB",$mykb / 1024 / 1024); } elseif ( $mykb > 1024 […]

PHP

Readable Time – PHP, given a unix timestamp, return a readable time

Readable Time – PHP, given a UNIX timestamp, return a readable time # Given a unix timestamp, returns in readable time ie "1 day, 7 hours, 23 minutes, 2 seconds" function readable_time($timestamp, $num_times = 2) { //this returns human readable time when it was uploaded (array in seconds) $times = array(31536000 => 'year', 2592000 => […]

rishabh

GET or POST – Secure

Perl – Trim Text, Trim String

Recursively Expand a NIS Netgroup

RedHat vs Ubuntu – Useful Package Commands

Given a size in KB, try to return a more readable MB, GB or TB answer string

Readable Time – PHP, given a unix timestamp, return a readable time

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