Migrating user accounts can be very troublesome when you have a large numbers of users. So, is always recommended to deploy active directory or LDAP to have a centralized authentication system. If your organization don’t have AD or LDAP and have large portion of users needed to transfer from 1 to another server. Don’t worry, [...]

I wrote a simple tax calculator with PHP, feel free to use it. This tool only supports Singapore Tax 2008. All calculations are based on the documents and formula from the official site (http://www.iras.gov.sg). Please report to me if you found any errors or miscalculations. Tax Calculator

Linux/Unix: Below is the commands to filter ifconfig to show only the eth0 IP address in Linux. Perl Script: Option 1 eth0 | grep “inet addr”| awk {‘print $2′} | perl -e ‘while(<>){ ($a,$b)=split/:/; print $b; }’ Option 2 ifconfig eth0 | grep “inet addr” | perl -e ‘while (<>) { ($inet, $addr, $ip, $others) [...]