Bash: How to Echo Tab and Newline
While printing out result in bash, sometime we need to echo tab or newline for nice, gorgeous, maning looking format. The code below will NOT print tab space and newline echo “username\t password\n” In order to print tab and newline,…
How to Set VI or VIM Tab Space
By default, vi or vim editor tab space is 8 spaces. You can configure preferred space by the value below in .vimrc file set tabstop=2 set shiftwidth=2
Reverse DNS Lookup with Dig
Reverse DNS, in simple explanation it means that resolve your IP address into hostname. Nowaday it became a must have requirement for mail server’s IP address. It is also one of the method to determine your mail server IP is…
Short Cut Key to Lock Screen in Mac OSX
Other than locking screen with Expose, there is another way to lock you Mac OSX by shutting off the screen Ctrl + Shift + Eject The short cut key is to turn off your monitor screen. Before that, do make…
How to Extend Apple Mac OSX to External Monitor Only
Happy to get myself a 23″ LED monitor, never realize how convenient it is to use 1920 x 1080 resolutions, I can now multiple on 9 terminals at one time, crazy huh? Here is how you can extend your Mac…
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