PHP Code

Run the below given commands

1) sudo add-apt-repository ppa:mystic-mirage/komodo-edit
2) sudo apt-get update
3) sudo apt-get install komodo-edit

# apt-get install unrar

You can runa php file  by pressing  F5 key

ls -la  |grep ^-

ls -la -d */

or

ls -la  |grep ^d

:%s/str1/$str2/g will replace all the occurance of str1 with str2

Type the following

:45

Type any one of the following

set number  or set nu