Grep and Filter IP Address In Linux
Searching IP address in a text file or a console output may become cumbersome. This little command named grep will …
How To Shuffle/Randomize Array in PHP
There are different ways to randomly select elements of an array in PHP. But recurring elements are biggest problem most …
How To Run Parallel Jobs/Process/Programs in Bash
We generally run jobs in bash in serial order. Serial order means one command runs and after completion other command …
Linux Print History Command Without Line Numbers
Linux history command is used to get previously used commands by the current user. The default size for the history …
How To Create and Setup SSH Keys For Passwordless and Public Key Based Authentication In Linux?
Ssh is a protocol designed to make network connections between hosts secure. Ssh is a defacto standard for Linux and …