Tag: Linux

Find the IP address of all the active interfaces. ifconfig | egrep -o ‘^[a-z0-9]{1,12}|inet addr:[0-9.]+’

If you use the diff command, you will be able to see the difference between the files as shown below:…

Find where the command executable is located… whereis perl

This command takes an input file and substitutes strings inside it with the parameters passed, similar to substituting for variables….

This will let you run a linux command based on the success of anther command. Note: This will only work…

Create a command that will return the pid of the given command string.. #!/bin/sh ps aux|grep 1|head -n1|awk ‘{print2}’

A Linux command to sort the contests of a file sort file.ext [tags][/tags]

I run these commands when I am off for lunch or something… sudo /bin/bash /usr/sbin/makewhatis -w sudo /usr/bin/updatedb #These two…

To access net on a guest OS installed within VirtualBox, you have to enable bridging. This is what I did……

A perl script to stop crond if mysqld is down #!/usr/bin/perl # See if MySQL server is alive or not…