Displaying private IP addresses You can determine the IP address or addresses of your Linux system by using the hostname, ifconfig, or ip commands. To display the IP addresses using the hostname command, use the -I option. In this example the IP address is 192.168.122.236. The ifconfig command can also be used to display the … Read more
To run the most recent command that begins with a given string, use an exclamation mark followed by that string. For example, to run the last command that started with a “d”, type “!d“. Specify as much of the string to make it unique. If you have several commands in your recent history that begin … Read more
Time and time again I find myself needing to run another command against the last item on the previous command line. To access that item in your current command, use “!$“. When I’m done with a file, I delete it, as in this example. jason@linuxsvr:~$ mkdir restored jason@linuxsvr:~$ cd !$ cd restored jason@linuxsvr:~/restored$ unzip ~/Downloads/backup.zip … Read more
For more tips and tricks like this, be sure to read Command Line Kung Fu. You can quickly increase your productivity at the Linux command line by using tab completion. Tab completion can save you keystrokes, prevent spelling mistakes, and guide you through complex commands. It works with file names, commands, command arguments, and more. … Read more
Comments and blank lines can be great. They provide context and can make configuration files easier to read. So why in the world would you want to get rid of them? Well, to aid in troubleshooting! Can you imagine paging through a 1,200 line configuration file looking for anything that might be out of place? … Read more
In this article, you will learn what Linux is, where Linux came from, what a Linux distribution is and some of the reasons that Linux is favored for certain applications and projects over other operating systems. Linux is an Operating System First and foremost, Linux is an operating system. An operating system is simply a … Read more