Linux

If you live in the Linux Shell/Terminal, aliases are a massive timesaver. Here’s how to create your own Bash aliases, with examples. What is an Alias in Bash/Linux Shell? An alias is a shortcut to a longer command. It’s similar to a keyboard shortcut – like the CTRL + C key combination is a shortcut to the copy command in many graphical operating systems (saving the time in dragging your mouse across the screen and clicking multiple menus to reach the command), aliases are shortcuts to longer terminal commands (saving time typing out the full … Read more

This article will outline how to delete files and directories in Linux with the rm command and give example usage. The rm Command in Linux Files and directories can be deleted from the shell/command line in Linux using the rm command. rm Command Syntax rm OPTIONS FILES Note that: OPTIONS is a list of options from the below table FILES is a list of files or directories (if the -r option is specified) to be removed Multiple files or directories can be specified, separated by spaces Options Here are the most commonly used options for … Read more

This article will walk you through moving files in Linux with the mv command, with examples and tips on moving files safely. mv Syntax Moving files is done using the mv command, which has the following syntax mv OPTIONS SOURCE DESTINATION Note that: OPTIONS is a list of options from the below table SOURCE is the path to the file you wish to move DESTINATION is the path to the destination you want to move the file 2 This can include a new file name or simply be the path to a … Read more

Bash/Shell scripts usually run sequentially until all of the code in the file has been executed. The exit command will exit the script before this based on conditions of your choosing. exit Command Syntax Here’s the syntax for the exit command, which can be used in Bash/Shell scripts: exit STATUS Note that: STATUS is an optional parameter that sets the exit status of the script The exit status tells other programs whether the script executed successfully or not It will default to either 0 or the exit status of the last command executed by … Read more

We’ve covered using variables in Bash previously – this article will explain Bash array variables and provide some example usage. What is an Array An array is a type of variable that can hold multiple values. It’s a list of values you can loop through and perform operations on each individual value. For example, you might want to perform an action on a list of files. By storing that list as an array, you can loop through the file names in it and perform the action on each … Read more

This article will explain what the $@ is in Bash and Bash/Shell scripting and how and why you might use it. The $@ variable is a special variable in Bash which holds the value of all of the command line arguments/parameters passed to the script. Command Line Arguments/Parameters in Bash Using command-line arguments/parameters in shell scripts is an important and useful feature, so we have a full article on it: This article follows on from our article on Command Line Arguments in Shell/Bash Scripts $@ Contains All Parameters/Arguments Passed to … Read more