Here are some handy tips to keep in mind when writing your shell scripts in Linux. Shell scripts are a versatile way to automate your workflows in Linux (and MacOS, and now Windows, with the Windows Subsystem for Linux). Shell scripting syntax and behaviour does… Read More »LinuxScrew’s Linux Shell/Bash Scripting Tips
Linux Tip: Use visudo to Edit the sudoers File to Avoid Costly Mistakes This article will show you how to use visudo to edit the sudoers file to grant root access to users – and protect against making mistakes that could lock you out of your Linux system forever.… Read More »Linux Tip: Using visudo to Avoid Costly Mistakes
This article will show you how to split a string at a given delimiter in Bash/Shell scripts and show some examples. Splitting strings is a handy function to have available when crafting your scripts. CSV (Comma Separated Values) is a common format in which data… Read More »How to Split a String in Bash/Shell Scripts, With Examples
We’ve zipped files from the Linux command line; now, let’s unzip them. This short article will show you how. Zipping Files Zipping files is common parlance for compressing one or more files or directories into a .zip file – a compressed file format. We cover how to do that in… Read More »How to Unzip Files in Linux with the unzip Command
This article will quickly run through the ways PHP can be used from the Bash shell/command line, with examples. PHP is usually used for generating content to be served on the web – but it can also be used from the command line. This is… Read More »How to Execute PHP from the Command Line (Bash/Shell)
This tutorial will show you how to set environmental variables in Bash/Shell scripts using the export keyword. Generally, variables declared in Bash/Shell scripts exist only within the scope of that running Bash/Shell script. To make them available elsewhere, they can be set as an environmental variable… Read More »Bash Scripts Set Environmental Variables with EXPORT [HowTo]
This article will show you how to use a Heredoc (Here Document) in Bash/Shell scripts to work with multi-line text. Heredocs are most useful for accepting multi-line input- the user can enter a line of text, press enter, then enter the next line, and so… Read More »HEREDOC (Here Documents) in Bash and Linux Shell – Tutorial
This article will show you some practical examples for using the printf command in the Bash/Shell on Linux. The printf command outputs text much like the echo command does – but it allows for more control over the output formatting. It’s a useful tool for generating your own formatted… Read More »Using the printf Command in Bash/Shell, With Examples
This short tutorial will teach you to prompt the user for typed input from your Bash/Shell scripts. It’s easy to learn, easy to do, so read on! The read Command To read user input in shell scripts, use the aptly named read command. It has the following syntax: read… Read More »How to Prompt for User Input in Bash/Shell Scripts
This article will show you how to run commands in the Linux (including Ubuntu) shell background. This is useful when working remotely via SSH. Say you’re connected remotely via SSH to a remote computer, and you want to execute a lengthy task. While the task… Read More »How To Run Commands in the Background [Linux/Ubuntu]
