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How To Write Bash Scripts on Linux – Guide
Shell scripts are an important part of process automation on Linux. Scripts allow you to write a series of commands to a file and then run them. This saves you time because you don’t have to rewrite certain commands over and over again. You can efficiently perform daily tasks and even schedule them to run automatically. You can also specify that certain scripts run on startup, such as displaying a certain message when a new session is started, or setting certain environment variables.
A bash script is a series of commands that are written to a file. These are read and executed by the bash program. The program runs line by line. For example, you can navigate to a specific path, create a folder, and start a process in that folder from the command line. You can perform the same sequence of steps by storing the commands in a Bash script and running it. You can run the script as many times as you like.
How to Write Bash Scripts on Linux
Writing a Bash Script
Adding the “shebang”
adding comments
adding code
The Bash interpreter reads each line and executes the update command followed by the update command. The -y tag automatically responds Yes to any prompt brought up up by the two instructions. When completed, the program prints Done! to the console.
Running the Bash Script
Final note
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