How to create and run a Bash script?

To create and run a Bash script, follow these steps:

  1. Open a text editor of your choice (e.g., Notepad, Sublime Text, Atom) on your computer.

  2. Start your Bash script with a shebang line to specify the interpreter that will be used to execute the script. For Bash, the shebang line should be:

    #!/bin/bash
  3. Write the code for your script, following the Bash scripting syntax. For example, create a basic script that greets the user:

    #!/bin/bash echo "Hello, world!"
  4. Save the file with a .sh extension, such as script.sh. Choose a meaningful name for your script.

  5. Open a terminal or command prompt on your computer.

  6. Navigate to the directory where you saved the Bash script using the cd command. For example:

    cd /path/to/script/directory/
  7. Make the Bash script executable by running the following command:

    chmod +x script.sh

    This command sets the execution permissions for the file.

  8. Run the Bash script by executing the following command:

    ./script.sh

    Replace script.sh with the actual name of your script.

  9. The Bash script will now run, and you should see any output or results specified in your code.

Note: Make sure you have Bash installed on your system before attempting to run Bash scripts. Most Linux distributions come with Bash preinstalled. For Windows users, you can use a Bash emulator or the Windows Subsystem for Linux (WSL) to run Bash scripts.