25 Bash Script Examples

1. What is bash shell scripting explain with examples?
2. How do I create a simple bash script?
3. How do I write a bin bash script?
4. What can I do with bash scripting?
5. What is in bash script?
6. What's the difference between Bash and Shell?
7. How do you name a bash script?
8. How do you write a simple script?
9. Is bash script a programming language?
10. How do I run a bash script?
11. How do I start a shell script?
12. How do I make a bash script executable from anywhere?

What is bash shell scripting explain with examples?

Bash (AKA Bourne Again Shell) is a type of interpreter that processes shell commands. A shell interpreter takes commands in plain text format and calls Operating System services to do something. For example, ls command lists the files and folders in a directory. Bash is the improved version of Sh (Bourne Shell).

How do I create a simple bash script?

How to Create/Write a Simple/Sample Linux Shell/Bash Script

1. Step 1: Choose Text Editor. Shell scripts are written using text editors. ...
2. Step 2: Type in Commands and Echo Statements. Start to type in basic commands that you would like the script to run. ...
3. Step 3: Make File Executable. Now that the file has been saved, it needs to be made executable. ...
4. Step 4: Run the Shell Script.

How do I write a bin bash script?

To create a bash script, you place #!/bin/bash at the top of the file. To execute the script from the current directory, you can run ./scriptname and pass any parameters you wish.

What can I do with bash scripting?

Bash scripts can be used for various purposes, such as executing a shell command, running multiple commands together, customizing administrative tasks, performing task automation etc. So knowledge of bash programming basics is important for every Linux user.

What is in bash script?

A Bash script is a text file containing a series of commands. Any command that can be executed in the terminal can be put into a Bash script. Any series of commands to be executed in the terminal can be written in a text file, in that order, as a Bash script.

What's the difference between Bash and Shell?

Shell is an interface between a user and OS to access to an operating system's services. It can be either GUI or CLI (Command Line interface). sh (Bourne shell) is a shell command-line interpreter, for Unix/Unix-like operating systems. ... Bash (Bourne again shell) is a shell replacement for the Bourne shell.

How do you name a bash script?

In bash you can get the script file name using $0 . Generally $1 , $2 etc are to access CLI arguments. Similarly $0 is to access the name which triggers the script(script file name). If you invoke the script with path like /path/to/script.sh then $0 also will give the filename with path.

How do you write a simple script?

How to Write a Script – Top 10 Tips

1. Finish your script.
2. Read along as you watch.
3. Inspiration can come from anywhere.
4. Make sure your characters want something.
5. Show. Don't tell.
6. Write to your strengths.
7. Starting out - write about what you know.
8. Free your characters from cliché

Is bash script a programming language?

Bash is a powerful programming language, one perfectly designed for use on the command line and in shell scripts. This three-part series explores using Bash as a command-line interface (CLI) programming language.

How do I run a bash script?

Make a Bash Script Executable

1. 1) Create a new text file with a . sh extension. ...
2. 2) Add #!/bin/bash to the top of it. This is necessary for the “make it executable” part.
3. 3) Add lines that you'd normally type at the command line. ...
4. 4) At the command line, run chmod u+x YourScriptFileName.sh. ...
5. 5) Run it whenever you need!

How do I start a shell script?

Let us understand the steps in creating a Shell Script:

1. Create a file using a vi editor(or any other editor). Name script file with extension . sh.
2. Start the script with #! /bin/sh.
3. Write some code.
4. Save the script file as filename.sh.
5. For executing the script type bash filename.sh.

How do I make a bash script executable from anywhere?

2 Answers

1. Make the scripts executable: chmod +x $HOME/scrips/* This needs to be done only once.
2. Add the directory containing the scripts to the PATH variable: export PATH=$HOME/scrips/:$PATH (Verify the result with echo $PATH .) The export command needs to be run in every shell session.