Shell script
Imagine a shell script like a recipe for a cake. Just like how you need certain ingredients to make a cake, a shell script contains instructions for the computer to carry out specific tasks.
The shell is like the kitchen where you put all the ingredients together. The shell script is a set of commands written in a file that tells the shell what to do. The shell script is executed when you run it just like how you bake a cake to get a final product.
For example, let's pretend that you want to make a shell script that will greet you every time you run it. You need to write a script that tells the shell to display the message "Hello, [your name]" on the screen.
To do that, you would open a text editor and write something like this:
```
#!/bin/bash
echo "Hello, [your name]"
```
This code is telling the shell to use "bash" (a type of shell) to execute the script. The `echo` command is a way to print text on the screen. In this case, it tells the shell to print out the message "Hello, [your name]" where [your name] is the name that you put in.
Once you save the file as "greeting.sh", you can go to your terminal (like a kitchen tool) and type `./greeting.sh` to run your script. The shell will follow the instructions in the script and display the message "Hello, [your name]" on the screen.
A shell script can do many different things like move, delete, and copy files, install software, and run programs. It's like having a recipe that can do all sorts of things instead of just making a cake. By writing shell scripts you can automate repetitive tasks, saving you time and effort.
The shell is like the kitchen where you put all the ingredients together. The shell script is a set of commands written in a file that tells the shell what to do. The shell script is executed when you run it just like how you bake a cake to get a final product.
For example, let's pretend that you want to make a shell script that will greet you every time you run it. You need to write a script that tells the shell to display the message "Hello, [your name]" on the screen.
To do that, you would open a text editor and write something like this:
```
#!/bin/bash
echo "Hello, [your name]"
```
This code is telling the shell to use "bash" (a type of shell) to execute the script. The `echo` command is a way to print text on the screen. In this case, it tells the shell to print out the message "Hello, [your name]" where [your name] is the name that you put in.
Once you save the file as "greeting.sh", you can go to your terminal (like a kitchen tool) and type `./greeting.sh` to run your script. The shell will follow the instructions in the script and display the message "Hello, [your name]" on the screen.
A shell script can do many different things like move, delete, and copy files, install software, and run programs. It's like having a recipe that can do all sorts of things instead of just making a cake. By writing shell scripts you can automate repetitive tasks, saving you time and effort.
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