Write a Shell Script
Your shell is what lets you command your computer to do things, bash is the language to write those commands. You can write scripts that you excute from the command line to control your computer and automate things. We'll start with a simple script.
Open the Text Editor in Ubunutu and write the script below. You'll always need #!/bin/bash at the top of your shell scripts, it tells the system what type of script this is.
#!/bin/bash # clear the screen clear # make a variable with a phrase STRING = "Fresh screen!" # print the variable in Terminal echo $PRINT
Now save the file somewhere, your Home directory is fine. You can give it a name like, myscript, you don't need an extension.
Next, let's make this file easy to run by changing its mode, chmod, to executable, like an app.
sudo chmod +x myscript
Bam! It clears your Terminal screen and shows your message!