How to Define Your Own System Command Scripts

• Open a konsole window.
• Change to the ~/bin (i.e., /home/vunetid/bin) directory: cd ~\bin
• List the ~/bin directory to see if a shell script named zzz is already present: ls
  • It's a good idea to check that the system doesn't already contain such a command: which zzz
• If zzz is listed in the contents of the directory, open zzz in a text editor: pico zzz
  • If zzz is not present, open a new file to be named zzz in a text editor: pico zzz
• Type the commands you want in your bash script. Use this as the first line of the file: #!/bin/sh
• Exit pico by typing Ctrl+X to save the zzz file (answer Yes to saving changes, and keep the name of the file as zzz).
• At the command prompt type the following to make zzz executable: chmod +x
• Change your $PATH to include the ~/bin directory.
  • Change to your 'home' directory: cd ~
  • Open your .bash_profile (a hidden file) in a text editor: pico .bash_profile
  • In the text editor, type a new line at the end of the file: export PATH=$PATH:~/bin if this line is not already in .bash_profile
  • Exit pico by typing Ctrl+X to save your .bash_profile file (answer Yes to saving changes, and keep the name of the file as .bash_profile).