2.3. Programs

A program is a file you can run in order to achieve results. Running a program is also known as executing it and so long as you have permission to execute a file the computer will attempt to when asked. Example Programs:

• /bin/hostname

• /bin/ls

• /usr/bin/wget

A program has optional inputs which are specified on the command line as arguments. These change the behaviour of the program.

• /bin/hostname