What is a command line argument?
Many Unix commands allow command line arguments, that is, additional words or phrases that follow the name of the command and give more information about what to do.
For example, the
man command will give you information
about any Unix command. To get information about the
command, for example, you can type:
yourname@yourcomputer<21>% man date
A command can have any number of arguments. For example, the
cat command concatenates any number of
files. Suppose you want to display the contents of three files
addresses on your display screen.
This command would do it:
yourname@yourcomputer<22>% cat names dates addresses
John Shipman, email@example.com
Last updated: 1995/12/04 19:39:34 UT