A Quick Introduction to Unix/Wildcards
Wildcards[edit| edit source]
A wildcard is a character that can stand for all members of some class of characters. When you use a wildcard the computer systems substitutes the members of the class for the wildcard character. The examples below will make this clearer. We will use the command ls for illustration.
The * wildcard[edit| edit source]
The character * is a wildcard and matches zero or more character(s) in a file (or directory) name. For example, in your mytraining directory, you might type
% ls list*
This will list all files in the current directory starting with list.
You could type
% ls *list
This will list all files in the current directory ending with list.
The ? wildcard[edit| edit source]
The character ? will match exactly one character.
So ?ouse will match files like house and mouse, but not grouse.
An example use of this syntax is:
% ls ?list