Changing Directories with cd
Changing directories is surely something that has no options, right? Not so.
cd is actually more flexible than most people realize. Unlike most of the other commands here,
cd is not a command in itself—it is built in to
bash (or whichever shell interpreter you are using), but it is still used like a command.
The most basic usage of
cd is this:
matthew@seymour:~$ cd somedir
That looks in the current directory for the
somedir subdirectory and then moves you into it. You can also specify an exact location for a directory, like this:
matthew@seymour:~$ cd /home/matthew/stuff/somedir
The first part of
cd’s magic lies in the characters (- and ~, a dash and a tilde). The first means “switch to my previous directory,” and ...