10 Expert Ubuntu Tricks

"4. Add Directories To the Directory Stack With PUSHD

"While we're on the subject of directories, let's talk about the directory stack. Quite simply, this is a list of directories stored by bash. The currently-browsed directory always tops the list, but the list is otherwise empty until you add a new directory, which you can do using the pushd command. For example, pushd /usr/bin will add /usr/bin. It will also switch you to that directory, so you could use it instead of cd to navigate (the -n command option will let you add a directory but stay where you are). The dirs command will show the directory list (remember that the currently-browsed directory will always be at the top). popd deletes the topmost entry in the list, and switches you to the next in the list. Give the directory list a try. It can be very useful if you're administering a system and have to leap from directory to directory, and are inclined to forget where important things are."

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