Functions contributed by Bart Schaefer

autobg

How to get your job stuck automatically in the background when you press ^Z.

export

A neat way of turning `export' (or some other command) into a multi-line command in which you can put comments.

per_directory_history

How to get shell history to work separately in each directory.

show

A way of re-using globbed files in later commands without re-doing the expansion.

text

A way of testing whether a file is really text.

two_line_prompt

How to split your prompt into two lines. Note that 3.1.6 as a %(l...) prompt escape which may be easier than this.