These are two utilities I use when I work to LaTeX papers:

• the first one is an utility to recompile latex files in background and refresh dvi viewer automatically
• the second one is a simpler perl script just invoking a “make all” when one among a set of files has been modified.

Wrapper to access Dept. email from outside when just port 22 is open.

Wrapper (a2ps) to produce nice code listings: this is a perl script wrapping a2ps to produce nice (I hope), customizable listings out of source code files.