UNIX ProTips

I realized today I wasn't getting mail notifications, and I hadn't set them up on this shell. So here are some things I do on my local machine that work here:

To get the shell to tell you when you have new mail, after command executions, add this to your .profile or your $ENV files (or other shell RC file) in your home directory.

export MAILCHECK=0

And, if you want, you can have a persistent notification when you have un-incorporated mail, or more specifically, when your $MAIL (/var/mail/$USER by default)` isn't empty.

PS1="$(test -s $MAIL ] && echo '* ')$PS1"

For maildir try this:

PS1="$(test -n "$(ls -A $HOME/Maildir/new)" && echo '* ')$PS1"

This works in /bin/ksh, I can't speak for other shells.

If anybody else has some quick tips they would like to share, I encourage them to edit this page.

Happy Unixing!