It is an Simple and Portable Clock in text mode based on xterm and date command
It made during 15 minuts just for fun and as example of shell scripting for my students
clock is terminal version, and others is for xterm wrappers.
chmod +x *
for i in ls clock*
do
cp $i /usr/local/bin
done
Tested on Dedian Linux and FreeBSD.
With best wishes, Dmitry Podkorytov