Great Cheat Sheet add-on for any UNIX System!

Install the script with this line:
sudo curl https://cht.sh/:cht.sh > /usr/local/bin/cht.sh \
&& sudo chmod +x /usr/local/bin/cht.sh
Then try these for an example:
cht.sh tar
and
cht.sh perl/execute
and
curl cht.sh

It does what it says on the box!