# save my code in your home directory
(/home/joe/MyScripts/tap_enable.sh),
# set it to executable
## (nautilus or
### chmod a+x /home/joe/MyScripts/tap_enable.sh
# try to run it from the shell:
./home/joe/MyScripts/tap_enable.sh
# If it works go to system > preference > Keyboard Shortcut + click add give+ a name and full path (/home/joe/MyScripts/tap_enable.sh)
# and bind it to a key.
#this should do it