toggles the synaptics touchpad on and off, or you can specify on and off

touchpad.fish

#!/usr/bin/env fish

# Usage: 
# run with no args to toggle between on and off
# pass a single arg "on" or "off" to do exactly what you'd expect
# drop it in ~/bin with a nice name (I have ~/bin/tp) or bind it to a hotkey or something like that

function turn-on
    echo "turning on"
    synclient touchpadoff=0
end

function turn-off
    echo "turning off"
    synclient touchpadoff=1
end

if test (count $argv) -eq 0
    set -l current (synclient | grep -i touchpadoff | awk "{print \$3}")
    
    if test $current -eq 0
        turn-off
    else
        turn-on
    end
else
    if test $argv = "on"
        turn-on
    else if test $argv = "off"
        turn-off
    else
        echo "Invalid argument: " $argv
    end
end

touchpad.sh

#!/usr/bin/env bash

# Usage: 
# run with no args to toggle between on and off
# pass a single arg "on" or "off" to do exactly what you'd expect
# drop it in ~/bin with a nice name (I have ~/bin/tp) or bind it to a hotkey or something like that

if test -z $@
then
    echo "no args, toggling"
    current=`synclient | grep -i touchpadoff | awk "{print \\$3}"`
    if test $current = 0
    then
        echo "turning off"
        synclient touchpadoff=1
    else
        echo "turning on"
        synclient touchpadoff=0
    fi
else
    if test $@ = "on"
    then
        echo "turning on"
        synclient touchpadoff=0
    elif test $@ = "off"
    then
        echo "turning off"
        synclient touchpadoff=1
    fi
fi