Didn't work for me.

[redpola]

Used as-is, and...

pi@raspberrypi:~ $ sudo bash piMote.sh all on
piMote.sh: line 48: echo: write error: Device or resource busy
piMote.sh: line 50: /sys/class/gpio/gpio27/direction: No such file or directory
piMote.sh: line 59: echo: write error: Operation not permitted
piMote.sh: line 60: echo: write error: Operation not permitted
piMote.sh: line 61: echo: write error: Operation not permitted
piMote.sh: line 62: /sys/class/gpio/gpio27/value: No such file or directory
piMote.sh: line 69: echo: write error: Operation not permitted
piMote.sh: line 71: echo: write error: Operation not permitted
piMote.sh: line 74: echo: write error: Operation not permitted
piMote.sh: line 75: echo: write error: Operation not permitted
piMote.sh: line 76: echo: write error: Operation not permitted
piMote.sh: line 77: /sys/class/gpio/gpio27/value: No such file or directory

[redpola]

Hm, maybe because my pins aren't the same as yours?

pi@raspberrypi:~ $ ls -l /sys/class/gpio/
total 0
--w--w---- 1 root gpio 4096 Jan 2 10:34 export
lrwxrwxrwx 1 root root 0 Jan 2 10:22 gpio17 -> ../../devices/platform/soc/20200000.gpio/gpiochip0/gpio/gpio17
lrwxrwxrwx 1 root root 0 Jan 2 10:22 gpio22 -> ../../devices/platform/soc/20200000.gpio/gpiochip0/gpio/gpio22
lrwxrwxrwx 1 root root 0 Jan 2 10:22 gpio23 -> ../../devices/platform/soc/20200000.gpio/gpiochip0/gpio/gpio23
lrwxrwxrwx 1 root root 0 Jan 2 10:22 gpio24 -> ../../devices/platform/soc/20200000.gpio/gpiochip0/gpio/gpio24
lrwxrwxrwx 1 root root 0 Jan 2 10:22 gpio25 -> ../../devices/platform/soc/20200000.gpio/gpiochip0/gpio/gpio25
lrwxrwxrwx 1 root gpio 0 Nov 28 13:41 gpiochip0 -> ../../devices/platform/soc/20200000.gpio/gpio/gpiochip0
--w--w---- 1 root gpio 4096 Nov 28 13:41 unexport