etigui · October 14, 2020 12:35
diff --git a/random.sh b/random.sh
 #!/bin/bash

 function rand() {
    cat /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w $1 | head -n 1
 }

 echo $(rand 20)

 ## OUTPUT
 # w4QS0zoS9yUUAEc6dlMJ
	#!/bin/bash

	function rand() {
	cat /dev/urandom \| tr -dc 'a-zA-Z0-9' \| fold -w $1 \| head -n 1
	}

	echo $(rand 20)

	## OUTPUT
	# w4QS0zoS9yUUAEc6dlMJ