Random: Add random string generator.

home/program/bash/module/Random.nix

@@ -1,5 +1,16 @@
 { ... }: {
 	text = ''
+		# Generate random string.
+		# Usage: random <LENGTH>
+		function random() {
+			local length="''${1}"
+			if [[ "''${length}" = "" ]]; then
+				help random
+				return 2
+			fi
+			head /dev/urandom | tr -dc A-Za-z0-9 | head -c''${length}
+		}
+
 		# Picks a random file or directory.
 		function random_file() {
 			local IFS=$'\n'
@@ -8,7 +19,7 @@
 			((total--))
 			local index=$(shuf -i 0-''${total} -n 1)
 
-			echo ''${dirs[$index]}
+			printf "%s" ''${dirs[$index]}
 		}
 	'';
 }