Add existing scripts

rainbow.sh

@@ -0,0 +1,17 @@
+#!/usr/bin/env bash
+# Print a message in each of the 8 ANSI terminal colors
+
+rainbow() {
+    local message="$1"
+    local reset='\e[0m'
+    for ((color=31; color<=37; color++))
+    do
+        color_code="\\e[0;${color}m"
+        if [ -t 1 ]; then
+            printf "${color} - ${color_code}${message}${reset}\n"
+        else
+            printf "${color} - ${message}\n"
+        fi
+    done
+}
+