--- /dev/null
+#!/bin/bash
+# group_perm: traverses directory trees and sets the permissions to allow the
+# associated group "rw" on files and "rwx" on directories.
+
+declare -a args=("$@")
+
+if [ -z "${args[*]}" ]; then
+ echo "no arguments provided."
+ exit 1;
+fi
+
+for (( i=0; i < ${#args[*]}; i++ )); do
+ current="${args[i]}"
+# echo "curr is $current"
+ find -L "$current" -type d -exec chmod u+rwx,g+rwx {} ';'
+### >/dev/null 2>/dev/null
+ find -L "$current" -type f -exec chmod u+rw,g+rw {} ';'
+### >/dev/null 2>/dev/null
+done
+