Add delete user example script

Adding delete user script. A temporary fix for cmsh deletes only /home/USER when delete the user.

prod_rmq_agents/examples/delete_user.sh

+#!/bin/sh
+
+username="$1"
+path_to_db="/cm/shared/rabbitmq_agents/prod_rmq_agents/.agent_db/user_reg.db"
+
+usage() {
+  echo "Usage: $0 USERNAME"
+}
+
+if [[ "$EUID" -ne 0 ]]; then
+  echo "This script must be run as root!"
+  exit 1
+fi
+
+if [ -z "$username" ]; then
+  usage
+  exit 1
+fi
+
+if id "$username" &>/dev/null; then
+  echo "Deleting user: ${username}"
+
+  echo "cmsh -c 'user use ${username}; remove -d; commit;'"
+  cmsh -c "user use ${username}; remove -d; commit;"
+
+  echo "sqlite3  $path_to_db \"delete from users where username=\"$username\""
+  sqlite3 $path_to_db "delete from users where username=\"$username\""
+
+  echo "rm -r /data/user/${username}"
+  rm -rf "/data/user/${username}"
+
+  echo "rm -r /data/scratch/${username}"
+  rm -rf "/data/scratch/${username}"
+
+else
+  echo "user: ${username} not found."
+  exit 1
+fi