added clean command

pman.sh

@@ -94,6 +94,12 @@ case "$command_args" in
       su_needed=true
     fi
     ;;
+  "clean")
+    command_args="-Scc"
+    if [ "$command" = "pacman" ]; then
+      su_needed=true
+    fi
+    ;;
   *)
     if [ "$more_arguments" = "true" ]; then
       echo "Invalid command: \"$command $command_args\""
@@ -112,6 +118,7 @@ case "$command_args" in
       echo "  upgrade    - pacman -Syu      | upgrades your system"
       echo "  remove     - pacman -Rs       | remove packages & dependencies"
       echo "  purge      - pacman -Rns      | remove packages, dependencies & conf"
+      echo "  clean      - pacman -Scc      | remove all package files & trash"
       echo "  config     - /etc/pacman.conf | edits pacman configuration"
       exit 1
     fi