Consolidate bell, time delta utilities

.dotfiles/bin/ago

@@ -0,0 +1,13 @@
+#!/usr/bin/env python3
+
+import datetime
+import sys
+import time
+
+if len(sys.argv) <= 1:
+    print(f"Usage: {sys.argv[0]} [:]value", file=sys.stderr)
+    sys.exit(0)
+
+v = sys.argv[1]
+seconds = int(v[1:]) if v[0] == ":" else int(time.time()) - int(v)
+print(datetime.timedelta(seconds=seconds))

.dotfiles/shell/aliases

@@ -259,6 +259,13 @@ if [ -x /usr/bin/notify-send ]; then
     }
 fi
 
+bell() {
+    "${@}"
+    ret=${?}
+    tput bel
+    return "${ret}"
+}
+
 png2jpg() {
     for i in "${@}"; do
         echo "${i}"