Add pomodoro script to manage time.

See
https://orangina-rouge.org/plux/index.php?article39/travail-la-methode-pomodoro

pomodoro.sh

@@ -0,0 +1,25 @@
+#!/bin/sh
+
+TIME=0
+# Work on the task (default: 25 min)
+DELAY=25
+# Task information (name, path, …)
+TASK_NAME="${1}"
+TASK_PATH="${HOME}/${TASK_NAME}.todo"
+
+# Create the task file
+if [ ! -f "${TASK_PATH}" ]; then
+  touch "${TASK_PATH}"
+fi
+
+# Tiny timer
+while [ "${TIME}" != "${DELAY}" ]
+do
+  #sleep 60
+  sleep 1
+  TIME=$((TIME+1))
+  # Add some colors
+  printf '%b' "${TIME}" > "${TASK_PATH}"
+done
+
+exit 0