sync-watch

#!/usr/bin/env bash
#########################################################################
# Dirty Data Sync Watcher                                               #
#                                                                       #
#   Outputs a tiny, updating display of how many megabytes are queued   #
#   in memory, waiting to be written to disk.                           #
#                                                                       #
#   This helps you visualize when it will be safe to unmount a disk     #
#   or turn off your system.                                            #
#                                                                       #
# Part of HopeSeekr's BashScripts Collection                            #
# https://github.com/hopeseekr/BashScripts/                             #
#                                                                       #
# Copyright © 2020 Theodore R. Smith <theodore@phpexperts.pro>          #
# GPG Fingerprint: 4BF8 2613 1C34 87AC D28F  2AD8 EB24 A91D D612 5690   #
#                                                                       #
# License: Creative Commons Attribution v4.0 International              #
#########################################################################

watch -d grep -e Dirty: -e Writeback: /proc/meminfo