SYSTEMD-NOTIFY(1) systemd-notify SYSTEMD-NOTIFY(1) NAME systemd-notify - systemd SYNOPSIS systemd-notify [OPTIONS...] [VARIABLE=VALUE...] systemd-notify systemd "" sd_notify() sd_notify(3) NotifyAccess=all systemd --ready systemd "" systemd-notify READY=1 sd_notify(3) --pid= systemd PID PID systemd-notify PID systemd-notify MAINPID=$PID sd_notify(3) --status= systemd systemd-notify STATUS=... sd_notify(3) --booted init systemd 0 init systemd sd_booted(3) systemctl(1) is-system-running "offline" init systemd -h, --help --version 0 Example 1. systemd "" systemd #!/bin/bash mkfifo /tmp/waldo systemd-notify --ready --status="Waiting for data..." while : ; do read a < /tmp/waldo systemd-notify --status="Processing $a" # Do something with $a ... systemd-notify --status="Waiting for data..." done systemd(1), systemctl(1), systemd.unit(5), sd_notify(3), sd_booted(3) man http://www.jinbuguo.com man https://github.com/man-pages-zh/manpages- zh systemd 231 SYSTEMD-NOTIFY(1)