s6-portable-utils
Software
skarnet.org

The s6-nuke program

s6-nuke sends signals to every process it is allowed to send.

Interface

     s6-nuke [ -h | -t | -k ]

• Depending on the options it is given, s6-nuke sends signals to all processes; depending on s6-nuke's rights, not all processes may receive them.
• s6-nuke protects itself against the signals it sends (which doesn't do much good against SIGKILL). If it survives the blast, it exits 0.

Options

• -h : send a SIGHUP
• -t : send a SIGTERM then a SIGCONT
• -k : send a SIGKILL

Usage notes

s6-nuke can be used during the shutdown procedure of a system, which is described here.