The s6-svdt program

s6-svstat prints the recorded death tally of a service, i.e. a list of the times the process died, with the cause of death.

Interface

     s6-svdt [ -S | -s ] [ -n maxlines ] servicedir

s6-svdt prints the contents of the recorded death tally of the service being currently supervised at the servicedir service directory, then exits 0.

For each recorded death, s6-svdt prints one line. This line contains the following fields, separated with spaces:

A TAI64N timestamp .
The word "signal" if the death was caused by a signal, or the word "exitcode" if the death was a normal exit.
The name of the signal that caused the death, or the exit code of the process.

Options

-S : print signal names. This is the default.
-s : print signal numbers. The numerical value of the signal will be printed instead of the signal name.
-n maxlines : limit the output to at most the latest maxlines deaths.

Exit codes

0: success
100: wrong usage
111: system call failed

Notes

To obtain human-readable local time or GMT time instead of TAI64N timestamps, simply pipe s6-svdt's output into s6-tai64nlocal.