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s6
Software
skarnet.org

Thes6-svdt program

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

Interface

     s6-svdt [ -S | -s ] [ -nmaxlines ]servicedir

s6-svdt prints the contents of the recorded death tally of the service beingcurrently supervised at theservicedirservice directory, then exits 0.

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

• ATAI64Ntimestamp .
• 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 codeof the process.

Options

• -S : print signal names. This is the default.
• -s : print signal numbers. The numerical value of the signalwill be printed instead of the signal name.
• -n maxlines : limit the output to at mostthe latestmaxlines 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 intos6-tai64nlocal.
• Process deaths are recorded up to a default maximum of 100. This default canbe modified via themax-death-tally file in theservice directory.