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Diffstat (limited to 'sleep-until.1')
| -rw-r--r-- | sleep-until.1 | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/sleep-until.1 b/sleep-until.1 new file mode 100644 index 0000000..c166d7a --- /dev/null +++ b/sleep-until.1 @@ -0,0 +1,47 @@ +.TH SLEEP-UNTIL 1 +.SH NAME +sleep-until - sleep until a specified time +.SH SYNOPSIS +.B sleep-until +.RI [ clockname +| +.IR timepoint ]\ ... +.SH DESCRIPTION +Pause until \fItimepoint\fP. \fItimepoint\fP is the number of +seconds since Epoch, in UTC but not accounting for leap seconds, +by default. If \fIclockname\fP is specifed, \fItimepoint\fP is +the number of seconds since the zerotime of that clock. +\fItimepoint\fP may be an arbitrary floating point number. +Pause is continued when interrupted. +.PP +On Linux 4.2.2 the clocks that can be used are: +.TP +* +\fBCLOCK_REALTIME\fP +.TP +* +\fBCLOCK_MONOTONIC\fP +.TP +* +\fBCLOCK_BOOTTIME\fP +.TP +* +\fBCLOCK_REALTIME_ALARM\fP +.TP +* +\fBCLOCK_BOOTTIME_ALARM\fP +.PP +Note that the neither course clocks, \fBCLOCK_MONOTONIC_RAW\fP +(the proper implementation of a monotonic clock), and +\fBCLOCK_TAI\fP does not work. +.SH EXIT STATUS +.TP +0 +The command was successful. +.TP +1 +The command failed. +.SH SEE ALSO +.BR sleep (1), +.BR date (1), +.BR clock_gettime (3) |