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Document the new argument parser for sleep(1) and SIGINFO behaviour.

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Remove higlight for the unportability notice.

MFC after:	3 weeks
This commit is contained in:
Konstantin Belousov 2010-08-02 10:59:23 +00:00
parent f6e6dc63ab
commit 67a54762a1
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=210750
1 changed files with 7 additions and 6 deletions
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13
bin/sleep/sleep.1
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@ -51,6 +51,10 @@ suspends execution for a minimum of
If the
.Nm
command receives a signal, it takes the standard action.
When the
.Dv SIGINFO
signal is received, the estimate of the amount of seconds left to
sleep is printed on the standard output.
.Sh IMPLEMENTATION NOTES
The
.Dv SIGALRM
@ -58,14 +62,11 @@ signal is not handled specially by this implementation.
.Pp
The
.Nm
command will accept and honor a non-integer number of specified seconds
(with a
.Ql .\&
character as a decimal point).
.Bf Sy
command allows and honors a non-integer number of seconds to sleep
in any form acceptable by
.Xr strtod 3 .
This is a non-portable extension, and its use will nearly guarantee that
a shell script will not execute properly on another system.
.Ef
.Sh EXIT STATUS
.Ex -std
.Sh EXAMPLES