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authorkib <kib@FreeBSD.org>2010-08-02 10:59:23 +0000
committerkib <kib@FreeBSD.org>2010-08-02 10:59:23 +0000
commitad97a57b125bacb5e8e039f1b807fc65d734b3fa (patch)
treed0a2f7af0676cfa360917e40e188499b3af9da0e /bin/sleep
parent58f67b3672cdcd81547cb431205e5ca12e1208a1 (diff)
downloadFreeBSD-src-ad97a57b125bacb5e8e039f1b807fc65d734b3fa.zip
FreeBSD-src-ad97a57b125bacb5e8e039f1b807fc65d734b3fa.tar.gz
Document the new argument parser for sleep(1) and SIGINFO behaviour.
Remove higlight for the unportability notice. MFC after: 3 weeks
Diffstat (limited to 'bin/sleep')
-rw-r--r--bin/sleep/sleep.113
1 files changed, 7 insertions, 6 deletions
diff --git a/bin/sleep/sleep.1 b/bin/sleep/sleep.1
index bc56dbf..5dad81a 100644
--- a/bin/sleep/sleep.1
+++ b/bin/sleep/sleep.1
@@ -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
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