Document the no-op -r option of BSD xargs(1).
PR: docs/106416 Submitted by: Pete Slagle, freebsd-stable at voidcaptain.com MFC after: 3 days
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@ -37,7 +37,7 @@
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.\" $FreeBSD$
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.\" $xMach: xargs.1,v 1.2 2002/02/23 05:23:37 tim Exp $
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.\"
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.Dd December 30, 2005
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.Dd January 26, 2008
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.Dt XARGS 1
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.Os
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.Sh NAME
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@ -45,7 +45,7 @@
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.Nd "construct argument list(s) and execute utility"
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.Sh SYNOPSIS
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.Nm
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.Op Fl 0opt
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.Op Fl 0r
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.Op Fl E Ar eofstr
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.Oo
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.Fl I Ar replstr
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@ -221,6 +221,34 @@ in the POSIX locale,
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causes the command to be executed, any other response causes it to be
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skipped.
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No commands are executed if the process is not attached to a terminal.
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.It Fl r
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Compatibility with GNU
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.Nm .
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The GNU version of
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.Nm
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runs the
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.Ar utility
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argument at least once, even if
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.Nm
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input is empty, and it supports a
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.Fl r
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option to inhibit this behavior.
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The
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.Fx
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version of
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.Nm
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does not run the
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.Ar utility
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argument on empty input, but it supports the
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.Fl r
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option for command-line compatibility with GNU
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.Nm ,
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but the
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.Fl r
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option does nothing in the
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.Fx
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version of
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.Nm .
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.It Fl R Ar replacements
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Specify the maximum number of arguments that
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.Fl I
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