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more on the cat

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tg 2010-08-28 21:22:24 +00:00
parent 06c6be0a70
commit 2c59cc6089
1 changed files with 7 additions and 4 deletions
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mksh.1
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@ -1,4 +1,4 @@
.\" $MirOS: src/bin/mksh/mksh.1,v 1.236 2010/08/28 17:21:44 tg Exp $ .\" $MirOS: src/bin/mksh/mksh.1,v 1.237 2010/08/28 21:22:24 tg Exp $
.\" $OpenBSD: ksh.1,v 1.136 2010/07/15 20:04:35 schwarze Exp $ .\" $OpenBSD: ksh.1,v 1.136 2010/07/15 20:04:35 schwarze Exp $
.\"- .\"-
.\" Copyright © 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 .\" Copyright © 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
@ -1224,8 +1224,7 @@ is interpreted to mean substitute the contents of
Note that Note that
.Ic $(\*(Ltfoo) .Ic $(\*(Ltfoo)
has the same effect as has the same effect as
.Ic $(cat foo) , .Ic $(cat foo) .
but it is carried out more efficiently because no process is started.
.Pp .Pp
.Sy Note : .Sy Note :
.Pf $( Ns Ar command Ns \&) .Pf $( Ns Ar command Ns \&)
@ -2327,7 +2326,11 @@ statements, etc.
any redirections must appear at the end. any redirections must appear at the end.
Redirections are processed after Redirections are processed after
pipelines are created and in the order they are given, so the following pipelines are created and in the order they are given, so the following
will print an error with a line number prepended to it: will print an error with a line number prepended to it, if you have a
.Xr cat 1
that supports the
.Fl n
option:
.Pp .Pp
.D1 $ cat /foo/bar 2\*(Gt&1 \*(Gt/dev/null \*(Ba cat \-n .D1 $ cat /foo/bar 2\*(Gt&1 \*(Gt/dev/null \*(Ba cat \-n
.Pp .Pp