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be more accurate but terse regarding pipe sequences

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somehow, variables don’t propagate up much more often
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tg 2007-09-26 19:26:58 +00:00
parent 1086ebe83f
commit 307330bee2
1 changed files with 5 additions and 9 deletions
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mksh.1
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@ -1,7 +1,7 @@
.\" $MirOS: src/bin/mksh/mksh.1,v 1.100 2007/09/09 19:18:59 tg Exp $ .\" $MirOS: src/bin/mksh/mksh.1,v 1.101 2007/09/26 19:26:58 tg Exp $
.\" $OpenBSD: ksh.1,v 1.120 2007/05/31 20:47:44 otto Exp $ .\" $OpenBSD: ksh.1,v 1.120 2007/05/31 20:47:44 otto Exp $
.\" .\"
.Dd September 9, 2007 .Dd September 26, 2007
.Dt MKSH 1 .Dt MKSH 1
.Os MirBSD .Os MirBSD
.Sh NAME .Sh NAME
@ -5395,14 +5395,10 @@ mailing list or in the
IRC channel at IRC channel at
.Pa irc.freenode.net:6667 . .Pa irc.freenode.net:6667 .
.Pp .Pp
By the way, the most frequently reported bug is: By the way, the snippet
.Bd -literal -offset indent .Bd -literal -offset indent
$ print hi \*(Ba read a; print $a # Does not show hi $ print hi \*(Ba read a; print $a # Does not show hi
.Ed .Ed
.Pp .Pp
This does not work because the last command of a pipe sequence does not work, because commands of a pipe sequence are executed in
is executed in a subshell. a subshell (but you can usually use co-processes instead of pipes).
This is an
.Nm
feature which can be depended on by scripts.
Use co-processes to work around if necessary and possible.