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| author | Stephane Chazelas <stephane.chazelas@gmail.com> | 2014-11-23 18:27:41 +0000 |
|---|---|---|
| committer | Peter Stephenson <p.w.stephenson@ntlworld.com> | 2014-11-23 18:29:09 +0000 |
| commit | ff292af95f9bb6f07a56c162e583a145bbaa389d (patch) | |
| tree | 0c52f30bf62a39eb76728f7a09fd383e81653606 | |
| parent | 02bca2ea0fe47611644bfc1ca8b93f215317c97d (diff) | |
| download | zsh-ff292af95f9bb6f07a56c162e583a145bbaa389d.tar.gz zsh-ff292af95f9bb6f07a56c162e583a145bbaa389d.tar.xz zsh-ff292af95f9bb6f07a56c162e583a145bbaa389d.zip | |
33740: FAQ: another way of avoiding MULTIOs effects on pipes
| -rw-r--r-- | ChangeLog | 5 | ||||
| -rw-r--r-- | Doc/Zsh/expn.yo | 3 | ||||
| -rw-r--r-- | Etc/FAQ.yo | 9 |
3 files changed, 16 insertions, 1 deletions
diff --git a/ChangeLog b/ChangeLog index 464c8846d..0d597c73c 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,8 @@ +2014-11-23 Peter Stephenson <p.w.stephenson@ntlworld.com> + + * 33740: Stephane: Etc/FAQ.yo: Another way of avoiding MULTIO + effects on pipes. + 2014-11-22 Barton E. Schaefer <schaefer@zsh.org> * 33763 (cf. Baptiste Daroussin 33747): Doc/Zsh/mod_system.yo: diff --git a/Doc/Zsh/expn.yo b/Doc/Zsh/expn.yo index a0478e78c..f1334e37a 100644 --- a/Doc/Zsh/expn.yo +++ b/Doc/Zsh/expn.yo @@ -1061,6 +1061,9 @@ for arrays which keep only the first occurrence of duplicated values item(tt(hide))( for parameters with the `hide' flag ) +item(tt(hideval))( +for parameters with the `hideval' flag +) item(tt(special))( for special parameters defined by the shell ) diff --git a/Etc/FAQ.yo b/Etc/FAQ.yo index 7d4b86ec3..eeb7c13de 100644 --- a/Etc/FAQ.yo +++ b/Etc/FAQ.yo @@ -1784,7 +1784,14 @@ sect(Why is my output duplicated with `tt(foo 2>&1 >foo.out | bar)'?) to both files when the redirector appears twice. What's going on in the first example is exactly the same, however the second redirector is disguised as a pipe. So if you want to turn this effect off, you need - to unset the option mytt(MULTIOS). + to unset the option mytt(MULTIOS), or alternatively write the following: + verb( + % { print output; print error >&2 } 2>&1 >&- >foo.out | sed 's/error/erratic/' + erratic + ) + By closing stdout with tt(>&-), we're cancelling the previous redirections + (to the pipe) and start anew with tt(>foo.out) instead of adding it as a + redirection target to stdout. sect(What are these `^' and `~' pattern characters, anyway?) |