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Re: trap handler scope wrong?
From: |
Chet Ramey |
Subject: |
Re: trap handler scope wrong? |
Date: |
Sun, 05 Mar 2006 20:54:12 -0500 |
User-agent: |
Thunderbird 1.5 (Macintosh/20051201) |
Phillip Susi wrote:
> Does redirecting to /dev/tty work if the original stdout of the shell
> was NOT a tty? This script runs as a cron job so it has no tty.
Probably won't work to use /dev/tty in that case.
> Also is there a better way to save the original stdout and switch back
> to it than this:
>
> trap "cat $LOG > &3" ERR
> {
> foo
> bar
> } 3>&1 > /dev/null
That's about right, but you need >&3 in the trap command.
Chet
--
``The lyf so short, the craft so long to lerne.'' - Chaucer
( ``Discere est Dolere'' -- chet )
Live Strong. No day but today.
Chet Ramey, ITS, CWRU chet@case.edu http://cnswww.cns.cwru.edu/~chet/