Aha, that's the trick: the filedescriptor shuffle. And 2047 seems to
be the largest file descriptor:
(
for i in 0 1 {3..10000} ; do
line="exec $i> /dev/null $i>&-"
eval "$line" || break
done
)
-bash: 2048: Bad file descriptor
which coincides with ulimit:
$ ulimit -n
2048
Thanks, Eric.
Regards,
- Robert
On Wed, Dec 10, 2008 at 10:30 PM, Eric Wilson <[email protected]> wrote:
>
> How about reassigning stdout with other file descriptors, then reassigning it
> back.
>
> --
> #!/bin/bash
> exec 7>&1 # redirect stdout
> exec > $2 # output to file
>
> echo "hello"
>
> exec 1>&7 7>&- # Restore stdout
>
> echo "world"
--~--~---------~--~----~------------~-------~--~----~
Central West End Linux Users Group (via Google Groups)
Main page: http://www.cwelug.org
To post: [email protected]
To subscribe: [email protected]
To unsubscribe: [email protected]
More options: http://groups.google.com/group/cwelug
-~----------~----~----~----~------~----~------~--~---
