Clark J. Wang wrote:
When I was doing some testing I found the file descriptor 10 is always
duplicate of fd 0 and it cannot be closed.
Half right. When a redirection involving fd 0 is evaluated, the shell
has to save fd 0 somewhere so it can be restored. It uses fcntl to
duplicate fd 0 to
On Mon, Nov 3, 2008 at 06:19, Chet Ramey [EMAIL PROTECTED] wrote:
Clark J. Wang wrote:
When I was doing some testing I found the file descriptor 10 is always
duplicate of fd 0 and it cannot be closed.
Half right. When a redirection involving fd 0 is evaluated, the shell
has to save fd 0
On 2008-10-31, Clark J. Wang wrote:
...
# read line 11--- test with fd 11
bash: 11: Bad file descriptor
#
You haven't opened file descriptor 11:
$ (
exec 11$HOME/.bashrc
while read 11
do
printf .
done
echo
exec 11-
)
On Fri, Oct 31, 2008 at 14:59, Chris F.A. Johnson [EMAIL PROTECTED]wrote:
On 2008-10-31, Clark J. Wang wrote:
...
# read line 11--- test with fd 11
bash: 11: Bad file descriptor
#
You haven't opened file descriptor 11:
You're right. I just want to show the different behavior of
On Fri, Oct 31, 2008 at 14:18, Clark J. Wang [EMAIL PROTECTED] wrote:
Hi, all:
When I was doing some testing I found the file descriptor 10 is always
duplicate of fd 0 and it cannot be closed.
See the following commands:
# echo $BASH_VERSION
3.2.39(1)-release
# read line 10
hello
