When /dev/fd is missing, and named pipes are used instead (like on AIX),
this snippet sometimes does work right, wrong, or hang - depending on
the operating system's process scheduler timing:
for x in {0..9}; do echo $x; done > >(
cnt=0; while read line; do let cnt=cnt+1; done; echo $cnt
)
Hi, I used read command in /etc/rc.local, and system was redirected to
ttyS0, but when exec read in rc.local, my input did not echo in ttyS0, and
system actualy got my input. I am confused about this.
On 10/31/13, 11:46 AM, Michael Haubenwallner wrote:
> When /dev/fd is missing, and named pipes are used instead (like on AIX),
> this snippet sometimes does work right, wrong, or hang - depending on
> the operating system's process scheduler timing:
>
> for x in {0..9}; do echo $x; done > >(
>
Hi,
"declare -g var" should return a nonzero return code when it fails.
Declaring a local variable as global in a function, has a exit status of 0,
but the operation was not successful (see test_error). "help declare" and
the bash man page indicate the exit status will indicate success or failu
