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According to B. K. Oxley (binkley) on 5/29/2007 9:05 PM:
> Why does one of these scripts produce an error and the other does not?
> function f()
> {
> echo "$1"
shell builtin, and it does not touch the fifo (try replacing this with
/bin/echo to see the difference)
> cat "$1"
so the fifo is still available
> function f()
> {
> ls -l "$1"
external process, which calls exit() and thus closes the only read handle
on the fifo. At which point, the writer is closed since no reader exists.
> cat "$1"
the fifo no longer exists, so the error is correct
If you need the fifo to persist over several external commands, you need
to use a shell grouping construct or an exec so that the shell holds a
handle to the fifo for the duration of the shell function. And this is
not cygwin specific.
- --
Don't work too hard, make some time for fun as well!
Eric Blake [EMAIL PROTECTED]
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