Re: set `ping -qc3 xxx.xxx.xxx.xxx 2>/dev/null | grep transmitted`

[Paul Jarc]

rick <rbugman@erols.com> wrote:
> if [ $4 -gt 0 ];
...
> if the 4th item (should be a 3 if the interface is up) exists and has
> its group id bit set(-g) and if the file descriptor is open and refers
> to a terminal (-t) returns true.

-gt is different from -g and -t.  See `help test`.

> I don't understand this piece of code, I would like to.

Ask about it on comp.unix.shell.  Post the whole piece of code (or,
better, the URL for it), not just one line.


paul