On 2010-06-03 12:29:29 (+0300), Mihamina Rakotomandimby <mihamina@xxxxxxxxxx> wrote:
> > Joel Fernandes <agnel.joel@xxxxxxxxx> :
> >> If I launch a
> >> $ watch find / -type f -name 'toto'
> >> (it's a useless command just for the example)
> >> and then I get the PID of this.
> >PID of what? watch or find?
>
> PID of "watch"
>
> >> When I
> >> $ cat /proc/${PID}/cmdline
> >> watchfind/-typef-nametoto
> >> Yes, it's the command line, but I would like to parse it, in order to
> >> display the launched executable + its arguments.
> >> How to parse it?
> >Could you be a bit more clear with your question?
>
> I want to split "watchfind/-typef-nametoto" (the content
> of /proc/${PID}/cmdline) to get "watch find / -type f -name toto" (the
> command I issued above)
>
> But I cannot figure out how to split it.
> Would you know another place in the system I should look at?
>
Running 'hexdump -C /proc/2202/cmdline' produces this:
00000000 2f 73 62 69 6e 2f 67 65 74 74 79 00 33 38 34 30 |/sbin/getty.3840|
00000010 30 00 74 74 79 31 00 |0.tty1.|
00000017
It looks like the fields are separated by 0 bytes.
You'll simply need to read the file and split on every zero byte.
Kristof
--
To unsubscribe from this list: send the line "unsubscribe linux-newbie" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.linux-learn.org/faqs
