[Gllug] Command line tool to find video dimensions?

Nix nix at esperi.org.uk
Sat Jun 2 21:56:52 UTC 2007


On 2 Jun 2007, Tethys stated:
>               But I'd be surprised if you could find a machine where
> it wasn't internal (that said, I've been surprised by such things
> before, and no doubt will be again).

/bin/sh and /bin/ksh on Solaris 2.8 and below (and perhaps 2.10+ but I
haven't checked yet).

As usual /usr/xpg4/bin/ksh works much better.

(This is one reason for the recommendation to set
SHELL=/usr/xpg4/bin/ksh before bootstrapping GCC on that platform: that
and its use of temporary files and fork() to implement here documents
and redirection around loops...)

>>> 		sed -rn -e '/^ID_VIDEO_(WIDTH|HEIGHT)/ {s/.*=//;N;s/\n.*=/x/p;h}' \
>>> 				-e '$ {g;s/^$/unknown size/;T;p}'
>>
>>This sort of sed is probably a criminal offence :)
>
> Pah! Some people just have no sense of beauty :-)

I've used sed as a grep replacement before, but *that* is, well, I
recommend you talk to Greg Ubben one of these days: you obviously think
in similar ways.

-- 
`On a scale of one to ten of usefulness, BBC BASIC was several points ahead
 of the competition, scoring a relatively respectable zero.' --- Peter Corlett
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