On 26 May 2009, at 10:57, Nikos Chantziaras wrote:

Stroller wrote:
Hi there,
When I install a new package I run `emerge -pv foo` to look at the USEs it supports. In the past I have looked these up just by grepping, e.g.:
 $ grep foo /usr/portage/profiles/use.*
/usr/portage/profiles/use.desc:foomaticdb - Adds support for the foomatic printing driver database
 $
However I have recently learned to use `euse -i foo` instead. This is much more convienient than grepping because one can use the Bash history: up-arrow, ctrl-w to delete the last word & type in or paste the name of the next USE to check it. However this is clumsy when you have a package (like mplayer) with many USE flags.
What I would like to be able to do is:
 $ $magicusecommand category/package
 doc - Install HTML wxWidgets docs and wxpython API reference.
examples - Install interactive demo module browser and sample applets.
 samba - Adds support for SAMBA (Windows File and Printer sharing)
 $
The command should print out the descriptions for ALL the USE flags supported by the category/package, but only for that category/ package. Ideally it should show if they're currently enabled or not. I can't be the only person to desire this feature - surely there must be a package or command do do this. I can't find this in `man portage` as an advanced version of `emerge -pv package`. Can anyone tell me what $magicusecommand is called, please?

equery uses <package atom>

Many thanks!

I have been for sometime trying to be able to make something useful of Justin's advice. euse & quse are incorrect, but emeta looks like it will do the job; emteta is in the genscripts overlay, but layman has been frustrating me.

Your suggestion has solved the problem immediately.

Many thanks!

Stroller.

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