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parse qmake output from bash script

How can I extract the Qt version from a bash script us开发者_StackOverflow社区ing qmake -v?

[newton@plex .home] qmake -v
Qmake version: 1.07a (Qt 3.3.6)
Qmake is free software from Trolltech AS.
[newton@plex .home]

edit

sorry, i'm looking for 2.3.6


qmake -v | grep -m1 -o -P "\(Qt [^\)]+" | cut -d" " -f2
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