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Date: Thu, 22 Sep 2016 10:09:50 +0200 (CEST)
From: Julius Schmidt <aiju@phicode.de>
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Subject: file name from sam !
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X-Bullshit: progressive extension dependency service-aware interface 

would be nice if there was a feature along the lines of having sam set an 
env variable $f with the current file name so you can do things like

! chmod +x $f

without having to retype the filename.

maybe this already exists and i just don't know :)