Linux support?

[jbenet]

no idea if my horrible hacks worked.

cc @cryptix @whyrusleeping @krl @lgierth

[cryptix]

11:37 < cryptix> btw it would be nice if you could pass args to the cli tool
11:37 < cryptix> aehr.. cli capture tool
11:38 < cryptix> because import usually asks you to click on a window to capture it. 
                 to capture the whole screen you need to pass '-window root' to it

11:54:01 lgierth | dash doesn't have -o pipefail
11:55:33 lgierth | 11.d in http://cfajohnson.com/shell/cus-faq-2.html#Q11 is a pipefail polyfill for dash
11:55:46 lgierth | dash being ubuntu's default shell

#11 makes it work with Bash at least.