dump all visible text on your screen
This is a simple python script that glues together a random screenshot function I found on StackOverflow with the Tesseract OCR library to give you an amazingly powerful and innovative tool that takes a screenshot, runs it through Tesseract, and dumps any recognized text to stdout.
Technically you could do this with
$ scrot $ tesseract -c <configvars> <image>
on any system, but, you know, Python is fun.
$ python prtsc-ctl-f.py $ python prtsc-ctl-f.py | grep <search term>
# apt-get install tesseract-ocr
# yum install tesseract
Copyright (C) 2015 Quentin Young This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/.