屏幕捕獲工具：gtkShots
GTKShots 是一個 python/gtk 程序，用來捕捉屏幕截圖，可根據配置自動定時捕獲，可設置圖像精度等選項。可方便用來制作幻燈片和監控桌面活動等。
gtkShots is a python/GTK application to capture screenshots continuosly. It is a hand tool to automatically save the screenshots in a (un)specified period of time, with the possibility to schedule it and to choose options for each screenshot to be saved, such as the size, the parent folder and the time interval between them.
gtkShots could be used for a lot of different aims, for instance to create presentations, to monitor desktop activity, or for any other scope that needs a screenshots sequence.
gtkShots is actually aGUIfrontend to pyshots, my command-line python script to do the same job. Thus, if you need to work on the terminal sessions, you could take advantage of this.
使用方法：
usage: pyshots.py [options]
options:
-h, --help show this help message and exit
-f FOLDER, --folder=FOLDER
The folder where screenshots should be saved. Default
is ~/Desktop/PyScreens
-s SIZE, --size=SIZE The resize percentage for the screenshots to save.
Default is 100% (no resize)
-t FREQUENCY, --frequency=FREQUENCY
Snap a screenshot every (the given number of) seconds.
Default is 300 (5 minutes)
-z STARTTIME, --start-after=STARTTIME
Start after a number of seconds. Default is 0, start
now
-u STOPTIME, --stop-after=STOPTIME
Stop after a number of seconds. Default is -1, stop
manually
-d, --daemon Run as daemon