Http://blog.csdn.net/pipisorry/article/details/39615047
There are several options on the Windows platform. You can use the tool that comes with the Windows system, the function of the 360 browser, or QQ, And the prt SC key on the keyboard.
On Linux:
Keys on the keyboard can also be used, but the screen is captured. What should I do when I want a certain area?
In ubuntu 10.04, you can also find the screenshot tool in applications easily. However, since Ubuntu 10.10, I have never been able to find the tool for Ubuntu.
1. Enter screenshot in dash to find it.
2. You can use the command. The command in Ubuntu is gnome-screenshot.
Enter gnome-screenshot-H on the terminal to view the command usage.
Usage:
Gnome-screenshot [option...] capture the screen image
Help options:
-H,-help show help options
-Help-ALL: show all help options
-Help-GTK: Display GTK + options
Application options:
-W,-window capture window, instead of the whole screen
-A,-area captures an area of the screen, rather than the whole screen
-B,-include-border: The screenshot contains the window border.
-B,-Remove-border remove the window border of the screen
-D,-delay = Second: capture the image after the specified delay [in seconds]
-E,-border-effect = effect (shadow, border, or no special effect)
-I,-interactive setting options
-Display = display X to be used
Set a shortcut for intercepting a region:
Set shortcuts in Ubuntu 12.04
Suppose I want to press CTRL + ALT + A to implement the region
Choose system Settings> keyboard> shortcut key> Custom shortcut key> +, enter screenshot in name, enter gnome-screenshot-A in command, and click Apply, click Disable to disable it. Press CTRL + ALT + A to set the shortcut key.
From: http://blog.csdn.net/pipisorry/article/details/39615047
Ref: http://www.maybe520.net/blog/1678/
Tools and shortcut key settings in Ubuntu