Scrot，也是一个命令行下使用的截图工具，支持全屏、窗口、选取、多设备、缩略图、延时，甚至可以截图完毕之后指定某程序打开截好的图片。Scrot 是Liunx屏幕抓图工具中的皎皎佼佼者，它小巧而不失为强大，精练而不缺少灵活。
1.在终端输入命令： sudo apt-get install scrot
执行过程：
zyx@zyx-desktop:/$ sudo apt-get install scrot
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following extra packages will be installed:
giblib1 libimlib2
The following NEW packages will be installed:
giblib1 libimlib2 scrot
0 upgraded, 3 newly installed, 0 to remove and 63 not upgraded.
Need to get 244kB of archives.
After this operation, 782kB of additional disk space will be used.
Do you want to continue [Y/n]? y
Get:1 http://mirrors.163.com/ubuntu/ lucid/universe giblib1 1.2.4-5 [19.4kB]
Get:2 http://mirrors.163.com/ubuntu/ lucid/universe scrot 0.8-11 [17.9kB]
Get:3 http://archive.ubuntu.com/ubuntu/ lucid/main libimlib2 1.4.2-5build1 [207kB]
Fetched 244kB in 3s (71.7kB/s)
Selecting previously deselected package libimlib2.
(Reading database ... 174896 files and directories currently installed.)
Unpacking libimlib2 (from .../libimlib2_1.4.2-5build1_i386.deb) ...
Selecting previously deselected package giblib1.
Unpacking giblib1 (from .../giblib1_1.2.4-5_i386.deb) ...
Selecting previously deselected package scrot.
Unpacking scrot (from .../archives/scrot_0.8-11_i386.deb) ...
Processing triggers for man-db ...
Setting up libimlib2 (1.4.2-5build1) ...
Setting up giblib1 (1.2.4-5) ...
Setting up scrot (0.8-11) ...
Processing triggers for libc-bin ...
ldconfig deferred processing now taking place
zyx@zyx-desktop:/$
2.按照顺序：System － Preferences － Main Menu 打开主菜单
3.在左边选中：Applications － Graphics
4.在左边点击New Item,弹出Create Launcher对话框.
5.填写运行信息.
Name:Scrot
Command:scrot -s -b
Comment: capture a screenshot
点击OK即可!
OK!!!