Taking Screenshots with Linux

Then you can use one of its tools, which is import

Take a screenshot of the full screen

import -window root screenshot.jpg

If you need some time to arrange the screen for your screenshot.

Updated, thanks to a friend of the blog

import -pause 3 -window root screenshot.jpg

This will give you 3 seconds before the screen shot is taken.

Take a screenshot of just a region of the screen

import screenshot.jpg

This will make your cursor looks like a cross and you can select the region of the screen to take the screenshot, here you can also use the sleep command.

Vmware

If you are using VMware you can select

vm->capture screen

And you will see a dialog box like this:

And you will take a screenshot of the whole screen of the vmware screen.

Two more tips

I will show you now two more very useful when managing screenshots.

Crop images with gimp

Select the circled tool, and use it to select the region of the image you want to crop.

Changing the size of the image, and creating thumbnails

If you need to resize your images, or create thumbnails for them you can use imagemagick once again:

convert -resize 150x imputfile.jpg outputfile.jpg

This will resize your image to 640 to anything the imputfile.jpg and save it as outputfile.jpg, it is always better to only specify one of the sizes to maintain the proportion of the image.

If you want to convert a lot of images at the same time, you can use a trick I learned from my friend of bashcurescancer

find . -type f -name '*.png' -exec convert -resize 640x {} {} \;

This way you will find files ending in .png and resize them to 640x size, the output files will be named the same as the input ones, take care with this if you do not want to loose the original files.