If you need to make a screenshot of a command lines but you don't have Windows running , the CmdCapture is the right tool for you.
There are several examples about how to use this tool, produce documentation for manuals, procedures or websites, or just print out a page with many errors during an installation ..

But the solution is CmdCapture , this free tool can be used in a command line to create a screenshot and save it in a png format (other format files available).
In case you have to save on a different folder the /d parameter can be used to specify another directory.

Parameters:

• /f choose the output file type - png ( default ), jpg, bmp, tif, xpm
• /h displays help on the command line parameters.
• /d can be used to specify another directory for the created screenshots.

Link : CmdCapture