You need screenshots?

xgrab and xgrabsc are powerful tools to save screenshots in files (ps,
xpm, and more) or to print them. xgrabsc is invoked from a shell and
sends the rectangle grabbed on the screen to standard output. xgrab is
a menu-driven front-end to xgrabsc.

This program works only in PPM, XPM, and non-color PostScript formats
for display larger then 8 bits per pixel deep.

Documentation may be obtained by typing man xgrab and man xgrabsc. The
author's original comments can be found in
/usr/share/doc/packages/xgrabsc.