http://h34nug3iwqjf2376fmmzdhgqivckzemcujmarlptfqeqtq7vya47yyad.onion/2008/01/page/2/index.html
. $ cat some_patch_file | colordiff Or: $ cvs diff | colordiff colordiff even works with wdiff since version 1.0.7 (currently only in Debian unstable, not in Ubuntu). Default colors are very clean on a dark terminal: blue for new text, red for old text, magenta for other diff stuff. You can also modify them easily if you wish. Because colordiff has no way to determine if it writes on a dark or on a light terminal, default colors may be quite harsh on a white terminal.