Patchutils is a small collection of programs that operate on patch files. - Interdiff generates an incremental patch from two patches against a common source. - Combinediff generates a single patch from two incremental patches, allowing you to merge patches together. - Filterdiff will select the portions of a patch file that apply to files matching (or, alternatively, not matching) a shell wildcard. - Fixcvsdiff is for correcting the output of 'cvs diff'. - Rediff corrects hand-edited patches, by comparing the original patch with the modified one and adjusting the offsets and counts. - Lsdiff displays a short listing of affected files in a patch file, along with (optionally) the line numbers of the start of each patch. - Splitdiff separates out patches from a patch file so that each new patch file only alters any given file once. - Grepdiff displays a list of the files modified by a patch where the patch contains a given regular expression. - Recountdiff fixes up counts and offsets in a unified diff. - Unwrapdiff fixes word-wrapped unified diffs. WWW: http://cyberelk.net/tim/patchutils/