gdiffmk(1) General Commands Manual gdiffmk(1) (NAME) gdiffmk - groff/nroff/troff (SYNOPSIS) gdiffmk [-a add-mark] [-c change-mark] [-d delete-mark] [-x diff-command] [-D [-B] [-M mark1 mark2]] [--] file1 file2 [output-file] gdiffmk --help gdiffmk --version (DESCRIPTION) gdiffmk roff(7) file1 file2 ( output-file) (mc) . gdiffmk roff . \h'3m' \h'(1 * 3m)' \h'3m+0' . file1 file2 "-" gdiffmk . output gdiffmk . "-" gdiffmk . "-" . (OPTIONS) --help --version . -a add-mark file1 file2 add-mark (: "+"). -B br -D () . . -c change-mark file1 file2 change-mark (: "|"). -d delete-mark file1 file2 delete-mark (: "*"). -D . -M mark1 mark2 -D mark1 (: "[[") mark2 (: "]]") . -x diff-command diff-command file1 file2 . diff-command (: diff) -D GNU diff(1) . -- "-" . (EXIT STATUS) gdiffmk 0 1 2 diff(1) sh(1) gdiffmk 3 output file1 file2 4 . (CAVEATS) . gdiffmk . gdiffmk -D GNU diff "#ifdef" . diff Busybox . -x diff-command . (AUTHORS) gdiffmk Mike Bianchi . groff . (SEE ALSO) groff(1), nroff(1), troff(1), roff(7), diff(1) groff 1.24.1 2026-03-15 gdiffmk(1)