DIFF(1) GNU Tools DIFF(1) NAME diff - diff [] , diff . - . , diff - - , diff , . -. , diff -r --recursive. diff , diff -, - . , -- they begin with -. GNU diff . , - , -- . -ac -a -c. . ([ ]) - (). -c -u . , -a . -b . -B . --brief ,. -c . -C --context[=lines] (), . , . --changed-group-format=format format if-then-else . -d . diff (). -D name if-then-else , name. -e --ed ed . --exclude=pattern pattern . --exclude-from=file file . --expand-tabs tabtab -f ed -F regexp regexp. . --forward-ed ed -h Unix. -H . --horizon-lines=lines . -i . -I regexp regexp . --ifdef=name if-then-else , name. --ignore-all-space . --ignore-blank-lines --ignore-case . --ignore-matching-lines=regexp regexp . --ignore-space-change . --initial-tab tab. tab. -l pr . -L label --label=label label . --left-column --line-format=format format if-then-else . --minimal . diff (). -n RC- diffs; -f -N --new-file . --new-group-format=format format if-then-else --new-line-format=format format if-then-else --old-group-format=format format if-then-else --old-line-format=format format format if-then-else -p c. -P . --paginate pr . -q ,. -r . --rcs RC- diffs; -f --recursive . --report-identical-files -s . -S file file . . --sdiff-merge-assist sdiff. sdiff diff . --show-c-function c. --show-function-line=regexp regexp. --side-by-side . --speed-large-files . --starting-file=file file . . --suppress-common-lines -t tabtab -T tab. tab. --text . -u . --unchanged-group-format=format format if-then-else. --unchanged-line-format=format format if-then-else. --unidirectional-new-file . -U lines --unified[=lines] (), . , . -v --version diff . -w -W columns --width=columns . -x pattern pattern . -X file file . -y cmp(1), comm(1), diff3(1), ed(1), patch(1), pr(1), sdiff(1). DIAGNOSTICS 0 1 2 [] Scorpio [] 2000/10/19 Linuxman: http://cmpp.linuxforum.net man man https://github.com/man-pages-zh/manpages- zh GNU Tools 22sep1993 DIFF(1)