@item faces@samp{-f} in @code{finger}.@item fast@samp{-f} in @code{su}.@item fatal-warnings@samp{-E} in @code{m4}.@item file@samp{-f} in @code{info}, @code{gawk}, Make, @code{mt}, and @code{tar};@samp{-n} in @code{sed};@samp{-r} in @code{touch}.@item field-separator@samp{-F} in @code{gawk}.@item file-prefix@samp{-b} in Bison.@item file-type@samp{-F} in @code{ls}.@item files-from@samp{-T} in @code{tar}.@item fill-columnUsed in @code{makeinfo}.@item flag-truncation@samp{-F} in @code{ptx}.@item fixed-output-files@samp{-y} in Bison.@item follow@samp{-f} in @code{tail}.@item footnote-styleUsed in @code{makeinfo}.@item force@samp{-f} in @code{cp}, @code{ln}, @code{mv}, and @code{rm}.@item force-prefix@samp{-F} in @code{shar}.@item formatUsed in @code{ls}, @code{time}, and @code{ptx}.@item freeze-state@samp{-F} in @code{m4}.@item fullnameUsed in GDB.@item gap-size@samp{-g} in @code{ptx}.@item get@samp{-x} in @code{tar}.@item graphic@samp{-i} in @code{ul}.@item graphics@samp{-g} in @code{recode}.@item group@samp{-g} in @code{install}.@item gzip@samp{-z} in @code{tar} and @code{shar}.@item hashsize@samp{-H} in @code{m4}.@item header@samp{-h} in @code{objdump} and @code{recode}@item heading@samp{-H} in @code{who}.@item helpUsed to ask for brief usage information.@item here-delimiter@samp{-d} in @code{shar}.@item hide-control-chars@samp{-q} in @code{ls}.@item idle@samp{-u} in @code{who}.@item ifdef@samp{-D} in @code{diff}.@item ignore@samp{-I} in @code{ls};@samp{-x} in @code{recode}.@item ignore-all-space@samp{-w} in @code{diff}.@item ignore-backups@samp{-B} in @code{ls}.@item ignore-blank-lines@samp{-B} in @code{diff}.@item ignore-case@samp{-f} in @code{look} and @code{ptx};@samp{-i} in @code{diff} and @code{wdiff}.@item ignore-errors@samp{-i} in Make.@item ignore-file@samp{-i} in @code{ptx}.@item ignore-indentation@samp{-I} in @code{etags}.@item ignore-init-file@samp{-f} in Oleo.@item ignore-interrupts@samp{-i} in @code{tee}.@item ignore-matching-lines@samp{-I} in @code{diff}.@item ignore-space-change@samp{-b} in @code{diff}.@item ignore-zeros@samp{-i} in @code{tar}.@item include@samp{-i} in @code{etags};@samp{-I} in @code{m4}.@item include-dir@samp{-I} in Make.@item incremental@samp{-G} in @code{tar}.@item info@samp{-i}, @samp{-l}, and @samp{-m} in Finger.@item initial@samp{-i} in @code{expand}.@item initial-tab@samp{-T} in @code{diff}.@item inode@samp{-i} in @code{ls}.@item interactive@samp{-i} in @code{cp}, @code{ln}, @code{mv}, @code{rm};@samp{-e} in @code{m4};@samp{-p} in @code{xargs};@samp{-w} in @code{tar}.@item intermix-type@samp{-p} in @code{shar}.@item jobs@samp{-j} in Make.@item just-print@samp{-n} in Make.@item keep-going@samp{-k} in Make.@item keep-files@samp{-k} in @code{csplit}.@item kilobytes@samp{-k} in @code{du} and @code{ls}.@item language@samp{-l} in @code{etags}.@item less-mode@samp{-l} in @code{wdiff}.@item level-for-gzip@samp{-g} in @code{shar}.@item line-bytes@samp{-C} in @code{split}.@item linesUsed in @code{split}, @code{head}, and @code{tail}.@item link@samp{-l} in @code{cpio}.@item lint@itemx lint-oldUsed in @code{gawk}.@item list@samp{-t} in @code{cpio};@samp{-l} in @code{recode}.@item list@samp{-t} in @code{tar}.@item literal@samp{-N} in @code{ls}.@item load-average@samp{-l} in Make.@item loginUsed in @code{su}.@item machineNo listing of which programs already use this;someone should check tosee if any actually do, and tell @email{gnu@@gnu.org}.@item macro-name@samp{-M} in @code{ptx}.@item mail@samp{-m} in @code{hello} and @code{uname}.@item make-directories@samp{-d} in @code{cpio}.@item makefile@samp{-f} in Make.@item mappedUsed in GDB.@item max-args@samp{-n} in @code{xargs}.@item max-chars@samp{-n} in @code{xargs}.@item max-lines@samp{-l} in @code{xargs}.@item max-load@samp{-l} in Make.@item max-procs@samp{-P} in @code{xargs}.@item mesg@samp{-T} in @code{who}.@item message@samp{-T} in @code{who}.@item minimal@samp{-d} in @code{diff}.@item mixed-uuencode@samp{-M} in @code{shar}.@item mode@samp{-m} in @code{install}, @code{mkdir}, and @code{mkfifo}.@item modification-time@samp{-m} in @code{tar}.@item multi-volume@samp{-M} in @code{tar}.@item name-prefix@samp{-a} in Bison.@item nesting-limit@samp{-L} in @code{m4}.@item net-headers@samp{-a} in @code{shar}.@item new-file@samp{-W} in Make.@item no-builtin-rules@samp{-r} in Make.@item no-character-count@samp{-w} in @code{shar}.@item no-check-existing@samp{-x} in @code{shar}.@item no-common@samp{-3} in @code{wdiff}.@item no-create@samp{-c} in @code{touch}.@item no-defines@samp{-D} in @code{etags}.@item no-deleted@samp{-1} in @code{wdiff}.@item no-dereference@samp{-d} in @code{cp}.@item no-inserted@samp{-2} in @code{wdiff}.@item no-keep-going@samp{-S} in Make.@item no-lines@samp{-l} in Bison.@item no-piping@samp{-P} in @code{shar}.@item no-prof@samp{-e} in @code{gprof}.@item no-regex@samp{-R} in @code{etags}.@item no-sort@samp{-p} in @code{nm}.@item no-splitUsed in @code{makeinfo}.@item no-static@samp{-a} in @code{gprof}.@item no-time@samp{-E} in @code{gprof}.@item no-timestamp@samp{-m} in @code{shar}.@item no-validateUsed in @code{makeinfo}.@item no-waitUsed in @code{emacsclient}.@item no-warnUsed in various programs to inhibit warnings.@item node@samp{-n} in @code{info}.@item nodename@samp{-n} in @code{uname}.@item nonmatching@samp{-f} in @code{cpio}.@item nstuff@samp{-n} in @code{objdump}.@item null@samp{-0} in @code{xargs}.@item number@samp{-n} in @code{cat}.@item number-nonblank@samp{-b} in @code{cat}.@item numeric-sort@samp{-n} in @code{nm}.@item numeric-uid-gid@samp{-n} in @code{cpio} and @code{ls}.@item nxUsed in GDB.@item old-archive@samp{-o} in @code{tar}.@item old-file@samp{-o} in Make.@item one-file-system@samp{-l} in @code{tar}, @code{cp}, and @code{du}.@item only-file@samp{-o} in @code{ptx}.@item only-prof@samp{-f} in @code{gprof}.@item only-time@samp{-F} in @code{gprof}.@item outputIn various programs, specify the output file name.@item output-prefix@samp{-o} in @code{shar}.@item override@samp{-o} in @code{rm}.@item overwrite@samp{-c} in @code{unshar}.@item owner@samp{-o} in @code{install}.@item paginate@samp{-l} in @code{diff}.@item paragraph-indentUsed in @code{makeinfo}.@item parents@samp{-p} in @code{mkdir} and @code{rmdir}.@item pass-all@samp{-p} in @code{ul}.@item pass-through@samp{-p} in @code{cpio}.@item port@samp{-P} in @code{finger}.@item portability@samp{-c} in @code{cpio} and @code{tar}.@item posixUsed in @code{gawk}.@item prefix-builtins@samp{-P} in @code{m4}.@item prefix@samp{-f} in @code{csplit}.@item preserveUsed in @code{tar} and @code{cp}.@item preserve-environment@samp{-p} in @code{su}.@item preserve-modification-time@samp{-m} in @code{cpio}.@item preserve-order@samp{-s} in @code{tar}.@item preserve-permissions@samp{-p} in @code{tar}.@item print@samp{-l} in @code{diff}.@item print-chars@samp{-L} in @code{cmp}.@item print-data-base@samp{-p} in Make.