section 1 · User commands 💻

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X (continued)

xxdiff(1)a graphical file comparator and merge tool✨
xxdiff-scripts(1)Tools that allow automation of tasks with xxdiff✨
xxh128sum(1)print or check xxHash non-cryptographic checksums✨
xxh32sum(1)print or check xxHash non-cryptographic checksums✨
xxh3sum(1)print or check xxHash non-cryptographic checksums✨
xxh64sum(1)print or check xxHash non-cryptographic checksums✨
xxhsum(1)print or check xxHash non-cryptographic checksums✨
xxkb(1)switches and indicates a current keyboard layout.✨
xxx-tblgen-12(1)Target Description to C++ Code✨
xy-plot(1)produce and display a line graph✨
xy2sky(1)Compute RA Dec from X Y using WCS in FITS and IRAF image files✨
xyacc(1)SPP modified yacc compiler compiler [IRAF]✨
xyb_range(1)xyb_range✨
xyconv(1)a converter of files in formats supported by xylib✨
xycpt(1)generate GMT colour palette table (cpt) files from column data.✨
xymon(1)Xymon client communication program✨
xymoncfg(1)output the full hosts.cfg file✨
xymoncmd(1)Run a Xymon command with environment set✨
xymondigest(1)calculate message digests✨
xymongen(1)Xymon webpage generator✨
xymongrep(1)pick out lines in hosts.cfg✨
xymonnet(1)Xymon network test tool✨
xymonnet-again.sh(1)Xymon network re-test tool✨
xymonpage.cgi(1)Utility to show a webpage using header and footer✨
xymonping(1)Xymon ping tool✨
xymonq(1)a frontend to query the Xymon network- and systems-monitor.✨
xynagios(1)adaptor for using Nagios checks with Xymon✨
xyscan(1)data thief for scientist✨
xyz2rsurface(1)converts the x, y and z coordinates on standard input to an R*-tree-indexed database suitable for use with the GfsRefineTerrain object of Gerris.✨
xyzab-tdr-gui(1)Vismach Virtual Machine GUI✨
xyzac-trt-gui(1)Vismach Virtual Machine GUI✨
xyzbc-trt-gui(1)Vismach Virtual Machine GUI✨
xyzsh(1)✨
xz(1)Compress or decompress .xz and .lzma files✨
xzcat(1)Compress or decompress .xz and .lzma files✨
xzcmp(1)compare compressed files✨
xzdec(1)Small .xz and .lzma decompressors✨
xzdiff(1)compare compressed files✨
xzegrep(1)search possibly-compressed files for patterns✨
xzfgrep(1)search possibly-compressed files for patterns✨
xzgrep(1)search possibly-compressed files for patterns✨
xzgv(1)picture viewer for X, with thumbnail-based file selector✨
xzless(1)view xz or lzma compressed (text) files✨
xzmore(1)view xz or lzma compressed (text) files✨
xznew(1)recompress .gz or .tgz files to .xz files✨
xzoom(1)magnify part of X display, with real-time updates✨
xzoom(1x)magnify part of the screen, with fast updates✨

Y

y2racc(1)Yacc grammar to racc grammar✨
y4mcolorbars(1)Create a YUV4MPEG2 stream containing a colorbar test pattern✨
y4mdenoise(1)Motion-compensating YUV4MPEG-frame denoiser✨
y4mscaler(1)Scale/crop/translate a YUV4MPEG2 stream✨
y4mtopnm(1)Convert a YUV4MPEG2 stream to PNM images✨
y4mtoppm(1)Convert YUV4MPEG2 stream to PPM images✨
y4munsharp(1)Unsharp filter for YUV4MPEG2 streams✨
yabai(1)window manager✨
yabar(1)a modern and lightweight status bar for X window managers.✨
yabasic(1)yet another Basic✨
yabause(1)Yet Another Buggy And Uncomplete Saturn Emulator✨
yabause-gtk(1)Yet Another Buggy And Uncomplete Saturn Emulator✨
yabause-qt(1)Yet Another Buggy And Uncomplete Saturn Emulator✨
yac2ncid(1)YAC server to NCID server gateway✨
yacas(1)Yet Another Computer Algebra System✨
yacas_client(1)small and flexible general-purpose computer algebra system✨
yacc(1)GNU Project parser generator✨
yacc(1p)yet another compiler compiler (DEVELOPMENT)✨
yacc(1plan9)yet another compiler-compiler✨
yacc(1posix)yet another compiler compiler (DEVELOPMENT)✨
yacg(1)Yet Another Configuration Generator✨
yacpi(1)Yet Another Configuration and Power Interface✨
YACReader(1)launch YACReader application.✨
YACReaderLibrary(1)launch YACReaderLibrary application.✨
yad(1)display GTK+ dialogs from shell scripts or command-line✨
yad-tools(1)show some miscellaneous stuff.✨
yade(1)manual page for Yade version: 2026.1.0✨
yade-batch(1)manual page for Using python version: 3.14.6 (main, Jun 10 2026, 18:54:31) [GCC 15.2.0]✨
yadm(1)Yet Another Dotfiles Manager✨
yaegi(1)Yet Another Elegant Go Interpreter✨
yafc(1)Yet another FTP client✨
yaft(1)yet another framebuffer terminal✨
yagf(1)graphical interface for cuneiform and tesseract✨
yaggo(1)generate command line parser using getopt_long✨
yagi(1)Yagi-Uda project antenna current calculator✨
yagv(1)Visualize 3D-printing G-code files✨
yaha(1)find split-read mappings on single-end queries✨
yahoo(1sr)surfraw(1) search tools✨
yahooquote(1p)Get stock quotes from Yahoo!✨
yahtzeesharp(1)sort of poker with dice and less money✨
yaku-getzone(1)zone transfer (AXFR) tool for yaku-ns✨
yaku-ns(1)small and simple DNS server✨
yambar(1)modular status panel for X11 and Wayland✨
yamdi(1)yet another metadata injector (flv)✨
yaml2ini(1)Converts YAML files into INI-like configuration files.✨
yaml2po(1)Convert YAML files to Gettext PO localization files.✨
yaml2po-3.13(1)Convert YAML files to Gettext PO localization files.✨
yaml2xml(1)XMLify✨
yaml_to_db(1)convert a subset of YAML into fsdb✨
yamlfix(1)A simple opinionated yaml formatter that keeps your comments!✨
yamllint(1)Linter for YAML files✨
yample(1)Yet Another Mail Processing Language.✨
yanagiba(1)Filters low quality Oxford Nanopore reads basecalled with Albacore✨
yancy(1)Start the standalone Yancy web application✨
yandex(1sr)surfraw(1) search tools✨
yangcli(1)YANG-based NETCONF-over-SSH client application✨
yangdump(1)validate YANG modules and convert them to different formats✨
yanglint(1)YANG lint tool✨
yangre(1)YANG regular expression processor✨
yank(1)yank terminal output to clipboard✨
yank(1e)Add a sequence reference (a full USA) to a list file✨
yank-cli(1)yank terminal output to clipboard✨
yanosim(1)Read simulator for nanopore DRS datasets.✨
yapet(1)text based password manager✨
yapet2csv(1)convert YAPET file to CSV file✨
yapf3(1)Python code formatter✨
yapp(1)A perl frontend to the Parse::Yapp module✨
yapp(1p)A perl frontend to the Parse::Yapp module✨
yapps2(1)generate python parser code from grammar description file✨
yapra(1)pluggable RSS/Atom feed aggregator✨
yaps(1)converts an abc file to a PostScript file✨
yara(1)find files matching patterns and rules written in a special- purpose language.✨
yara_indexer(1)Yara Indexer✨
yara_mapper(1)Yara Mapper✨
yarac(1)compile rules to yara✨
yard(1)documentation tool for Ruby✨
yardoc(1)Ruby tool to generate documentation for the Ruby programming language✨
yaret(1)Yet another Ripper Encoder Tagger✨
yarn(1)scenario testing of Unix command line tools✨
yarnpkg(1)Yarn: Fast, reliable, and secure dependency management✨
yarsync(1)a file synchronization and backup tool✨
yash(1)a POSIX-compliant command line shell✨
yaskkserv_hairy(1)Yet Another SKK SERVer (feature-rich version)✨
yaskkserv_make_dictionary(1)dictionary converter for yaskkserv✨
yaskkserv_normal(1)Yet Another SKK SERVer (generic version)✨
yaskkserv_simple(1)Yet Another SKK SERVer (simple version)✨
yasm(1)The Yasm Modular Assembler✨
yasr(1)(Yet Another Screen Reader) is an attempt at a lightweight, portable screen reader.✨
yasw(1)an application used to correct images taken with a camera while scanning a book✨
yat2m(1)Yet Another Texinfo to Man Converter 1.38✨
yath(1)Primary Command Line Interface (CLI) for Test2::Harness✨
yath(1p)Primary Command Line Interface (CLI) for Test2::Harness✨
yatm(1)Yet Another Time Machine✨
yavta(1)Yet Another V4L2 Test Application✨
yaws(1)yet another webserver✨
yaz-asncomp(1)YAZ ASN.1 compiler✨
yaz-client(1)Z39.50/SRU client for implementors✨
yaz-config(1)Script to get information about YAZ.✨
yaz-iconv(1)YAZ Character set conversion utility✨
yaz-icu(1)YAZ ICU utility✨
yaz-illclient(1)ILL client✨
yaz-json-parse(1)YAZ JSON parser✨
yaz-marcdump(1)MARC record dump utility✨
yaz-record-conv(1)YAZ Record Conversion Utility✨
yaz-url(1)YAZ URL fetch utility✨
yazc(1)yet another zip cracker✨
yazi(1)blazingly fast terminal file manager✨
yazpp-config(1)Script to get information about YAZ++.✨
yb(1)Secure blob storage on a YubiKey✨
yb-fetch(1)Retrieve one or more blobs✨
yb-format(1)Provision PIV objects and optionally generate an ECDH key✨
yb-fsck(1)Filesystem check — dump store metadata✨
yb-list(1)List blobs (alias: ls)✨
yb-list-readers(1)List PC/SC readers✨
yb-remove(1)Remove a blob (alias: rm)✨
yb-rotate-management-key(1)Replace the management key with a random one, kept on the YubiKey and unlocked by the PIN (the store is kept)✨
yb-select(1)Interactively select a YubiKey and print its serial number✨
yb-self-test(1)Run a destructive end-to-end self-test on real hardware✨
yb-store(1)Store a blob on the YubiKey✨
ybmtopbm(1)convert a Bennet Yee "face" file to PBM✨
ycmd(1)code-completion and comprehension server✨
ydotool(1)command-line /dev/uinput automation tool✨
ydpdict(1)an interface for Collins and Langenscheidt dictionaries✨
ydump(1)JSON pretty printer✨
yeahconsole(1)drop-down X terminal emulator wrapper✨
yelp(1)browse system documentation✨
yes(1)output a string repeatedly until killed✨
yes(1ppt)print out a string till doomsday✨
yesterday(1)print file names from the dump✨
yexpand(1)tool to expand environment variables in Nypatchy cradles✨
yforth(1)a small, free Forth implementation✨
yggctl(1)control and interact with yggd✨
yggd(1)connect the system to the network in order to send and receive messages✨
yi(1)text editor extensible in Haskell✨
yices(1)the Yices SMT solver for the Yices language✨
yices-sat(1)the Yices Sat solver✨
yices-smt(1)the Yices SMT solver for the SMT-LIB 1.2 language✨
yices-smt2(1)the Yices SMT solver for the SMT-LIB 2 language✨
ykchalresp(1)Perform challenge-response operation with YubiKey✨
ykclient(1)YubiCloud One-Time-Password Validation Client✨
ykgenerate(1)construct and encrypt an OTP from given data✨
ykinfo(1)Get basic information from a YubiKey✨
ykls(1)go-ykpiv go-ykpiv is a high level cgo wrapper around libykpiv.so.1 that implements an idiomatic go API fit for use when applications need to communicate with a Yubikey in PIV mode.✨
ykman(1)YubiKey Manager (ykman)✨
ykman-gui(1)YubiKey Manager (GUI version)✨
ykneomgr(1)YubiKey NEO management tool✨
ykocli(1)Front end script to facilitate obtainment of TOTP tokens from ykman✨
ykpamcfg(1)Manage user settings for the Yubico PAM module✨
ykparse(1)decrypt and show information inside a YubiKey OTP✨
ykpersonalize(1)personalize YubiKey OTP tokens✨
ykushcmd(1)control application for Yepkit YKUSH Switchable USB Hub board✨
ykval-checksum-clients(1)Calculate a checksum of all Client Info data.✨
ykval-checksum-deactivated(1)Calculate a checksum of deactivated YubiKeys✨