Comtxt


 * ab - Apache HTTP server benchmarking tool
 * ar - create, modify, and extract from archives
 * as - the portable GNU assembler.
 * bc - An arbitrary precision calculator language
 * cc - GNU project C and C++ compiler
 * cp - copy files and directories
 * dc - an arbitrary precision calculator
 * dd - convert and copy a file
 * df - report file system disk space usage
 * du - estimate file space usage
 * ed - line-oriented text editor
 * ex - Vi IMproved, a programmer's text editor
 * fs - Linux filesystem types: ext, ext2, ext3, ext4...
 * go - tool for managing Go source code
 * gs - Ghostscript (PostScript and PDF language inte...
 * hd - ASCII, decimal, hexadecimal, octal dump
 * hd - MFM/IDE hard disk devices
 * id - print real and effective user and group IDs
 * ip - Linux IPv4 protocol implementation
 * ip - show / manipulate routing, network devices, i...
 * iw - show / manipulate wireless devices and their ...
 * ld - The GNU linker
 * ln - make links between files
 * lp - print files
 * lp - line printer devices
 * ls - list directory contents
 * lz - gunzips and shows a listing of a gzip'd tar'd...
 * mc - Visual shell for Unix-like systems.
 * mf - Metafont, a language for font and logo design
 * mt - control magnetic tape drive operation
 * mv - move (rename) files
 * nc - arbitrary TCP and UDP connections and listens
 * nl - number lines of files
 * nm - list symbols from object files
 * od - dump files in octal and other formats
 * pr - convert text files for printing
 * ps - report a snapshot of the current processes.
 * ri - Ruby API reference front end
 * rm - remove files or directories
 * sc - spreadsheet calculator
 * sd - driver for SCSI disk drives
 * sg - execute command as different group ID
 * sh - command interpreter (shell)
 * ss - another utility to investigate sockets
 * st - SCSI tape device
 * su - change user ID or become superuser
 * tc - show / manipulate traffic control settings
 * tr - translate or delete characters
 * ts - timestamp input
 * ua - Enable or disable Ubuntu Advantage offerings ...
 * ul - do underlining
 * uz - gunzips and extracts a gzip'd tar'd archive
 * vi - Vi IMproved, a programmer's text editor
 * wc - print newline, word, and byte counts for each...
 * xz - Compress or decompress .xz and .lzma files
 * acl - Access Control Lists
 * aio - POSIX asynchronous I/O overview
 * apg - generates several random passwords
 * apt - command-line interface
 * arp - Linux ARP kernel module.
 * arp - manipulate the system ARP cache
 * asy - Asymptote: a script-based vector graphics lan...
 * ati - ATI video driver
 * awk - pattern scanning and text processing language
 * cal - displays a calendar and the date of Easter
 * cat - concatenate files and print on the standard o...
 * cmp - compare two files byte by byte
 * col - filter reverse line feeds from input
 * cpp - The C Preprocessor
 * cut - remove sections from each line of files
 * cvt - calculate VESA CVT mode lines
 * ddp - Linux AppleTalk protocol implementation
 * deb - Debian binary package format
 * dfc - report file system space usage information wi...
 * dia - a diagram drawing program
 * dig - DNS lookup utility
 * dir - list directory contents
 * dsc - Debian source packages' control file format
 * dwp - The DWARF packaging utility
 * ebb - extract bounding box information from graphic...
 * elf - format of Executable and Linking Format (ELF)...
 * env - run a program in a modified environment
 * eog - a GNOME image viewer
 * eqn - format equations for troff or MathML
 * erb - Ruby Templating
 * exa - new 2D acceleration architecture for X.Org
 * fmt - simple optimal text formatter
 * frm - display From: lines.
 * ftm - feature test macros
 * ftp - Internet file transfer program
 * gcc - GNU project C and C++ compiler
 * gem - frontend to RubyGems, the Ruby package manager
 * gio - GIO commandline tool
 * git - the stupid content tracker
 * gpg - OpenPGP encryption and signing tool
 * gtf - calculate VESA GTF mode lines
 * ipc - System V interprocess communication mechanisms
 * irb - Interactive Ruby Shell
 * jjs - Invokes the Nashorn engine.
 * lcf - Determine which of the historical versions of...
 * ldd - print shared object dependencies
 * lpc - line printer control program
 * lpq - show printer queue status
 * lpr - print files
 * lvm - LVM2 tools
 * lvs - Display information about logical volumes
 * mag - computes TeX fontsizes and magsteps
 * man - macros to format man pages
 * man - an interface to the on-line reference manuals
 * mcd - change MSDOS directory
 * mdu - display the amount of space occupied by an MS...
 * mem - system memory, kernel memory and system ports
 * mft - translate Metafont or MetaPost code to TeX co...
 * mmd - make an MSDOS subdirectory
 * mpv - a media player
 * mrd - remove an MSDOS subdirectory
 * msr - x86 CPU MSR access device
 * mtr - a network diagnostic tool
 * nss - Name Service Switch configuration file
 * PAM - Pluggable Authentication Modules for Linux
 * pam - Pluggable Authentication Modules for Linux
 * pam - portable arbitrary map file format
 * pan - a GTK+ based news reader
 * par - filter for reformatting paragraphs
 * pbm - portable bitmap file format
 * pdb - the Python debugger
 * pee - tee standard input to pipes
 * pgm - portable graymap file format
 * php - PHP Command Line Interface 'CLI'
 * pic - compile pictures for troff or TeX
 * pip - A tool for installing and managing Python pac...
 * pnm - portable anymap file format
 * pon - starts up, shuts down or lists the log of PPP...
 * ppm - portable pixmap file format
 * psc - prepare sc files
 * pts - pseudoterminal master and slave
 * ptx - produce a permuted index of file contents
 * pty - pseudoterminal interfaces
 * pvs - Display information about physical volumes
 * pwd - print name of current/working directory
 * qtm - Desktop client for content management systems
 * ram - ram disk device
 * raw - Linux IPv4 raw sockets
 * raw - bind a Linux raw character device
 * rcp - secure copy (remote file copy program)
 * rec - Sound eXchange, the Swiss Army knife of audio...
 * red - line-oriented text editor
 * rev - reverse lines characterwise
 * rmt - remote magnetic tape server
 * rpc - RPC program number data base
 * rsh - OpenSSH SSH client (remote login program)
 * rtc - real-time clock
 * scp - secure copy (remote file copy program)
 * sed - stream editor for filtering and transforming ...
 * see - execute programs via entries in the mailcap file
 * seq - print a sequence of numbers
 * sln - create symbolic links
 * sox - Sound eXchange, the Swiss Army knife of audio...
 * ssh - OpenSSH SSH client (remote login program)
 * sum - checksum and count the blocks in a file
 * tac - concatenate and print files in reverse
 * tar - an archiving utility
 * tbl - format tables for troff
 * tcp - TCP protocol
 * tee - read from standard input and write to standar...
 * tex - text formatting and typesetting
 * tgz - makes a gzip'd tar archive
 * tic - the terminfo entry-description compiler
 * tie - merge or apply WEB change files
 * toe - table of (terminfo) entries
 * top - display Linux processes
 * tty - print the file name of the terminal connected...
 * tty - controlling terminal
 * ucf - Update Configuration File: preserve user chan...
 * udp - User Datagram Protocol for IPv4
 * ufw - program for managing a netfilter firewall
 * uri - uniform resource identifier (URI), including ...
 * url - uniform resource identifier (URI), including ...
 * urn - uniform resource identifier (URI), including ...
 * vcs - virtual console memory
 * vgs - Display information about volume groups
 * vim - Vi IMproved, a programmer's text editor
 * vlc - the VLC media player
 * who - show who is logged on
 * xev - print contents of X events
 * xfd - display all the characters in an X font
 * xxd - make a hexdump or do the reverse.
 * yes - output a string repeatedly until killed
 * zic - timezone compiler
 * zip - package and compress (archive) files
 * acct - process accounting file
 * aptd - package managing daemon proving a D-Bus inter...
 * arch - print machine hardware name (same as uname -m)
 * arpd - userspace arp daemon.
 * bash - GNU Bourne-Again SHell
 * bbox - prints out the bounding box of a rawppm or ra...
 * boot - System bootup process based on UNIX System V ...
 * calc - arbitrary precision calculator
 * cewl - custom word list generator
 * chat - Automated conversational script with a modem
 * chfn - change real user name and information
 * chrt - manipulate the real-time attributes of a process
 * chsh - change login shell
 * chvt - change foreground virtual terminal
 * comm - compare two sorted files line by line
 * core - core dump file
 * cpan - easily interact with CPAN from the command line
 * cpgr - copy with locking the given file to the passw...
 * cpio - copy files to and from archives
 * cppw - copy with locking the given file to the passw...
 * crda - send to the kernel a wireless regulatory doma...
 * cron - daemon to execute scheduled commands (Vixie C...
 * ctie - merge or apply CWEB change files
 * cups - a standards-based, open source printing system
 * curl - transfer a URL
 * cvlc - the VLC media player
 * cweb - translate CWEB to C and/or TeX
 * dash - command interpreter (shell)
 * date - print or set the system date and time
 * delv - DNS lookup and validation utility
 * dict - DICT Protocol Client
 * diff - compare files line by line
 * dkms - Dynamic Kernel Module Support
 * dpkg - package manager for Debian
 * echo - display a line of text
 * edit - execute programs via entries in the mailcap file
 * etex - extended (plain) TeX
 * exim - a Mail Transfer Agent
 * expr - evaluate expressions
 * fifo - first-in first-out special file, named pipe
 * file - determine file type
 * find - search for files in a directory hierarchy
 * flac - Free Lossless Audio Codec
 * fold - wrap each input line to fit in specified width
 * free - Display amount of free and used memory in the...
 * from - print names of those who have sent mail
 * fsck - check and repair a Linux filesystem
 * full - always full device
 * fuse - Filesystem in Userspace (FUSE) device
 * mount.fuse - format and options for the fuse file systems
 * gawk - pattern scanning and processing language
 * gcov - coverage testing tool
 * genl - generic netlink utility frontend
 * geqn - format equations for troff or MathML
 * gimp - an image manipulation and paint program.
 * glob - globbing pathnames
 * gold - The GNU ELF linker
 * gpgv - Verify OpenPGP signatures
 * gpic - compile pictures for troff or TeX
 * grep - print lines matching a pattern
 * grog - guess options for a following groff command
 * gsbj - Format and print text for BubbleJet printer u...
 * gsdj - Format and print text for DeskJet printer usi...
 * gslj - Format and print text for LaserJet printer us...
 * gslp - Format and print text using ghostscript
 * gsnd - Run ghostscript (PostScript and PDF engine) w...
 * gtbl - format tables for troff
 * gvfs - GIO virtual file system
 * gzip - compress or expand files
 * halt - Halt, power-off or reboot the machine
 * head - output the first part of files
 * hier - description of the filesystem hierarchy
 * host - DNS lookup utility
 * hpsa - HP Smart Array SCSI driver
 * htop - interactive process viewer
 * hwdb - Hardware Database
 * icmp - Linux IPv4 ICMP kernel module.
 * ifne - Run command if the standard input is not empty
 * info - readable online documentation
 * info - read Info documents
 * init - systemd system and service manager
 * inxi - Command line system information script for co...
 * ipcs - show information on IPC facilities
 * java - Launches a Java application.
 * join - join lines of two files on a common field
 * kill - send a signal to a process
 * kmem - system memory, kernel memory and system ports
 * kmod - Program to manage Linux Kernel modules
 * lame - create mp3 audio files
 * last - show a listing of last logged in users
 * less - opposite of more
 * libc - overview of standard C libraries on Linux
 * link - call the link function to create a link to a ...
 * lirc - lirc devices
 * look - display lines beginning with a given string
 * loop - loop devices
 * lprm - cancel print jobs
 * lshw - list hardware
 * lsns - list namespaces
 * lsof - list open files
 * luit - Locale and ISO 2022 support for Unicode termi...
 * lynx - a general purpose distributed information bro...
 * lzma - Compress or decompress .xz and .lzma files
 * mail - process mail messages
 * maim - make image
 * make - GNU make utility to maintain groups of programs
 * mawk - pattern scanning and text processing language
 * mcat - dump raw disk image
 * mdel - delete an MSDOS file
 * mdig - DNS pipelined lookup utility
 * mdir - display an MSDOS directory
 * mdoc - quick reference guide for the -mdoc macro pac...
 * mesg - display (or do not display) messages from oth...
 * mkfs - build a Linux filesystem
 * more - file perusal filter for crt viewing
 * motd - message of the day
 * mren - rename an existing MSDOS file
 * mzip - change protection mode and eject disk on Zip/...
 * nano - Nano's ANOther editor, an enhanced free Pico ...
 * nawk - pattern scanning and text processing language
 * ncal - displays a calendar and the date of Easter
 * neqn - format equations for ascii output
 * nice - run a program with modified scheduling priority
 * nptl - Native POSIX Threads Library
 * nrss - An ncurses RSS reader
 * null - data sink
 * numa - overview of Non-Uniform Memory Architecture
 * nvlc - the VLC media player
 * open - start a program on a new virtual terminal (VT).
 * perl - The Perl 5 language interpreter
 * pftp - Internet file transfer program
 * phar - PHAR (PHP archive) command line tool
 * pico - Nano's ANOther editor, an enhanced free Pico ...
 * ping - send ICMP ECHO_REQUEST to network hosts
 * pipe - overview of pipes and FIFOs
 * play - Sound eXchange, the Swiss Army knife of audio...
 * pldd - display dynamic shared objects linked into a ...
 * plog - starts up, shuts down or lists the log of PPP...
 * pmap - report memory map of a process
 * poff - starts up, shuts down or lists the log of PPP...
 * port - system memory, kernel memory and system ports
 * ppdc - cups ppd compiler (deprecated)
 * ppdi - import ppd files (deprecated)
 * pppd - Point-to-Point Protocol Daemon
 * proc - process information pseudo-filesystem
 * ptar - a tar-like program written in perl
 * ptmx - pseudoterminal master and slave
 * pvck - Check the consistency of physical volume(s)
 * pwck - verify integrity of password files
 * pwdx - report current working directory of a process
 * qvlc - the VLC media player
 * rake - make-like build utility for Ruby
 * rarp - manipulate the system RARP table
 * rdma - RDMA tool
 * rdoc - Generate documentation from Ruby script files
 * rmid - Starts the activation system daemon that enab...
 * rtpr - replace backslashes with newlines.
 * ruby - Interpreted object-oriented scripting language
 * runq - a Mail Transfer Agent
 * rvim - Vi IMproved, a programmer's text editor
 * rvlc - the VLC media player
 * sane - Scanner Access Now Easy: API for accessing sc...
 * sftp - secure file transfer program
 * shuf - generate random permutations
 * size - list section sizes and total size.
 * slop - select operation
 * sort - sort lines of text files
 * soxi - Sound eXchange Information, display sound fil...
 * stat - display file or file system status
 * stty - change and print terminal line settings
 * sudo - execute a command as another user
 * svlc - the VLC media player
 * sync - Synchronize cached writes to persistent storage
 * tabs - set tabs on a terminal
 * tail - output the last part of files
 * term - format of compiled term file.
 * term - conventions for naming terminal types
 * test - check file types and compare values
 * time - overview of time and timers
 * time - run programs and summarize system resource usage
 * tipc - a TIPC configuration and management tool
 * tldr - manual page for tldr 0.2.3
 * tput - initialize a terminal or query terminfo database
 * tree - list contents of directories in a tree-like f...
 * true - do nothing, successfully
 * tset - terminal initialization
 * ttyS - serial terminal lines
 * ucfq - query the ucf database
 * ucfr - Update Configuration File Registry: associate...
 * udev - Dynamic device management
 * uniq - report or omit repeated lines
 * unix - sockets for local interprocess communication
 * unxz - Compress or decompress .xz and .lzma files
 * utmp - login records
 * vcsa - virtual console memory
 * vcut - cuts Ogg Vorbis files
 * vdir - list directory contents
 * vdso - overview of the virtual ELF dynamic shared ob...
 * vesa - Generic VESA video driver
 * veth - Virtual Ethernet Device
 * vgck - Check the consistency of volume group(s)
 * view - Vi IMproved, a programmer's text editor
 * vigr - edit the password, group, shadow-password or ...
 * vipe - edit pipe
 * vipw - edit the password, group, shadow-password or ...
 * vlna - adds tilde after each non-syllabic preposition
 * wall - write a message to all users
 * wget - The non-interactive network downloader.
 * wish - Simple windowing shell
 * wtmp - login records
 * xdvi - DVI Previewer for the X Window System
 * Xorg - X11R7 X server
 * xrdb - X server resource database utility
 * xset - user preference utility for X
 * yelp - browse system documentation
 * zcat - compress or expand files
 * zcmp - compare compressed files
 * zero - data sink
 * zlib - compression/decompression library
 * znew - recompress .Z files to .gz files
 * zrun - automatically uncompress arguments to command
 * acpid - Advanced Configuration and Power Interface ev...
 * aleph - extended Unicode TeX
 * allcm - force the most important Computer-Modern-font...
 * allec - force the most important ec-fonts to be calcu...
 * amidi - read from and write to ALSA RawMIDI ports
 * aplay - command-line sound recorder and player for AL...
 * ascii - ASCII character set encoded in octal, decimal...
 * ascii - report character aliases
 * bccmd - Utility for the CSR BCCMD interface
 * blkid - locate/print block device attributes
 * btmon - Bluetooth monitor
 * bwrap - container setup utility
 * bzcat - decompresses files to stdout
 * bzcmp - compare bzip2 compressed files
 * bzexe - compress executable files in place
 * capsh - capability shell wrapper
 * cciss - HP Smart Array block driver
 * chacl - change the access control list of a file or d...
 * chage - change user password expiry information
 * chcon - change file security context
 * chcpu - configure CPUs
 * chgrp - change group ownership
 * chmem - configure memory
 * chmod - change file mode bits
 * chown - change file owner and group
 * cjpeg - compress an image file to a JPEG file
 * cksum - checksum and count the bytes in a file
 * clear - clear the terminal screen
 * colrm - remove columns from a file
 * cpuid - x86 CPUID access device
 * cupsd - cups scheduler
 * detex - a filter to strip TeX commands from a .tex file.
 * dictl - wrapper script for dict that permits using ut...
 * djpeg - decompress a JPEG file to an image file
 * dmesg - print or control the kernel ring buffer
 * dvihp - convert a TeX DVI file to Hewlett-Packard PCL
 * dvilj - convert a TeX DVI file to PCL, for HP LaserJe...
 * dvips - convert a TeX DVI file to PostScript
 * egrep - print lines matching a pattern
 * eject - eject removable media
 * epoll - I/O event notification facility
 * errno - look up errno names and descriptions
 * faked - daemon that remembers fake ownership/permissi...
 * false - do nothing, unsuccessfully
 * fbdev - video driver for framebuffer device
 * fcitx - Free Chinese Input Toy of X - a Chinese IME f...
 * fdisk - manipulate disk partition table
 * fgrep - print lines matching a pattern
 * flock - manage locks from shell scripts
 * fsadm - utility to resize or check filesystem on a de...
 * fstab - static information about the filesystems
 * fuser - identify processes using files or sockets
 * futex - fast user-space locking
 * gdbus - Tool for working with D-Bus objects
 * gdebi - Simple tool to install deb files
 * gdisk - Interactive GUID partition table (GPT) manipu...
 * gedit - text editor for the GNOME Desktop
 * getty - alternative Linux getty
 * glibc - overview of standard C libraries on Linux
 * gofmt - formats Go programs
 * gpgsm - CMS encryption and signing tool
 * gprof - display call graph profile data
 * groff - front-end for the groff document formatting s...
 * grops - PostScript driver for groff
 * group - user group file
 * grpck - verify integrity of group files
 * gtklp - print files via CUPS
 * gvfsd - Main daemon for gvfs
 * gzexe - compress executable files in place
 * hosts - static table lookup for hostnames
 * htdbm - Manipulate DBM password databases
 * iconv - convert text from one character encoding to a...
 * ifcfg - simplistic script which replaces ifconfig IP ...
 * igawk - gawk with include files
 * inimf - Metafont, a language for font and logo design
 * inode - file inode information
 * intel - Intel integrated graphics chipsets
 * intro - introduction to system calls
 * intro - introduction to games
 * intro - introduction to library functions
 * intro - introduction to file formats and filesystems
 * intro - introduction to overview and miscellany section
 * intro - introduction to user commands
 * intro - introduction to special files
 * intro - introduction to administration and privileged...
 * ipcmk - make various IPC resources
 * ipcrm - remove certain IPC resources
 * issue - prelogin message and identification file
 * iwspy - Get wireless statistics from specific nodes
 * latex - structured text formatting and typesetting
 * lastb - show a listing of last logged in users
 * lckdo - run a program with a lock held
 * login - begin session on the system
 * loweb - LibreOffice office suite
 * lsblk - list block devices
 * lscpu - display information about the CPU architecture
 * lsipc - show information on IPC facilities currently ...
 * lsmem - list the ranges of available memory with thei...
 * lsmod - Show the status of modules in the Linux Kernel
 * lspci - list all PCI devices
 * lsusb - list USB devices
 * lzcat - Compress or decompress .xz and .lzma files
 * lzcmp - compare compressed files
 * magic - file command's magic pattern file
 * mailq - a Mail Transfer Agent
 * mailx - process mail messages
 * mandb - create or update the manual page index caches
 * mcomp - Compares two files using mtools
 * mcopy - copy MSDOS files to/from Unix
 * midid - Raw Midi interpreter
 * minfo - print the parameters of a MSDOS filesystem
 * mkdir - make directories
 * mknod - make block or character special files
 * mkocp - frontend to otp2ocp
 * mkofm - front end to mktextfm
 * mmcli - Control and monitor the ModemManager
 * mmove - move or rename an MSDOS file or subdirectory
 * mount - mount a filesystem
 * mouse - serial mouse interface
 * mpost - MetaPost, a system for creating graphics
 * mtype - display contents of an MSDOS file
 * mxtar - Wrapper for using GNU tar directly from a flo...
 * mysql - the MySQL command-line client
 * namei - follow a pathname until a terminal point is f...
 * netrc - user configuration for ftp
 * nmcli - command-line tool for controlling NetworkManager
 * nmtui - Text User Interface for controlling NetworkMa...
 * nohup - run a command immune to hangups, with output ...
 * nproc - print the number of processing units available
 * nroff - emulate nroff command with groff
 * nstat - network statistics tools.
 * pacat - Play back or record raw or encoded audio stre...
 * pacmd - Reconfigure a PulseAudio sound server during ...
 * pactl - Control a running PulseAudio sound server
 * padsp - PulseAudio OSS Wrapper
 * pager - opposite of more
 * pamon - Play back or record raw or encoded audio stre...
 * parec - Play back or record raw or encoded audio stre...
 * partx - tell the kernel about the presence and number...
 * paste - merge lines of files
 * patch - apply a diff file to an original
 * pbget - compress and encode arbitrary files to pasteb...
 * pbput - compress and encode arbitrary files to pasteb...
 * pgrep - look up or signal processes based on name and...
 * pidof - find the process ID of a running program.
 * pinky - lightweight finger
 * pkeys - overview of Memory Protection Keys
 * pkill - look up or signal processes based on name and...
 * pmxab - a MusiXTeX preprocessor
 * ppdpo - ppd message catalog generator (deprecated)
 * ppmtv - make a portable pixmap look like taken from a...
 * print - execute programs via entries in the mailcap file
 * prove - Run tests through a TAP harness.
 * proxy - Display the proxy server that should be used ...
 * psicc - little cms PostScript converter.
 * pslog - report current logs path of a process
 * psnup - multiple pages per sheet
 * pydoc - the Python documentation tool
 * qdbus - a communication-interface for qt-based applic...
 * rbash - restricted bash, see bash
 * regex - POSIX.2 regular expressions
 * reset - terminal initialization
 * rgrep - print lines matching a pattern
 * ripit - (unknown subject)
 * rmail - a Mail Transfer Agent
 * rmdir - remove empty directories
 * rmmod - Simple program to remove a module from the Li...
 * rnano - a restricted nano
 * route - show / manipulate the IP routing table
 * rsmtp - a Mail Transfer Agent
 * rsync - a fast, versatile, remote (and local) file-co...
 * rtmon - listens to and monitors RTnetlink
 * rview - Vi IMproved, a programmer's text editor
 * sched - overview of CPU scheduling
 * scrot - capture a screenshot using imlib2
 * sdiff - side-by-side merge of file differences
 * shred - overwrite a file to hide its contents, and op...
 * sieve - a mail filtering tool.
 * skill - send a signal or report process status
 * sleep - delay for a specified amount of time
 * snice - send a signal or report process status
 * split - split a file into pieces
 * sprof - read and display shared object profiling data
 * spufs - SPU filesystem
 * strip - Discard symbols from object files.
 * svipc - System V interprocess communication mechanisms
 * sysfs - a filesystem for exporting kernel objects
 * tclsh - Simple shell containing Tcl interpreter
 * tlmgr - the native TeX Live Manager
 * tload - graphic representation of system load average
 * touch - change file timestamps
 * troff - the troff processor of the groff text formatt...
 * trust - Tool for operating on the trust policy store
 * tsort - perform topological sort
 * uname - print system information
 * units - decimal and binary prefixes
 * unrar - extract files from rar archives
 * unstr - dump strings in pointer order
 * unzip - list, test and extract compressed files in a ...
 * users - print the user names of users currently logge...
 * utmpx - login records
 * uuidd - UUID generation daemon
 * vidir - edit directory
 * vsock - Linux VSOCK address family
 * watch - execute a program periodically, showing outpu...
 * wdctl - show hardware watchdog status
 * weave - translate WEB to TeX
 * which - locate a command
 * wodim - write data to optical disk media
 * write - send a message to another user
 * wvtag - metadata utility for wavpack files
 * xargs - build and execute command lines from standard...
 * xattr - Extended attributes
 * xauth - X authority file utility
 * xclip - command line interface to X selections (clipb...
 * xhost - server access control program for X
 * xkill - kill a client by its X resource
 * xprop - property displayer for X
 * xzcat - Compress or decompress .xz and .lzma files
 * xzcmp - compare compressed files
 * zdiff - compare compressed files
 * zdump - timezone dumper
 * zgrep - search possibly compressed files for a regula...
 * zless - file perusal filter for crt viewing of compre...
 * zmore - file perusal filter for crt viewing of compre...