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NAN (3): floating-point constants
aio_cancel (3): cancel an outstanding asynchronous I/O request
applygnupgdefaults (8): Run gpgconf --apply-defaults for all users.
attributes (7): POSIX safety concepts
basename (3): parse pathname components
binfmt.d (5): Configure additional binary formats for executables at...
bounce (8postfix): Postfix delivery status reports
byobu-layout (1): Save and restore byobu-tmux layouts
byobu-reconnect-sockets (1): Sourcable script that updates GPG_AGENT_INFO an...
cacheflush (2): flush contents of instruction and/or data cache
catan (3): complex arc tangents
catanf (3): complex arc tangents
catanh (3): complex arc tangents hyperbolic
catanhf (3): complex arc tangents hyperbolic
catanhl (3): complex arc tangents hyperbolic
catanl (3): complex arc tangents
catchsegv (1): Catch segmentation faults in programs
catgets (3): get message from a message catalog
cfsetspeed (3): get and set terminal attributes, line control, get and...
CGI (3pm): Handle Common Gateway Interface requests and responses
CGI::Session::Test::Default (3pm): Run a suite of tests for a given CGI::Ses...
charsets (7): character set standards and internationalization
chmod (1): change file mode bits
CIRCLEQ_ENTRY (3): implementations of singly-linked lists, singly-linked ...
CIRCLEQ_HEAD (3): implementations of singly-linked lists, singly-linked ...
CIRCLEQ_INIT (3): implementations of singly-linked lists, singly-linked ...
CIRCLEQ_INSERT_AFTER (3): implementations of singly-linked lists, singly-lin...
CIRCLEQ_INSERT_BEFORE (3): implementations of singly-linked lists, singly-li...
CIRCLEQ_INSERT_HEAD (3): implementations of singly-linked lists, singly-link...
CIRCLEQ_INSERT_TAIL (3): implementations of singly-linked lists, singly-link...
CIRCLEQ_REMOVE (3): implementations of singly-linked lists, singly-linked ...
cloud-init-per (1): Run a command with arguments at a specific frequency
column (1): columnate lists
CPU_ALLOC (3): macros for manipulating CPU sets
CPU_ALLOC_SIZE (3): macros for manipulating CPU sets
CPU_AND (3): macros for manipulating CPU sets
CPU_AND_S (3): macros for manipulating CPU sets
CPU_CLR (3): macros for manipulating CPU sets
CPU_CLR_S (3): macros for manipulating CPU sets
CPU_COUNT (3): macros for manipulating CPU sets
CPU_COUNT_S (3): macros for manipulating CPU sets
CPU_EQUAL (3): macros for manipulating CPU sets
CPU_EQUAL_S (3): macros for manipulating CPU sets
CPU_FREE (3): macros for manipulating CPU sets
CPU_ISSET (3): macros for manipulating CPU sets
CPU_ISSET_S (3): macros for manipulating CPU sets
CPU_OR (3): macros for manipulating CPU sets
CPU_OR_S (3): macros for manipulating CPU sets
CPU_SET (3): macros for manipulating CPU sets
CPU_SET_S (3): macros for manipulating CPU sets
CPU_XOR (3): macros for manipulating CPU sets
CPU_XOR_S (3): macros for manipulating CPU sets
CPU_ZERO (3): macros for manipulating CPU sets
CPU_ZERO_S (3): macros for manipulating CPU sets
cpuset (7): confine processes to processor and memory node subsets
cryptdisks_start (8): wrapper around cryptsetup that parses /etc/crypttab.
cryptdisks_stop (8): wrapper around cryptsetup that parses /etc/crypttab.
cryptsetup (8): manage plain dm-crypt and LUKS encrypted volumes
cryptsetup-reencrypt (8): tool for offline LUKS device re-encryption
ctstat (8): unified linux network statistics
cvtsudoers (1): convert between sudoers file formats
DBD::File::Roadmap (3pm): Planned Enhancements for DBD::File and pure Perl D...
DBD::Gofer::Transport::Base (3pm): base class for DBD::Gofer client transports
DBI::Const::GetInfo::ANSI (3pm): ISO/IEC SQL/CLI Constants for GetInfo
DBI::Const::GetInfo::ODBC (3pm): ODBC Constants for GetInfo
DBI::Gofer::Execute (3pm): Executes Gofer requests and returns Gofer responses
DBI::Gofer::Transport::Base (3pm): Base class for Gofer transports
dbus-cleanup-sockets (1): clean up leftover sockets in a directory
defer (8postfix): Postfix delivery status reports
des_modes (7ssl): the variants of DES and other crypto algorithms of Ope...
dir (1): list directory contents
dirname (3): parse pathname components
dl_iterate_phdr (3): walk through list of shared objects
dmstats (8): device-mapper statistics management
dpkg-checkbuilddeps (1): check build dependencies and conflicts
dpkg-maintscript-helper (1): works around known dpkg limitations in maintain...
Dpkg::Changelog::Entry (3perl): represents a changelog entry
Dpkg::Changelog::Entry::Debian (3perl): represents a Debian changelog entry
Dpkg::Control::Tests (3perl): parse files like debian/tests/control
Dpkg::Control::Tests::Entry (3perl): represents a test suite entry
Dpkg::Control::Types (3perl): export CTRL_* constants
Dpkg::Deps::KnownFacts (3perl): list of installed real and virtual packages
Dpkg::Deps::Simple (3perl): represents a single dependency statement
e2scrub (8): check the contents of a mounted ext[234] filesystem
edata (3): end of program segments
end (3): end of program segments
etext (3): end of program segments
faillog (8): display faillog records or set login failure limits
fanotify (7): monitoring filesystem events
fgets (3): input of characters and strings
fgets_unlocked (3): nonlocking stdio functions
fgetspent (3): get shadow password file entry
fgetspent_r (3): get shadow password file entry
fincore (1): count pages of file contents in core
fixparts (8): MBR partition table repair utility
flock (1): manage locks from shell scripts
fputs (3): output of characters and strings
fputs_unlocked (3): nonlocking stdio functions
fstab-decode (8): run a command with fstab-encoded arguments
fts (3): traverse a file hierarchy
fts_children (3): traverse a file hierarchy
fts_close (3): traverse a file hierarchy
fts_open (3): traverse a file hierarchy
fts_read (3): traverse a file hierarchy
fts_set (3): traverse a file hierarchy
fuser (1): identify processes using files or sockets
gdbus (1): Tool for working with D-Bus objects
get_avphys_pages (3): get total and available physical page counts
get_phys_pages (3): get total and available physical page counts
getdents (2): get directory entries
getdents64 (2): get directory entries
getrlimit (2): get/set resource limits
gets (3): get a string from standard input (DEPRECATED)
getservbyname (3): get service entry
getservbyname_r (3): get service entry (reentrant)
getservbyport (3): get service entry
getservbyport_r (3): get service entry (reentrant)
getservent (3): get service entry
getservent_r (3): get service entry (reentrant)
getsid (2): get session ID
getsockname (2): get socket name
getsockopt (2): get and set options on sockets
getspent (3): get shadow password file entry
getspent_r (3): get shadow password file entry
getspnam (3): get shadow password file entry
getspnam_r (3): get shadow password file entry
getsubopt (3): parse suboption arguments from a string
getw (3): input and output of words (ints)
git-add (1): Add file contents to the index
git-bundle (1): Move objects and refs by archive
git-check-mailmap (1): Show canonical names and email addresses of contacts
git-cherry (1): Find commits yet to be applied to upstream
git-cherry-pick (1): Apply the changes introduced by some existing commits
git-count-objects (1): Count unpacked number of objects and their disk consu...
git-diff (1): Show changes between commits, commit and working tree,...
git-fetch (1): Download objects and refs from another repository
git-fetch-pack (1): Receive missing objects from another repository
git-fsck (1): Verifies the connectivity and validity of the objects ...
git-fsck-objects (1): Verifies the connectivity and validity of the objects ...
git-http-push (1): Push objects over HTTP/DAV to another repository
git-ls-tree (1): List the contents of a tree object
git-mailinfo (1): Extracts patch and authorship from a single e-mail mes...
git-mergetool--lib (1): Common Git merge tool shell scriptlets
git-pack-objects (1): Create a packed archive of objects
git-prune (1): Prune all unreachable objects from the object database
git-prune-packed (1): Remove extra objects that are already in pack files
git-push (1): Update remote refs along with associated objects
git-rebase (1): Reapply commits on top of another base tip
git-repack (1): Pack unpacked objects in a repository
git-replace (1): Create, list, delete refs to replace objects
git-rev-list (1): Lists commit objects in reverse chronological order
git-revert (1): Revert some existing commits
git-send-pack (1): Push objects over Git protocol to another repository
git-sh-i18n (1): Git's i18n setup code for shell scripts
git-show (1): Show various types of objects
git-show-branch (1): Show branches and their commits
git-stage (1): Add file contents to the staging area
git-unpack-file (1): Creates a temporary file with a blob's contents
git-unpack-objects (1): Unpack objects from a packed archive
git-update-index (1): Register file contents in the working tree to the index
git-upload-pack (1): Send objects packed back to git-fetch-pack
git-verify-commit (1): Check the GPG signature of commits
gitsubmodules (7): Mounting one repository inside another
gpgcompose (1): Generate a stream of OpenPGP packets
gpgsplit (1): Split an OpenPGP message into packets
grops (1): PostScript driver for groff
grub-mkrelpath (1): make a system path relative to its root
hcp (8): Hot Copy creates point-in-time snapshots of any Linux ...
hosts (5): static table lookup for hostnames
hosts.allow (5): format of host access control files
hosts.deny (5): format of host access control files
hosts.equiv (5): list of hosts and users that are granted "trusted" r c...
hosts_access (5): format of host access control files
hosts_options (5): host access control language extensions
HTML::Element (3pm): Class for objects that represent HTML elements
HTML::Form (3pm): Class that represents an HTML form element
HTML::FormatPS (3pm): Format HTML as PostScript
HTML::Tree::AboutObjects (3pm): - article: "User's View of Object-Oriented M...
HTTP::Config (3pm): Configuration for request and response objects
HTTP::Cookies::Netscape (3pm): Access to Netscape cookies files
HTTP::Request::Common (3pm): Construct common HTTP::Request objects
HUGE_VAL (3): floating-point constants
HUGE_VALF (3): floating-point constants
HUGE_VALL (3): floating-point constants
INFINITY (3): floating-point constants
info (1): read Info documents
infobrowser (1): read Info documents
init-d-script (5): interpreter for short and simple init.d scripts
initramfs-tools (7): an introduction to writing scripts for mkinitramfs
initstate (3): random number generator
initstate_r (3): reentrant random number generator
inotify (7): monitoring filesystem events
intro (5): introduction to file formats and filesystems
IO::Socket::SSL (3pm): SSL sockets with IO::Socket interface
io_cancel (2): cancel an outstanding asynchronous I/O operation
io_getevents (2): read asynchronous I/O events from the completion queue
ioctl_userfaultfd (2): create a file descriptor for handling page faults in ...
ip6tables-legacy (8): iptables using old getsockopt/setsockopt-based kernel api
ip6tables-legacy-restore (8): iptables using old getsockopt/setsockopt-based...
ip6tables-legacy-save (8): iptables using old getsockopt/setsockopt-based ke...
iptables-legacy (8): iptables using old getsockopt/setsockopt-based kernel api
iptables-legacy-restore (8): iptables using old getsockopt/setsockopt-based ...
iptables-legacy-save (8): iptables using old getsockopt/setsockopt-based ker...
irqbalance (1): distribute hardware interrupts across processors on a ...
iscsi_discovery (8): discover iSCSI targets
isgreater (3): floating-point relational tests without exception for NaN
isgreaterequal (3): floating-point relational tests without exception for NaN
isless (3): floating-point relational tests without exception for NaN
islessequal (3): floating-point relational tests without exception for NaN
islessgreater (3): floating-point relational tests without exception for NaN
isunordered (3): floating-point relational tests without exception for NaN
key_decryptsession (3): interfaces to rpc keyserver daemon
key_encryptsession (3): interfaces to rpc keyserver daemon
key_setsecret (3): interfaces to rpc keyserver daemon
kmem (4): system memory, kernel memory and system ports
lastlog (8): reports the most recent login of all users or of a giv...
letsencrypt (1): certbot script documentation
limits.conf (5): configuration file for the pam_limits module
lio_listio (3): initiate a list of I/O requests
LIST_EMPTY (3): implementations of singly-linked lists, singly-linked ...
LIST_ENTRY (3): implementations of singly-linked lists, singly-linked ...
LIST_FIRST (3): implementations of singly-linked lists, singly-linked ...
LIST_FOREACH (3): implementations of singly-linked lists, singly-linked ...
LIST_HEAD (3): implementations of singly-linked lists, singly-linked ...
LIST_HEAD_INITIALIZER (3): implementations of singly-linked lists, singly-li...
LIST_INIT (3): implementations of singly-linked lists, singly-linked ...
LIST_INSERT_AFTER (3): implementations of singly-linked lists, singly-linked...
LIST_INSERT_BEFORE (3): implementations of singly-linked lists, singly-linke...
LIST_INSERT_HEAD (3): implementations of singly-linked lists, singly-linked ...
LIST_NEXT (3): implementations of singly-linked lists, singly-linked ...
LIST_REMOVE (3): implementations of singly-linked lists, singly-linked ...
ls (1): list directory contents
lspgpot (1): extracts the ownertrust values from PGP keyrings and l...
lvm2-activation-generator (8): generator for systemd units to activate LVM v...
LWP::RobotUA (3pm): a class for well-behaved Web robots
Mail::Field::AddrList (3pm): object representation of e-mail address lists
make-first-existing-target (1): runs make on one of several targets
malloc_stats (3): print memory allocation statistics
mem (4): system memory, kernel memory and system ports
mq_getsetattr (2): get/set message queue attributes
Net::SSLeay::Handle (3pm): Perl module that lets SSL (HTTPS) sockets be hand...
netplan-set (8): write netplan YAML configuration snippets to file
netstat (8): Print network connections, routing tables, interface s...
nproc (1): print the number of processing units available
nroff (1): use groff to format documents for TTY devices
nseq (1ssl): create or examine a Netscape certificate sequence
ntfsls (8): list directory contents on an NTFS filesystem
od (1): dump files in octal and other formats
openssl-nseq (1ssl): create or examine a Netscape certificate sequence
openssl-ts (1ssl): Time Stamping Authority tool (client/server)
openssl-tsget (1ssl): Time Stamping HTTP/HTTPS client
outsb (2): port I/O
outsl (2): port I/O
outsw (2): port I/O
pam_limits (8): PAM module to limit resources
pam_rhosts (8): The rhosts PAM module
passphrase-encoding (7ssl): How diverse parts of OpenSSL treat pass phrases ...
pbputs (1): compress and encode arbitrary files to pastebin.com
perlbug (1): how to submit bug reports on Perl
perlthanks (1): how to submit bug reports on Perl
ping (8): send ICMP ECHO_REQUEST to network hosts
ping4 (8): send ICMP ECHO_REQUEST to network hosts
ping6 (8): send ICMP ECHO_REQUEST to network hosts
pldd (1): display dynamic shared objects linked into a process
port (4): system memory, kernel memory and system ports
posixoptions (7): optional parts of the POSIX standard
postcat (1): show Postfix queue file contents
postscreen (8postfix): Postfix zombie blocker
postsuper (1): Postfix superintendent
prlimit (1): get and set process resource limits
prlimit (2): get/set resource limits
vlimit (3): get/set resource limits
prlimit64 (2): get/set resource limits
projects (5): persistent project root definition
prove (1): Run tests through a TAP harness.
prtstat (1): print statistics of a process
psfxtable (1): handle Unicode character tables for console fonts
ptargrep (1): Apply pattern matching to the contents of files in a t...
pthread_attr_getinheritsched (3): set/get inherit-scheduler attribute in thr...
pthread_attr_getschedparam (3): set/get scheduling parameter attributes in t...
pthread_attr_getschedpolicy (3): set/get scheduling policy attribute in thre...
pthread_attr_getscope (3): set/get contention scope attribute in thread attr...
pthread_attr_getstack (3): set/get stack attributes in thread attributes object
pthread_attr_getstackaddr (3): set/get stack address attribute in thread att...
pthread_attr_getstacksize (3): set/get stack size attribute in thread attrib...
pthread_attr_setinheritsched (3): set/get inherit-scheduler attribute in thr...
pthread_attr_setschedparam (3): set/get scheduling parameter attributes in t...
pthread_attr_setschedpolicy (3): set/get scheduling policy attribute in thre...
pthread_attr_setscope (3): set/get contention scope attribute in thread attr...
pthread_attr_setstack (3): set/get stack attributes in thread attributes object
pthread_attr_setstackaddr (3): set/get stack address attribute in thread att...
pthread_attr_setstacksize (3): set/get stack size attribute in thread attrib...
pthread_getschedparam (3): set/get scheduling policy and parameters of a thread
pthread_setschedparam (3): set/get scheduling policy and parameters of a thread
pthread_setschedprio (3): set scheduling priority of a thread
pts (4): pseudoterminal master and slave
ptsname (3): get the name of the slave pseudoterminal
ptsname_r (3): get the name of the slave pseudoterminal
ptx (1): produce a permuted index of file contents
pure-ftpd-wrapper (8): configures and starts Pure-FTPd daemon
pure-pwconvert (8): Generate a virtual users file from system accounts
pure-statsdecode (8): Show human-readable dates from a "stats" logfile
puts (3): output of characters and strings
putspent (3): get shadow password file entry
putw (3): input and output of words (ints)
pvmove (8): Move extents from one physical volume to another
query_module (2): query the kernel for various bits pertaining to modules
queue (3): implementations of singly-linked lists, singly-linked ...
raw (7): Linux IPv4 raw sockets
readfile (3am): return the entire contents of a file as a string
repertoiremap (5): map symbolic character names to Unicode code points
rtstat (8): unified linux network statistics
run-parts (8): run scripts or programs in a directory
safe_finger (8): finger client wrapper that protects against nasty stuf...
sched_getscheduler (2): set and get scheduling policy/parameters
sched_setscheduler (2): set and get scheduling policy/parameters
screendump (1): dump the contents of a virtual console to stdout
scriptreplay (1): play back typescripts, using timing information
securetty (5): file which lists terminals from which root can log in
set_mempolicy (2): set default NUMA memory policy for a thread and its ch...
setrlimit (2): get/set resource limits
setservent (3): get service entry
setsid (1): run a program in a new session
setsid (2): creates a session and sets the process group ID
setsockopt (2): get and set options on sockets
setspent (3): get shadow password file entry
setstate (3): random number generator
setstate_r (3): reentrant random number generator
setupcon (1): sets up the font and the keyboard on the console
sg_copy_results (8): send SCSI RECEIVE COPY RESULTS command (XCOPY related)
sg_inq (8): issue SCSI INQUIRY command and/or decode its response
sg_read_block_limits (8): send SCSI READ BLOCK LIMITS command
sg_requests (8): send one or more SCSI REQUEST SENSE commands
sg_vpd (8): fetch SCSI VPD page and/or decode its response
sgetspent (3): get shadow password file entry
sgetspent_r (3): get shadow password file entry
shm_open (3): create/open or unlink POSIX shared memory objects
shm_unlink (3): create/open or unlink POSIX shared memory objects
shred (1): overwrite a file to hide its contents, and optionally ...
sigaltstack (2): set and/or get signal stack context
SLIST_EMPTY (3): implementations of singly-linked lists, singly-linked ...
SLIST_ENTRY (3): implementations of singly-linked lists, singly-linked ...
SLIST_FIRST (3): implementations of singly-linked lists, singly-linked ...
SLIST_FOREACH (3): implementations of singly-linked lists, singly-linked ...
SLIST_HEAD (3): implementations of singly-linked lists, singly-linked ...
SLIST_HEAD_INITIALIZER (3): implementations of singly-linked lists, singly-l...
SLIST_INIT (3): implementations of singly-linked lists, singly-linked ...
SLIST_INSERT_AFTER (3): implementations of singly-linked lists, singly-linke...
SLIST_INSERT_HEAD (3): implementations of singly-linked lists, singly-linked...
SLIST_NEXT (3): implementations of singly-linked lists, singly-linked ...
SLIST_REMOVE (3): implementations of singly-linked lists, singly-linked ...
SLIST_REMOVE_HEAD (3): implementations of singly-linked lists, singly-linked...
sock_diag (7): obtaining information about sockets
socketpair (2): create a pair of connected sockets
soelim (1): interpret .so requests in groff input
split-logfile (8): Split combined virtual hosts access log into one file ...
ss (8): another utility to investigate sockets
STAILQ_CONCAT (3): implementations of singly-linked lists, singly-linked ...
STAILQ_EMPTY (3): implementations of singly-linked lists, singly-linked ...
STAILQ_ENTRY (3): implementations of singly-linked lists, singly-linked ...
STAILQ_FIRST (3): implementations of singly-linked lists, singly-linked ...
STAILQ_FOREACH (3): implementations of singly-linked lists, singly-linked ...
STAILQ_HEAD (3): implementations of singly-linked lists, singly-linked ...
STAILQ_HEAD_INITIALIZER (3): implementations of singly-linked lists, singly-...
STAILQ_INIT (3): implementations of singly-linked lists, singly-linked ...
STAILQ_INSERT_AFTER (3): implementations of singly-linked lists, singly-link...
STAILQ_INSERT_HEAD (3): implementations of singly-linked lists, singly-linke...
STAILQ_INSERT_TAIL (3): implementations of singly-linked lists, singly-linke...
STAILQ_NEXT (3): implementations of singly-linked lists, singly-linked ...
STAILQ_REMOVE (3): implementations of singly-linked lists, singly-linked ...
STAILQ_REMOVE_HEAD (3): implementations of singly-linked lists, singly-linke...
stdarg (3): variable argument lists
stpcpy (3): copy a string returning a pointer to its end
stpncpy (3): copy a fixed-size string, returning a pointer to its end
sysfs (5): a filesystem for exporting kernel objects
systemd-binfmt (8): Configure additional binary formats for executables at...
systemd-binfmt.service (8): Configure additional binary formats for executab...
systemd-cgls (1): Recursively show control group contents
systemd-cryptsetup (8): Full disk decryption logic
systemd-cryptsetup-generator (8): Unit generator for /etc/crypttab
systemd-cryptsetup@.service (8): Full disk decryption logic
systemd-pstore (8): A service to archive contents of pstore
systemd-pstore.service (8): A service to archive contents of pstore
systemd-run (1): Run programs in transient scope units, service units, ...
systemd-socket-proxyd (8): Bidirectionally proxy local sockets to another (p...
systemd-sysv-generator (8): Unit generator for SysV init scripts
systemd-udev-settle.service (8): Wait for all pending udev events to be handled
systemd.preset (5): Service enablement presets
systemd.special (7): Special systemd units
TAILQ_CONCAT (3): implementations of singly-linked lists, singly-linked ...
TAILQ_EMPTY (3): implementations of singly-linked lists, singly-linked ...
TAILQ_ENTRY (3): implementations of singly-linked lists, singly-linked ...
TAILQ_FIRST (3): implementations of singly-linked lists, singly-linked ...
TAILQ_FOREACH (3): implementations of singly-linked lists, singly-linked ...
TAILQ_FOREACH_REVERSE (3): implementations of singly-linked lists, singly-li...
TAILQ_HEAD (3): implementations of singly-linked lists, singly-linked ...
TAILQ_HEAD_INITIALIZER (3): implementations of singly-linked lists, singly-l...
TAILQ_INIT (3): implementations of singly-linked lists, singly-linked ...
TAILQ_INSERT_AFTER (3): implementations of singly-linked lists, singly-linke...
TAILQ_INSERT_BEFORE (3): implementations of singly-linked lists, singly-link...
TAILQ_INSERT_HEAD (3): implementations of singly-linked lists, singly-linked...
TAILQ_INSERT_TAIL (3): implementations of singly-linked lists, singly-linked...
TAILQ_LAST (3): implementations of singly-linked lists, singly-linked ...
TAILQ_NEXT (3): implementations of singly-linked lists, singly-linked ...
TAILQ_PREV (3): implementations of singly-linked lists, singly-linked ...
TAILQ_REMOVE (3): implementations of singly-linked lists, singly-linked ...
TAILQ_SWAP (3): implementations of singly-linked lists, singly-linked ...
tcgetsid (3): get session ID
thin_trim (8): Issue discard requests for free pool space (offline to...
trace (8postfix): Postfix delivery status reports
trial3 (1): run unit tests
ts (1ssl): Time Stamping Authority tool (client/server)
tsearch (3): manage a binary search tree
tset (1): terminal initialization
tsget (1ssl): Time Stamping HTTP/HTTPS client
tsig-keygen (8): ddns key generation tool
tsort (1): perform topological sort
Types::Serialiser (3pm): simple data types for common serialisation formats
ugetrlimit (2): get/set resource limits
ulimit (3): get and set user limits
units (7): decimal and binary prefixes
unix (7): sockets for local interprocess communication
unshare (2): disassociate parts of the process execution context
update-ca-certificates (8): update /etc/ssl/certs and ca-certificates.crt
user-dirs.defaults (5): default settings for XDG user dirs
user-runtime-dir@.service (5): System units to manage user processes
user@.service (5): System units to manage user processes
userfaultfd (2): create a file descriptor for handling page faults in u...
uts_namespaces (7): overview of Linux UTS namespaces
va_arg (3): variable argument lists
va_copy (3): variable argument lists
va_end (3): variable argument lists
va_start (3): variable argument lists
vdir (1): list directory contents
wc (1): print newline, word, and byte counts for each file
whiptail (1): display dialog boxes from shell scripts
WWW::RobotRules (3pm): database of robots.txt-derived permissions
xfs_copy (8): copy the contents of an XFS filesystem
xfs_scrub (8): check and repair the contents of a mounted XFS filesystem
xtables-legacy (8): iptables using old getsockopt/setsockopt-based kernel api
xtables-legacy-multi (8): iptables using old getsockopt/setsockopt-based ker...
xtables-monitor (8): show changes to rule set and trace-events
zshcompwid (1): zsh completion widgets
zsoelim (1): satisfy .so requests in roff input