Solaris™ 7 Reference

Table of contents

1. Copyright
2. Preface
3. Acknowledgments
4. Introduction
5. A
   1. acctcom — Search and Print Process Accounting Files
   2. adb — General-Purpose Debugger
   3. addbib — Create or Extend a Bibliographic Database
   4. admin, sccs-admin — Create and Administer SCCS History Files
   5. aedplot — Graphics Filters for Various Plotters
   6. alias, unalias — Create or Remove a Pseudonym
   7. answerbook2 — Online Documentation System
   8. appletviewer — View Java Applets
   9. apropos — Locate Commands by Keyword Lookup
   10. ar — Maintain Portable Archive or Library
   11. arch — Display the Architecture of the Current Host
   12. as — Assembler
   13. asa — Convert FORTRAN Carriage-control Output to Printable Form
   14. at, batch — Execute Commands at a Later Time
   15. atoplot — Graphics Filters for Various Plotters
   16. atq — Display the Jobs Queued to Run at Specified Times
   17. See Also
   18. atrm — Remove Jobs Spooled by at or batch
   19. audioconvert — Convert Audio File Formats
   20. audioplay — Play Audio Files
   21. audiorecord — Record an Audio File
   22. awk — Pattern Scanning and Processing Language
6. B
   1. banner — Make Posters
   2. basename, dirname — Deliver Portions of Path Names
   3. batch — Execute Commands at a Later Time
   4. bc — Binary Calculator
   5. bdiff — Big diff
   6. bfs — Big File Scanner
   7. bg — Control Process Execution
   8. bgplot — Graphics Filters for Various Plotters
   9. biff — Give Notice of Incoming Mail Messages
   10. break, continue — Shell Built-in Functions to Break Out of Loops
7. C
   1. cal — Display a Calendar
   2. calendar — Reminder Service
   3. cancel — Cancel Print Request
   4. case, switch, select — Shell Built-in Functions to Choose from a List of Actions
   5. cat — Concatenate and Display Files
   6. cc — C Compiler
   7. cd, chdir, pushd, popd, dirs — Change Working Directory
   8. cdc, sccs-cdc — Change the Delta Commentary of an SCCS Delta
   9. chdir — Change Working Directory
   10. checkeq — Typeset Mathematics Test
   11. checknr — Check nroff and troff Input Files for Errors
   12. chgrp — Change File Group Ownership
   13. chkey — Change User’s Secure RPC Key Pair
   14. chmod — Change the Permissions Mode of a File
   15. chown — Change File Ownership
   16. cksum — Write File Checksums and Sizes
   17. clear — Clear the Terminal Screen
   18. cmp — Compare Two Files
   19. col — Reverse Linefeeds Filter
   20. comb, sccs-comb — Combine SCCS Deltas
   21. comm — Select or Reject Lines Common to Two Files
   22. command — Execute a Simple Command
   23. compress, uncompress, zcat — Compress, Uncompress Files or Display Expanded Files
   24. continue, break — Shell Built-in Functions
   25. cp — Copy Files
   26. cpio — Copy File Archives In and Out
   27. cpp — C Language Preprocessor
   28. crontab — User Chronological Table File
   29. crtplot — Graphics Filters for Various Plotters
   30. crypt — Encode or Decode a File
   31. csh — Shell Command Interpreter with a C-like Syntax
   32. csplit — Split Files, Based on Context
   33. ct — Spawn Login to a Remote Terminal
   34. ctags — Create a Tags File for Use with ex and vi
   35. cu — Call Another UNIX System
   36. cut — Cut Out Selected Fields of Each Line of a File
8. D
   1. date — Write the Date and Time
   2. dc — Desk Calculator
   3. delta, sccs-delta — Make a Delta to an SCCS File
   4. deroff — Remove nroff/troff, tbl, and eqn Constructs
   5. df — Report Number of Free Disk Blocks and Files
   6. dhcpinfo — Display Value of Parameters Received Through DHCP
   7. diff — Display Line-by-Line Differences Between Pairs of Text Files
   8. diff3 — Three-Way Differential File Comparison
   9. diffmk — Mark Differences Between Versions of a troff Input File
   10. dircmp — Directory Comparison
   11. dirname — Deliver Portions of Path Names
   12. dirs — Change Working Directory
   13. dis — Object Code Disassembler
   14. disable — Disable LP Printers
   15. dispgid — Display a List of All Valid Group Names
   16. dispuid — Display a List of All Valid User Names
   17. dos2unix — Convert Text File from DOS Format to ISO Format
   18. download — Download Host-Resident PostScript Font
   19. dpost — troff Postprocessor for PostScript Printers
   20. du — Summarize Disk Usage
   21. dumbplot — Graphics Filters for Various Plotters
   22. dump — Dump Selected Parts of an Object File for Shell Scripts
   23. dumpcs — Show Codeset Table for the Current Locale
   24. dumpkeys — Dump Keyboard Translation Tables
9. E
   1. echo — Write Arguments to Standard Output
   2. ed, red — Text Editor
   3. edit — Text Editor (Variant of ex for Casual Users)
   4. egrep — Search a File for a Pattern, Using Full Regular Expressions
   5. eject — Eject Media such as CD-ROM and Diskette from Drive
   6. elfdump — Dump Selected Parts of an Object File
   7. enable, disable — Enable/Disable LP Printers
   8. env — Set Environment for Command Invocation
   9. eqn, neqn, checkeq — Typeset Mathematics Test
   10. eval — Shell Built-in Functions to Execute Other Commands
   11. ex — Display-Based Text Editor
   12. exec, eval, source — Shell Built-in Functions to Execute Other Commands
   13. exit, return, goto — Shell Built-in Functions to Enable the Shell to Advance Beyond Its Sequence of Steps
   14. expand, unexpand — Expand Tab Characters to Space Characters, and Vice Versa
   15. Operands.
   16. export — Shell Built-in Environment Variable Function
   17. exportfs — Translate exportfs Options to share/unshare Commands
   18. expr — Evaluate Arguments as an Expression
   19. exstr — Extract Strings from Source Files
10. F
    1. factor — Obtain the Prime Factors of a Number
    2. false — Provide Truth Values
    3. fastboot, fasthalt — Reboot/Halt the System Without Checking the Disks
    4. fc — Process Command History List
    5. fdformat — Format Diskette or PCMCIA Memory Card
    6. fg — Control Process Execution
    7. fgrep — Search a File for a Fixed-Character String
    8. file — Determine File Type
    9. filesync — Synchronize Ordinary, Directory, or Special Files
    10. find — Find Files
    11. finger — Display Information About Local and Remote Users
    12. fmt — Simple Text Formatter
    13. fmtmsg — Display a Message on Standard Error or System Console
    14. fnattr — Update and Examine Attributes Associated with an FNS Named Object
    15. fnbind — Bind a Reference to an FNS Name
    16. fnlist — Display the Names and References Bound in an FNS Context
    17. fnlookup — DIsplay the Reference Bound to an FNS Name
    18. fnrename — Rename the Binding of an FNS Name
    19. fnsearch — Search for FNS Objects with Specified Attributes
    20. fnunbind — Unbind the Reference from an FNS Name
    21. fold — Filter for Folding Lines
    22. for, foreach, repeat — Shell Built-in Repeat Functions
    23. from — Display the Sender and Date of Newly Arrived Mail Messages
    24. ftp — File Transfer Program
    25. function — Shell Built-in Command to Define a Shell Function
11. G
    1. gcore — Get Core Images of Running Processes
    2. gencat — Generate a Formatted Message Catalog
    3. genmsg — Generate a Message Source File by Extracting Messages from Source Files
    4. get, sccs-get — Retrieve a Version of an SCCS File
    5. getconf — Get Configuration Values
    6. getfacl — Display Discretionary File Information
    7. getopt — Parse Command Options
    8. getoptcvt — Convert to getopts to Parse Command Options
    9. getopts — Parse Utility Options
    10. gettext — Retrieve Text String from Message Database
    11. gigiplot — Graphics Filters for Various Plotters
    12. glob — Shell Built-in Function to Expand a Word List
    13. goto — Shell Built-in Functions
    14. gprof — Display Call-graph Profile Data
    15. graph — Draw a Graph
    16. grep — Search a File for a Pattern
    17. groups — Print Group Membership of User
    18. grpck — Password/Group File Checkers
12. H
    1. hash, rehash, unhash, hashstat — Evaluate the Internal Hash Table of the Contents of Directories
    2. hashcheck, hashmake — Report Spelling Errors
    3. hashstat — Evaluate the Internal Hash Table of the Contents of Directories
    4. head — Display First Few Lines of Files
    5. help, sccs-help — Ask for Help Regarding SCCS Error or Warning Messages
    6. history, fc — Process Command History List
    7. hostid — Print the Numeric Identifier of the Current Host
    8. hostname — Set or Print Name of Current Host System
    9. hp7221plot, hpplot — Graphics Filters for Various Plotters
13. I
    1. iAPX286, i286, i386, i486, i860 — Get Processor Type Truth Value
    2. iconv — Code Set Conversion Utility
    3. if, test — Evaluate Conditions
    4. implot — Graphics Filters for Various Plotters
    5. indxbib — Create an Inverted Index to a Bibliographic Database
    6. install — Install Commands
    7. Intro, intro — Introduction to Commands and Application Programs
    8. ipcrm — Remove a Message Queue, Semaphor Set, or Shared Memory ID
    9. ipcs — Report Interprocess Communication Facilities Status
    10. isainfo — Describe Instruction Set Architectures
    11. isalist — Display the Native Instruction Sets for This Platform
14. J
    1. jar — Java Archive Tool
    2. javac — Java Compiler
    3. javadoc — Java API Documentation Generator
    4. javah — C Header and Stub File Generator
    5. javald — Create Java Application Wrappers
    6. javap — Java Class File Disassembler
    7. jdb — Java Debugger
    8. jobs, fg, bg, stop, notify — Control Process Execution
    9. join — Relational Database Operator
    10. jre — Java Runtime Interpreter
    11. jsh — Standard and Job Control Shell and Command Interpreter
15. K
    1. kbd — Keyboard Command
    2. kdestroy — Destroy Kerberos Tickets
    3. kerberos — Introduction to the Kerberos Security System
    4. keylogin — Decrypt and Store Secret Key with keyserv
    5. keylogout — Delete Stored Secret Key with keyserv
    6. kill — Terminate or Signal Processes
    7. kinit — Kerberos Login Command
    8. klist — List Currently Held Kerberos Tickets
    9. ksh, rksh — Korn Shell, a Standard/Restricted Command and Programming Language
    10. ksrvtgt — Fetch and Store Kerberos Ticket-Granting Ticket, Using a Service Key
16. L
    1. last — Display Login and Logout Information
    2. lastcomm — Display the Last Commands Executed, in Reverse Order
    3. ld — Link Editor for Object Files
    4. ldapadd — ldap Entry Addition and Modification Tools
    5. ldapdelete — ldap Delete Entry Tool
    6. ldapmodify, ldapadd — ldap Entry Addition and Modification Tools
    7. ldapmodrdn — ldap Modify Entry RDN Tool
    8. ldapsearch — ldap Search Tool
    9. ldd — List Dynamic Dependencies of Executable Files or Shared Objects
    10. ld.so.1 — Runtime Linker for Dynamic Objects
    11. let — Shell Built-in Function to Evaluate One or More Arithmetic Expressions
    12. lex — Generate Programs for Lexical Tasks
    13. limit, ulimit, unlimit — Set or Get Limitations on Available System Resources
    14. line — Read One Line
    15. lint — C Program Verifier
    16. listusers — List User Login Information
    17. ln — Make Hard or Symbolic Links to Files
    18. loadfont — Display or Change X86 Video Card Font Information
    19. loadkeys, dumpkeys — Load and Dump Keyboard Translation Tables
    20. locale — Get Locale-Specific Information
    21. localedef — Define Locale Environment
    22. logger — Add Entries to the System Log
    23. login — Sign On to the System
    24. logname — Return User’s Login Name
    25. logout — Shell Built-in Function to Exit from a Login Session
    26. look — Find Words in the System Dictionary or Lines in Sorted List
    27. lookbib — Find References in a Bibliographic Database
    28. lorder — Find Ordering Relation for an Object or Library Archive
    29. lp — Submit Print Request
    30. lpc — Line Printer Control Program
    31. lpq — Display the Contents of a Print Queue
    32. lpr — Submit BSD Print Requests
    33. lprm — Remove Print Requests from the Print Queue
    34. lpstat — Display Information About the Status of the Print Service
    35. lptest — Generate Line Printer Ripple Pattern
    36. ls — List Contents of Directory
17. M
    1. m4 — Macro Processor
    2. mach — Display the Processor Type of the Current Host
    3. machid — Get Processor Type Truth Value
    4. mail, rmail — Read Mail or Send Mail to Users
    5. mailcompat — Provide Compatibility for Solaris Mailbox
    6. mailq — Print the Mail Queue
    7. mailstats — Print Statistics Collected by sendmail
    8. mailx, mail, Mail — Interactive Message Processing System
    9. make — Maintain, Update, and Regenerate Related Programs and Files
    10. makekey — Generate Encryption Key
    11. man — Find and Display Reference Manual Pages
    12. mconnect — Connect to SMTP Mail Server Socket
    13. mcs — Manipulate the Comment Section of an Object File
    14. mesg — Permit or Deny Messages
    15. mkdir — Make Directories
    16. mkmsgs — Create Message Files for Use by gettxt
    17. mkstr — Create an Error Message File by Massaging C Source Files
    18. more, page — Browse or Page Through a Text File
    19. msgfmt — Create a Message Object from a Message File
    20. mt — Magnetic Tape Control
    21. mv — Move Files
18. N
    1. native2ascii — Native-to-ASCII Converter
    2. nawk — New Pattern Scanning and Processing Language
    3. neqn — Typeset Mathematics Test
    4. newaliases — Rebuild the Database for the Mail Aliases File
    5. newform — Change the Format of a Text File
    6. newgrp — Log In to a New Group
    7. news — Print News Items
    8. nice — Invoke a Command with an Altered Scheduling Priority
    9. nis+, NIS+, nis — New Version of the Network Information Name Service
    10. niscat — Display NIS+ Tables and Objects
    11. nischgrp — Change the Group Owner of an NIS+ Object
    12. nischmod — Change Access Rights on an NIS+ Object
    13. nischown — Change the Owner of an NIS+ Object
    14. nischttl — Change the Time-to-Live Value of an NIS+ Object
    15. nisdefaults — Display NIS+ Default Values
    16. niserror — Display NIS+ Error Messages
    17. nisgrep — Search NIS+ Tables
    18. nisgrpadm — NIS+ Group Administration Command
    19. nisln — Symbolically Link NIS+ Objects
    20. nisls — List the Contents of an NIS+ Directory
    21. nismatch, nisgrep — Search NIS+ Tables
    22. nismkdir — Create NIS+ Directories
    23. nispasswd — Change NIS+ Password Information
    24. nisrm — Remove NIS+ Objects from the Namespace
    25. nisrmdir — Remove NIS+ Directories
    26. nistbladm — Administer NIS+ Tables
    27. nistest — Return the State of the NIS+ Namespace, Using Conditional Expression
    28. nl — Line Numbering Filter
    29. nm — Print Name List of an Object File
    30. nohup — Run a Command Immune to Hangups
    31. notify — Control Process Execution
    32. nroff — Format Documents for Display or Line Printer
19. O
    1. od — Octal Dump
    2. on — Execute a Command on a Remote System, Using the Local Environment
    3. onintr — Shell Built-in Functions to Respond to (Hardware) Signals
    4. optisa — Determine Which Variant Instruction Set Is Optimal
20. P
    1. pack, pcat, unpack — Compress and Expand Files
    2. page — Browse or Page through a Text File
    3. pagesize — Display the Size of a Page of Memory
    4. passwd — Change Login Password and Password Attributes
    5. paste — Merge Corresponding or Subsequent Lines of Files
    6. patch — Apply Changes to Files
    7. pathchk — Check Path Names
    8. pax — Portable Archive Interchange
    9. pcat — Compress and Expand Files
    10. pcmapkeys — Set Keyboard Extended Map and Scan Code Translation for the PC Console in Text Mode
    11. pcred — Proc Tools
    12. pdp11 — Get Processor Type Truth Value
    13. pfiles, pflags — Proc Tools
    14. pg — Files Perusal Filter
    15. pgrep, pkill — Find or Signal Processes
    16. pkginfo — Display Software Package Information
    17. pkgmk — Produce an Installable Package
    18. pkgparam — Display Package Parameter Values
    19. pkgproto — Generate Prototype File Entries for Input to pkgmk Command
    20. pkgtrans — Translate Package Format
    21. pkill — Find or Signal Processes
    22. pldd — Proc Tools
    23. plimit — Get or Set the Resource Limits of Running Processes
    24. plot, aedplot, atoplot, bgplot, crtplot, dumbplot, gigiplot — Graphics Filters for Various Plotters
    25. pmap — Proc Tools
    26. popd — Change Working Directory
    27. postdaisy — PostScript Translator for Diablo 630 Daisy-Wheel Files
    28. postdmd — PostScript Translator for DMD Bitmap Files
    29. postio — Serial Interface for PostScript Printers
    30. postmd — Matrix Display Program for PostScript Printers
    31. postplot — PostScript Translator for plot(4) Graphics Files
    32. postprint — PostScript Translator for Text Files
    33. postreverse — Reverse the Page Order in a PostScript File
    34. posttek — PostScript Translator for Tektronix 4014 Files
    35. pr — Print Files
    36. prex — Control Tracing in a Process or the Kernel
    37. print — Shell Built-in Function to Output Characters to the Screen or Window
    38. printenv — Display Current Environment Variable
    39. printf — Write Formatted Output
    40. priocntl — Display or Set Scheduling Parameters of Specified Process(es)
    41. proc, pflags, pcred, pmap, pldd, psig, pstack, pfiles, pwdx, pstop, prun, pwait, ptree, ptime — Proc Tools
    42. prof — Display Profile Data
    43. prs, sccs-prs — Display Selected Portions of an SSCS History
    44. prt, sccs-prt — Display Delta Table Information from an SCCS File
    45. prun — Proc Tools
    46. ps — Report Process Status
    47. psig, pstack, pstop, ptime, ptree — Proc Tools
    48. pushd — Change Working Directory
    49. pvs — Display the Internal Information of Dynamic Objects
    50. pwait — Proc Tools
    51. pwd — Return Working Directory Name
    52. pwxd — Proc Tools
21. R
    1. ranlib — Convert Archives to Random Libraries
    2. rcp — Remote File Copy
    3. rdist — Remote File Distribution Program
    4. Bugs
    5. read — Read a Line from Standard Input
    6. readonly — Shell Built-in Function to Protect the Value of the Given Variable from Reassignment
    7. red — Text Editor
    8. refer — Expand and Insert References from a Bibliographic Database
    9. regcmp — Compile Regular Expressions
    10. rehash — Evaluate the Internal Hash Table of the Contents of Directories
    11. remote_shell, remsh — Remote Shell
    12. renice — Alter Priority of Running Processes
    13. repeat — Shell Built-in Function to Repeat Actions
    14. reset — Establish or Restore Terminal Characteristics
    15. return — Shell Built-in Function to Advance Beyond a Sequence of Steps
    16. rksh — Korn Shell, a Standard/Restricted Command and Programming Language
    17. rlogin — Remote Login
    18. rm, rmdir — Remove Directory Entries
    19. rmail — Read Mail or Send Mail to Users
    20. rmdel — Remove a Delta from an SCCS File
    21. rmdir — Remove Directory Entries
    22. rmic — Java RMI Stub Compiler
    23. rmiregistry — Register Remote Java Objects
    24. roffbib — Format and Print a Bibliographic Database
    25. rpcgen — RPC Protocol Compiler
    26. rsh, remsh, remote_shell — Remote Shell
    27. rup — Show Host Status of Remote Systems (RPC Version)
    28. ruptime — Show Host Status of Local Systems
    29. rusage — Print Resource Usage for a Command
    30. rusers — Display Who Is Logged In on Remote Systems
    31. rwho — Display Who Is Logged In on Local Systems
22. S
    1. sact — Show Editing Activity Status of an SCCS File
    2. sag — System Activity Graph
    3. sar — System Activity Reporter
    4. sccs — Front End for the Source Code Control System (SCCS)
    5. sccs-admin, admin — Create and Administer SCCS History Files
    6. sccs-cdc, cdc — Change the Commentary of an SCCS Delta
    7. sccs-comb, comb — Combine SCCS Deltas
    8. sccs-delta, delta — Make a Delta to an SCCS File
    9. sccsdiff — Compare Two Versions of an SCCS File
    10. sccs-get, get — Retrieve a Version of an SCCS File
    11. sccs-help, help — Ask for Help Regarding SCCS Error or Warning Messages
    12. sccs-prs, prs — Display Selected Portions of an SCCS History
    13. sccs-prt, prt — Display Delta Table Information from an SCCS File
    14. sccs-rmdel, rmdel — Remove a Delta from an SCCS File
    15. sccs-sact, sact — Show Editing Activity Status of an SCCS File
    16. sccs-sccsdiff, sccsdiff — Compare Two Versions of an SCCS File
    17. sccs-unget, unget — Undo a Previous Get of an SCCS File
    18. sccs-val, val — Validate an SCCS File
    19. script — Make Record of a Terminal Session
    20. sdiff — Print, Side-by-Side, Differences Between Two Files
    21. sed — Stream Editor
    22. select — Shell Built-in Functions to Choose from a List of Actions
    23. serialver — Show Serial Version
    24. set, unset, setenv, unsetenv, export — Shell Environment Variable Built-in Functions
    25. setfacl — Modify the Access Control List (ACL) for a File or Files
    26. settime — Change File Access and Modification Times
    27. sh, jsh — Standard and Job Control Shell and Command Interpreter
    28. shell_builtins — Shell Command Interpreter Built-in Functions
    29. shift — Shell Built-in Function to Traverse Either a Shell’s Argument List or a List of Field-Separated Words
    30. shutdown — Close Down the System at a Given Time
    31. size — Print Section Sizes of Object Files in Bytes
    32. sleep — Suspend Execution for an Interval
    33. smart2cfg — Compaq Smart-2 EISA/PCI and Smart-2SL PCI Array Controller ioctl Command
    34. soelim — Resolve and Eliminate .so Requests from nroff or troff Input
    35. solregis — Solaris User Registration
    36. sort — Sort, Merge, or Sequence Check Text Files
    37. sortbib — Sort a Bibliographic Database
    38. sotruss — Trace Shared Library Procedure Calls
    39. source — Shell Built-in Function to Execute Other Commands
    40. sparc — Get Processor Type Truth Value
    41. spell, hashmake, spellin, hashcheck — Report Spelling Errors
    42. spline — Interpolate Smooth Curve
    43. split — Split a File into Pieces
    44. srchtxt — Display Contents of, or Search for, a Text String in Message Databases
    45. stop — Control Process Execution
    46. strchg, strconf — Change or Query Stream Configuration
    47. strings — Find Printable Strings in an Object or Binary File
    48. strip — Strip Symbol Table, Debugging, and Line Number Information from an Object File
    49. stty — Set the Options for a Terminal
    50. sum — Print Checksum and Block Count for a File
    51. sun — Get Processor Type Truth Value
    52. suspend — Shell Built-in Function to Halt the Current Shell
    53. switch — Shell Built-in Function to Choose from a List of Actions
    54. symorder — Rearrange a List of Symbols
    55. sysV-make — Maintain, Update, and Regenerate Groups of Programs
23. T
    1. t300, t300s, t4014, t450 — Graphics Filters for Various Plotters
    2. tabs — Set Tabs on a Terminal
    3. tail — Look at the Last Part of a File
    4. talk — Talk to Another User
    5. tar — Create Tape Archives and Add or Extract Files
    6. tbl — Format Tables for nroff or troff
    7. tcopy — Copy a Magnetic Tape
    8. tee — Replicate the Standard Output
    9. tek — Graphics Filters for Various Plotters
    10. telnet — User Interface to a Remote System, Using the TELNET Protocol
    11. test — Evaluate Conditions
    12. tftp — Trivial File Transfer Program
    13. time — Time a Simple Command
    14. times — Shell Built-in Function to Report Time Use of the Current Shell
    15. timex — Time a Command; Report Process Data and System Activity
    16. tip — Connect to Remote System
    17. tnfdump — Convert Binary Trace Normal Form (TNF) File to ASCII
    18. tnfxtract — Extract Kernel Probes Output into a Trace File
    19. touch — Change File Access and Modification Times
    20. tplot, t300, t300s, t4014, t450, tek, ver — Graphics Filters for Terminal Output of Various Plotters
    21. tput — Initialize a Terminal or Query terminfo Database
    22. tr — Translate Characters
    23. trap, onintr — Shell Built-in Functions to Respond to Hardware Signals
    24. troff — Typeset or Format Documents
    25. true, false — Provide Truth Values
    26. truss — Trace System Calls and Signals
    27. tset, reset — Establish or Restore Terminal Characteristics
    28. tsort — Topological Sort
    29. tty — Return User’s Terminal Name
    30. type — Write a Description of Command Type
    31. typeset, whence — Shell Built-in Command to Get/Set Attributes and Values for Shell Variables and Functions
24. U
    1. u3b, u3b2, u3b5, u3b15, u370 — Get Processor Type Truth Value
    2. ucblinks — Add /dev Entries for SunOS 4.x Compatibility
    3. ul — Underline Text on Terminal Display
    4. ulimit, unlimit — Set or Get Shell Limitations on System Resources
    5. umask — Get or Set the File Mode Creation Mask
    6. unalias — Remove Command Pseudonyms
    7. uname — Print Name of Current System
    8. uncompress — Uncompress or Display Expanded Files
    9. unexpand — Convert Space Characters to Tabs
    10. unget — Undo a Previous Get of an SCCS File
    11. unhash — Evaluate the Internal Hash Table of the Contents of Directories
    12. unifdef — Resolve and Remove ifdef’d Lines from C Program Source
    13. uniq — Report or Filter Out Repeated Lines in a File
    14. units — Convert Quantities Expressed in Standard Scales to Other Units
    15. unix2dos — Convert Text File from ISO Format to DOS Format
    16. unlimit — Set or Get Shell System Resource Limitations
    17. unpack — Compress and Expand Files
    18. unset, unsetenv — Shell Built-in Functions to Determine Environment Variable Characteristics
    19. until — Shell Built-in Functions to Execute Actions Until Conditions Are Evaluated True
    20. unzip — List, Test, and Extract Compressed Files from a Zip Archive
    21. uptime — Show How Long a System Has Been Up
    22. users — Display a Compact List of Logged-In Users
    23. uucp, uulog, uuname — UNIX-to-UNIX System Copy
    24. uuencode, uudecode — Encode or Decode a Binary File
    25. uuglist — Print the List of Available Service Grades
    26. uulog, uuname — UNIX-to-UNIX System Copy
    27. uupick — Public UNIX-to-UNIX System File Copy
    28. uustat — uucp Status Inquiry and Job Control
    29. uuto, uupick — Public UNIX-to-UNIX System File Copy
    30. uux — UNIX-to-UNIX System Command Execution
25. V
    1. vacation — Reply to Mail Automatically
    2. val — Validate an SCCS File
    3. vax — Get Processor Type Truth Value
    4. vc — Version Control
    5. vedit — Screen-Oriented Visual Display Editor Based on ex
    6. ver — Graphics Filters for Various Plotters
    7. vgrind — Format Program Listings
    8. vi, view, vedit — Screen-Oriented Visual Display Editor Based on ex
    9. view — Screen-Oriented Visual Display Editor Based on ex
    10. vipw — Edit the Password File
    11. volcancel — Cancel Request for Removable Media Not Currently in Drive
    12. volcheck — Check for Media in a Drive
    13. volmissing — Notify User That Volume Requested Is Not in the CD-ROM or Diskette Drive
    14. volrmmount — Call rmmount to Mount or Unmount Media
    15. vplot — Graphics Filters for Various Plotters
26. W
    1. w — Display Information About Currently Logged-in Users
    2. wait — Await Process Completion
    3. wc — Display a Count of Lines, Words, and Characters in a File
    4. what — Extract SCCS Version Information from a File
    5. whatis — Display a One-Line Summary About a Command
    6. whence — Shell Built-in Function to Get/Set Shell Variable and Function Attributes and Values
    7. whereis — Locate the Binary, Source, and Manual Page Files for a Command
    8. which — Locate a Command; Display Its Path Name or Alias
    9. while — Shell Built-in Function to Execute Conditional Actions
    10. who — Report Who Is on the System
    11. whoami — Display the Effective Current User Name
    12. whocalls — Report on the Calls to a Specific Procedure
    13. whois — Internet User Name Directory Service
    14. write — Write to Another User
27. X
    1. xargs — Construct Argument Lists and Invoke Command
    2. xgettext — Extract gettext Call Strings from C Programs
    3. xstr — Extract Strings from C Programs
28. Y
    1. yacc — Yet Another Compiler-Compiler
    2. ypcat — Print Values in an NIS Database
    3. ypmatch — Print the Value of Keys from an NIS Map
    4. yppasswd — Change Your Network Password in the NIS Database
    5. ypwhich — Return Name of NIS Server of Map Master
29. Z
    1. zcat — Compress, Uncompress Files or Display Expanded Files
    2. zipinfo — List Detailed Information About a Zip Archive