Solaris 7 Reference, 1/e

• Communication
• File Management
• System Status
• Archiving
• Printing
• Text Processing
• Shell Programming
• Searching

A.

Acctcom - Search and Print Process Accounting Files. Adb - General-Purpose Debugger. Addbib - Create or Extend a Bibliographic Database. admin, sccs-admin - Create and Administer SCCS History Files. Aedplot - Graphics Filters for Various Plotters. alias, unalias - Create or Remove a Pseudonym. answerbook2 - Online Documentation System. Appletviewer - View Java Applets. Apropos - Locate Commands by Keyword Lookup. Ar - Maintain Portable Archive or Library. Arch - Display the Architecture of the Current Host. As - Assembler. Asa - Convert FORTRAN Carriage-control Output to Printable Form. at, batch - Execute Commands at a Later Time. Atoplot - Graphics Filters for Various Plotters. Atq - Display the Jobs Queued to Run at Specified Times. Atrm - Remove Jobs Spooled by at or batch. Audioconvert - Convert Audio File Formats. Audioplay - Play Audio Files. Audiorecord - Record an Audio File. Awk - Pattern Scanning and Processing Language.

B.

Banner - Make Posters. basename, dirname - Deliver Portions of Path Names. Batch - Execute Commands at a Later Time. Bc - Binary Calculator. Bdiff - Big diff. Bfs - Big File Scanner. Bg - Control Process Execution. Bgplot - Graphics Filters for Various Plotters. Biff - Give Notice of Incoming Mail Messages. break, continue - Shell Built-in Functions to Break Out of Loops.

C.

Cal - Display a Calendar. Calendar - Reminder Service. Cancel - Cancel Print Request. case, switch, select - Shell Built-in Functions to Choose from a List of Actions. Cat - Concatenate and Display Files. Cc - C Compiler. cd, chdir, pushd, popd, dirs - Change Working Directory. cdc, sccs-cdc - Change the Delta Commentary of an SCCS Delta. Chdir - Change Working Directory. Checkeq - Typeset Mathematics Test. Checknr - Check nroff and troff Input Files for Errors. Chgrp - Change File Group Ownership. Chkey - Change User's Secure RPC Key Pair. Chmod - Change the Permissions Mode of a File. Chown - Change File Ownership. Cksum - Write File Checksums and Sizes. Clear - Clear the Terminal Screen. Cmp - Compare Two Files. Col - Reverse Linefeeds Filter. comb, sccs-comb - Combine SCCS Deltas. Comm - Select or Reject Lines Common to Two Files. Command - Execute a Simple Command. compress, uncompress, zcat - Compress, Uncompress Files or Display Expanded Files. continue, break - Shell Built-in Functions. Cp - Copy Files. Cpio - Copy File Archives In and Out. Cpp - C Language Preprocessor. Crontab - User Chronological Table File. Crtplot - Graphics Filters for Various Plotters. Crypt - Encode or Decode a File. Csh - Shell Command Interpreter with a C-like Syntax. Csplit - Split Files, Based on Context. Ct - Spawn Login to a Remote Terminal. Ctags - Create a Tags File for Use with ex and vi. Cu - Call Another UNIX System. Cut - Cut Out Selected Fields of Each Line of a File.

D.

date - Write the Date and Time. dc - Desk Calculator. delta, sccs-delta - Make a Delta to an SCCS File. deroff - Remove nroff/troff, tbl, and eqn Constructs. df - Report Number of Free Disk Blocks and Files. dhcpinfo - Display Value of Parameters Received Through DHCP. diff - Display Line-by-Line Differences Between Pairs of Text Files. diff3 - Three-Way Differential File Comparison. diffmk - Mark Differences Between Versions of a troff Input File. dircmp - Directory Comparison. dirname - Deliver Portions of Path Names. dirs - Change Working Directory. dis - Object Code Disassembler. disable - Disable LP Printers. dispgid - Display a List of All Valid Group Names. dispuid - dos2unix - Convert Text File from DOS Format to ISO Format. Download - Download Host-Resident PostScript Font. dpost - troff Postprocessor for PostScript Printers. du - Summarize Disk Usage. dumbplot - Graphics Filters for Various Plotters. dump - Dump Selected Parts of an Object File for Shell Scripts. dumpcs - Show Codeset Table for the Current Locale. dumpkeys - Dump Keyboard Translation Tables.

E.

echo - Write Arguments to Standard Output. ed, red - Text Editor. edit - Text Editor (Variant of ex for Casual Users). egrep - Search a File for a Pattern, Using Full Regular Expressions. eject - Eject Media such as CD-ROM and Diskette from Drive. elfdump - Dump Selected Parts of an Object File. enable, disable - Enable/Disable LP Printers. env - Set Environment for Command Invocation. eqn, neqn, checkeq - Typeset Mathematics Test. eval - Shell Built-in Functions to Execute Other Commands. ex - Display-Based Text Editor. exec, eval, source - Shell Built-in Functions to Execute Other Commands. exit, return, goto - Shell Built-in Functions to Enable the Shell to Advance Beyond Its Sequence of Steps. expand, unexpand - Expand Tab Characters to Space Characters, and Vice Versa. export - Shell Built-in Environment Variable Function. exportfs - Translate exportfs Options to share/unshare Commands. expr - Evaluate Arguments as an Expression. exstr - Extract Strings from Source Files.

F.

factor - Obtain the Prime Factors of a Number. false - Provide Truth Values. fastboot, fasthalt - Reboot/Halt the System Without Checking the Disks. fc - Process Command History List. fdformat - Format Diskette or PCMCIA Memory Card. fg - Control Process Execution. fgrep - Search a File for a Fixed-Character String. file - Determine File Type. filesync - Synchronize Ordinary, Directory, or Special Files. find - Find Files. finger - Display Information About Local and Remote Users. fmt - Simple Text Formatter. fmtmsg - Display a Message on Standard Error or System Console. fnattr - Update and Examine Attributes Associated with an FNS Named Object. fnbind - Bind a Reference to an FNS Name. fnlist - Display the Names and References Bound in an FNS Context. fnlookup - DIsplay the Reference Bound to an FNS Name. fnrename - Rename the Binding of an FNS Name. fnsearch - Search for FNS Objects with Specified Attributes. fnunbind - Unbind the Reference from an FNS Name. fold - Filter for Folding Lines. for, foreach, repeat - Shell Built-in Repeat Functions. from - Display the Sender and Date of Newly Arrived Mail Messages. ftp - File Transfer Program. function - Shell Built-in Command to Define a Shell Function.

G.

gcore - Get Core Images of Running Processes. gencat - Generate a Formatted Message Catalog. genmsg - Generate a Message Source File by Extracting Messages from Source Files. get, sccs-get - Retrieve a Version of an SCCS File. getconf - Get Configuration Values. getfacl - Display Discretionary File Information. getopt - Parse Command Options. getoptcvt - Convert to getopts to Parse Command Options. getopts - Parse Utility Options. gettext - Retrieve Text String from Message Database. gigiplot - Graphics Filters for Various Plotters. glob - Shell Built-in Function to Expand a Word List. goto - Shell Built-in Functions. gprof - Display Call-graph Profile Data. graph - Draw a Graph. grep - Search a File for a Pattern. groups - Print Group Membership of User. grpck - Password/Group File Checkers.

H.

hash, rehash, unhash, hashstat - Evaluate the Internal Hash Table of the Contents of Directories. hashcheck, hashmake - Report Spelling Errors. hashstat - Evaluate the Internal Hash Table of the Contents of Directories. head - Display First Few Lines of Files. help, sccs-help - Ask for Help Regarding SCCS Error or Warning Messages. history, fc - Process Command History List. hostid - Print the Numeric Identifier of the Current Host. hostname - Set or Print Name of Current Host System. hp7221plot, hpplot - Graphics Filters for Various Plotters.

gif/chapter.gif I.

iAPX286, i286, i386, i486, i860 - Get Processor Type Truth Value. iconv - Code Set Conversion Utility. if, test - Evaluate Conditions. implot - Graphics Filters for Various Plotters. indxbib - Create an Inverted Index to a Bibliographic Database. install - Install Commands. Intro, intro - Introduction to Commands and Application Programs. ipcrm - Remove a Message Queue, Semaphor Set, or Shared Memory ID. ipcs - Report Interprocess Communication Facilities Status. isainfo - Describe Instruction Set Architectures. isalist - Display the Native Instruction Sets for This Platform.

J.

jar - Java Archive Tool. javac - Java Compiler. javadoc - Java API Documentation Generator. javah - C Header and Stub File Generator. javald - Create Java Application Wrappers. javap - Java Class File Disassembler. jdb - Java Debugger. jobs, fg, bg, stop, notify - Control Process Execution. join - Relational Database Operator. jre - Java Runtime Interpreter. jsh - Standard and Job Control Shell and Command Interpreter.

K.

kbd - Keyboard Command. kdestroy - Destroy Kerberos Tickets. kerberos - Introduction to the Kerberos Security System. keylogin - Decrypt and Store Secret Key with keyserv. keylogout - Delete Stored Secret Key with keyserv. kill - Terminate or Signal Processes. kinit - Kerberos Login Command. klist - List Currently Held Kerberos Tickets. ksh, rksh - Korn Shell, a Standard/Restricted Command and Programming Language. ksrvtgt - Fetch and Store Kerberos Ticket-Granting Ticket, Using a Service Key.

L.

last - Display Login and Logout Information. lastcomm - Display the Last Commands Executed, in Reverse Order. ld - Link Editor for Object Files. ldapadd - ldap Entry Addition and Modification Tools. ldapdelete - ldap Delete Entry Tool. ldapmodify, ldapadd - ldap Entry Addition and Modification Tools. ldapmodrdn - ldap Modify Entry RDN Tool. ldapsearch - ldap Search Tool. ldd - List Dynamic Dependencies of Executable Files or Shared Objects. ld.so.1 - Runtime Linker for Dynamic Objects. let - Shell Built-in Function to Evaluate One or More Arithmetic Expressions. lex - Generate Programs for Lexical Tasks. limit, ulimit, unlimit - Set or Get Limitations on Available System Resources. line - Read One Line. lint - C Program Verifier. listusers - List User Login Information. ln - Make Hard or Symbolic Links to Files. loadfont - Display or Change X86 Video Card Font Information. loadkeys, dumpkeys - Load and Dump Keyboard Translation Tables. locale - Get Locale-Specific Information. localedef - Define Locale Environment. logger - Add Entries to the System Log. login - Sign On to the System. logname - Return User's Login Name. logout - Shell Built-in Function to Exit from a Login Session. look - Find Words in the System Dictionary or Lines in Sorted List. lookbib - Find References in a Bibliographic Database. lorder - Find Ordering Relation for an Object or Library Archive. lp - Submit Print Request. lpc - Line Printer Control Program. lpq - Display the Contents of a Print Queue. lpr - Submit BSD Print Requests. lprm - Remove Print Requests from the Print Queue. lpstat - Display Information About the Status of the Print Service. lptest - Generate Line Printer Ripple Pattern. ls - List Contents of Directory.

M.

m4 - Macro Processor. Display the Processor Type of the Current Host. machid - Get Processor Type Truth Value. mail, rmail - Read Mail or Send Mail to Users. mailcompat - Provide Compatibility for Solaris Mailbox. mailq - Print the Mail Queue. mailstats - Print Statistics Collected by sendmail. mailx, mail, Mail - Interactive Message Processing System. make - Maintain, Update, and Regenerate Related Programs and Files. makekey - Generate Encryption Key. man - Find and Display Reference Manual Pages. mconnect - Connect to SMTP Mail Server Socket. mcs - Manipulate the Comment Section of an Object File. mesg - Permit or Deny Messages. mkdir - Make Directories. mkmsgs - Create Message Files for Use by gettxt. mkstr - Create an Error Message File by Massaging C Source Files. more, page - Browse or Page Through a Text File. msgfmt - Create a Message Object from a Message File. mt - Magnetic Tape Control. mv - Move Files.

N.

native2ascii - Native-to-ASCII Converter. nawk - New Pattern Scanning and Processing Language. neqn - Typeset Mathematics Test. newaliases - Rebuild the Database for the Mail Aliases File. newform - Change the Format of a Text File. newgrp - Log In to a New Group. news - Print News Items. nice - Invoke a Command with an Altered Scheduling Priority. nis+, NIS+, nis - New Version of the Network Information Name Service. niscat - Display NIS+ Tables and Objects. nischgrp - Change the Group Owner of an NIS+ Object. nischmod - Change Access Rights on an NIS+ Object. nischown - Change the Owner of an NIS+ Object. nischttl - Change the Time-to-Live Value of an NIS+ Object. nisdefaults - Display NIS+ Default Values. niserror - Display NIS+ Error Messages. nisgrep - Search NIS+ Tables. nisgrpadm - NIS+ Group Administration Command. nisln - Symbolically Link NIS+ Objects. nisls - List the Contents of an NIS+ Directory. nismatch, nisgrep - Search NIS+ Tables. nismkdir - Create NIS+ Directories. nispasswd - Change NIS+ Password Information. nisrm - Remove NIS+ Objects from the Namespace. nisrmdir - Remove NIS+ Directories. nistbladm - Administer NIS+ Tables. nistest - Return the State of the NIS+ Namespace, Using Conditional Expression. nl - Line Numbering Filter. nm - Print Name List of an Object File. nohup - Run a Command Immune to Hangups. notify - Control Process Execution. nroff - Format Documents for Display or Line Printer.

O.

od - Octal Dump. on - Execute a Command on a Remote System, Using the Local Environment. onintr - Shell Built-in Functions to Respond to (Hardware) Signals. optisa - Determine Which Variant Instruction Set Is Optimal.

P.

pack, pcat, unpack - Compress and Expand Files. page - Browse or Page through a Text File. pagesize - Display the Size of a Page of Memory. passwd - Change Login Password and Password Attributes. paste - Merge Corresponding or Subsequent Lines of Files. patch - Apply Changes to Files. pathchk - Check Path Names. pax - Portable Archive Interchange. pcat - Compress and Expand Files. pcmapkeys - Set Keyboard Extended Map and Scan Code Translation for the PC Console in Text Mode. pcred - Proc Tools. pdp11 - Get Processor Type Truth Value. pfiles, pflags - Proc Tools. pg - Files Perusal Filter. pgrep, pkill - Find or Signal Processes. pkginfo - Display Software Package Information. pkgmk - Produce an Installable Package. pkgparam - Display Package Parameter Values. pkgproto - Generate Prototype File Entries for Input to pkgmk Command. pkgtrans - Translate Package Format. pkill - Find or Signal Processes. pldd - Proc Tools. plimit - Get or Set the Resource Limits of Running Processes. plot, aedplot, atoplot, bgplot, crtplot, dumbplot, gigiplot - Graphics Filters for Various Plotters. pmap - Proc Tools. popd - Change Working Directory. postdaisy - PostScript Translator for Diablo 630 Daisy-Wheel Files. postdmd - postio postmd - Matrix Display Program for PostScript Printers. postplot - PostScript Translator for plot(4) Graphics Files. postprint - PostScript Translator for Text Files. postreverse - Reverse the Page Order in a PostScript File. posttek - PostScript Translator for Tektronix 4014 Files. pr - Print Files. prex - Control Tracing in a Process or the Kernel. print - Shell Built-in Function to Output Characters to the Screen or Window. printenv - Display Current Environment Variable. printf - Write Formatted Output. priocntl - Display or Set Scheduling Parameters of Specified Process(es). proc, pflags, pcred, pmap, pldd, psig, pstack, pfiles, pwdx, pstop, prun, pwait, ptree, ptime - Proc Tools. prof - Display Profile Data. prs, sccs-prs - Display Selected Portions of an SSCS History. prt, sccs-prt - Display Delta Table Information from an SCCS File. prun - Proc Tools. ps - Report Process Status. psig, pstack, pstop, ptime, ptree - Proc Tools. pushd - Change Working Directory. pvs - Display the Internal Information of Dynamic Objects. pwait - Proc Tools. pwd - Return Working Directory Name. pwxd - Proc Tools.

R.

ranlib - Convert Archives to Random Libraries. rcp - Remote File Copy. rdist - Remote File Distribution Program. read - Read a Line from Standard Input. readonly - Shell Built-in Function to Protect the Value of the Given Variable from Reassignment. red - Text Editor. refer - Expand and Insert References from a Bibliographic Database. regcmp - Compile Regular Expressions. rehash - Evaluate the Internal Hash Table of the Contents of Directories. remote_shell, remsh - Remote Shell. renice - Alter Priority of Running Processes. repeat - Shell Built-in Function to Repeat Actions. reset - Establish or Restore Terminal Characteristics. return - Shell Built-in Function to Advance Beyond a Sequence of Steps. rksh - Korn Shell, a Standard/Restricted Command and Programming Language. rlogin - Remote Login. rm, rmdir - Remove Directory Entries. rmail - Read Mail or Send Mail to Users. rmdel - Remove a Delta from an SCCS File. rmdir - Remove Directory Entries. rmic - Java RMI Stub Compiler. rmiregistry - Register Remote Java Objects. roffbib - Format and Print a Bibliographic Database. rpcgen - RPC Protocol Compiler. rsh, remsh, remote_shell - Remote Shell. rup - Show Host Status of Remote Systems (RPC Version). ruptime - Show Host Status of Local Systems. rusage - Print Resource Usage for a Command. rusers - Display Who Is Logged In on Remote Systems. rwho - Display Who Is Logged In on Local Systems.

S.

sact - Show Editing Activity Status of an SCCS File. sag - System Activity Graph. sar - System Activity Reporter. sccs - Front End for the Source Code Control System (SCCS). sccs-admin, admin - Create and Administer SCCS History Files. sccs-cdc, cdc - Change the Commentary of an SCCS Delta. sccs-comb, comb - Combine SCCS Deltas. sccs-delta, delta - Make a Delta to an SCCS File. sccsdiff - Compare Two Versions of an SCCS File. sccs-get, get - Retrieve a Version of an SCCS File. sccs-help, help - Ask for Help Regarding SCCS Error or Warning Messages. sccs-prs, prs - Display Selected Portions of an SCCS History. sccs-prt, prt - Display Delta Table Information from an SCCS File. sccs-rmdel, rmdel - Remove a Delta from an SCCS File. sccs-sact, sact - Show Editing Activity Status of an SCCS File. sccs-sccsdiff, sccsdiff - Compare Two Versions of an SCCS File. sccs-unget, unget - Undo a Previous Get of an SCCS File. sccs-val, val - Validate an SCCS File. script - Make Record of a Terminal Session. sdiff - Print, Side-by-Side, Differences Between Two Files. sed - Stream Editor. select - Shell Built-in Functions to Choose from a List of Actions. Serialver - Show Serial Version. set, unset, setenv, unsetenv, export - Shell Environment Variable Built-in Functions. setfacl - Modify the Access Control List (ACL) for a File or Files. settime - Change File Access and Modification Times. sh, jsh - Standard and Job Control Shell and Command Interpreter. shell_builtins - Shell Command Interpreter Built-in Functions. shift - Shell Built-in Function to Traverse Either a Shell's Argument List or a List of Field-Separated Words. shutdown - Close Down the System at a Given Time. size - Print Section Sizes of Object Files in Bytes. sleep - Suspend Execution for an Interval. smart2cfg - Compaq Smart-2 EISA/PCI and Smart-2SL PCI Array Controller ioctl Command. soelim - Resolve and Eliminate .so Requests from nroff or troff Input. solregis - Solaris User Registration. sort - Sort, Merge, or Sequence Check Text Files. sortbib - Sort a Bibliographic Database. sotruss - Trace Shared Library Procedure Calls. source - Shell Built-in Function to Execute Other Commands. sparc - Get Processor Type Truth Value. spell, hashmake, spellin, hashcheck - Report Spelling Errors. spline - Interpolate Smooth Curve. split - Split a File into Pieces. srchtxt - Display Contents of, or Search for, a Text String in Message Databases. stop - Control Process Execution. strchg, strconf - Change or Query Stream Configuration. strings - Find Printable Strings in an Object or Binary File. strip - Strip Symbol Table, Debugging, and Line Number Information from an Object File. stty - Set the Options for a Terminal. sum - Print Checksum and Block Count for a File. sun - Get Processor Type Truth Value. suspend - Shell Built-in Function to Halt the Current Shell. switch - Shell Built-in Function to Choose from a List of Actions. symorder - Rearrange a List of Symbols. sysV-make - Maintain, Update, and Regenerate Groups of Programs.

T.

t300, t300s, t4014, t450 - Graphics Filters for Various Plotters. tabs - Set Tabs on a Terminal. tail - Look at the Last Part of a File. talk - Talk to Another User. tar - Create Tape Archives and Add or Extract Files. tbl - Format Tables for nroff or troff. tcopy - Copy a Magnetic Tape. tee - Replicate the Standard Output. tek - Graphics Filters for Various Plotters. telnet - User Interface to a Remote System, Using the TELNET Protocol. test - Evaluate Conditions. tftp - Trivial File Transfer Program. time - Time a Simple Command. times - Shell Built-in Function to Report Time Use of the Current Shell. timex - Time a Command; Report Process Data and System Activity. tip - Connect to Remote System. tnfdump - Convert Binary Trace Normal Form (TNF) File to ASCII. tnfxtract - Extract Kernel Probes Output into a Trace File. touch - Change File Access and Modification Times. tplot, t300, t300s, t4014, t450, tek, ver - Graphics Filters for Terminal Output of Various Plotters. tput - Initialize a Terminal or Query terminfo Database. tr - Translate Characters. trap, onintr - Shell Built-in Functions to Respond to Hardware Signals. troff - Typeset or Format Documents. true, false - Provide Truth Values. truss - Trace System Calls and Signals. tset, reset - Establish or Restore Terminal Characteristics. tsort - Topological Sort. tty - Return User's Terminal Name. type - Write a Description of Command Type. typeset, whence - Shell Built-in Command to Get/Set Attributes and Values for Shell Variables and Functions.

U.

u3b, u3b2, u3b5, u3b15, u370 - Get Processor Type Truth Value. ucblinks - Add /dev Entries for SunOS 4.x Compatibility. ul - Underline Text on Terminal Display. ulimit, unlimit - Set or Get Shell Limitations on System Resources. umask - Get or Set the File Mode Creation Mask. unalias - Remove Command Pseudonyms. uname - Print Name of Current System. uncompress - Uncompress or Display Expanded Files. unexpand - Convert Space Characters to Tabs. unget - Undo a Previous Get of an SCCS File. unhash - Evaluate the Internal Hash Table of the Contents of Directories. unifdef - Resolve and Remove ifdef'd Lines from C Program Source. uniq - Report or Filter Out Repeated Lines in a File. units - Convert Quantities Expressed in Standard Scales to Other Units. unix2dos - Convert Text File from ISO Format to DOS Format. unlimit - Set or Get Shell System Resource Limitations. unpack - Compress and Expand Files. unset, unsetenv - Shell Built-in Functions to Determine Environment Variable Characteristics. until - Shell Built-in Functions to Execute Actions Until Conditions Are Evaluated True. unzip - List, Test, and Extract Compressed Files from a Zip Archive. uptime - Show How Long a System Has Been Up. users - Display a Compact List of Logged-In Users. uucp, uulog, uuname - UNIX-to-UNIX System Copy. uuencode, uudecode - Encode or Decode a Binary File. uuglist - Print the List of Available Service Grades. uulog, uuname - UNIX-to-UNIX System Copy. uupick - Public UNIX-to-UNIX System File Copy. uustat - uucp Status Inquiry and Job Control. uuto, uupick - Public UNIX-to-UNIX System File Copy. uux - UNIX-to-UNIX System Command Execution.

V.

vacation - Reply to Mail Automatically. val - Validate an SCCS File. vax - Get Processor Type Truth Value. vc - Version Control. vedit - Screen-Oriented Visual Display Editor Based on ex. ver - Graphics Filters for Various Plotters. vgrind - Format Program Listings. vi, view, vedit - Screen-Oriented Visual Display Editor Based on ex. view - Screen-Oriented Visual Display Editor Based on ex. vipw - Edit the Password File. volcancel - Cancel Request for Removable Media Not Currently in Drive. volcheck - Check for Media in a Drive. volmissing - Notify User That Volume Requested Is Not in the CD-ROM or Diskette Drive. volrmmount - Call rmmount to Mount or Unmount Media. vplot - Graphics Filters for Various Plotters.

W.

w - Display Information About Currently Logged-in Users. wait - Await Process Completion. wc - Display a Count of Lines, Words, and Characters in a File. what - Extract SCCS Version Information from a File. whatis - Display a One-Line Summary About a Command. whence - Shell Built-in Function to Get/Set Shell Variable and Function Attributes and Values. whereis - Locate the Binary, Source, and Manual Page Files for a Command. which - Locate a Command; Display Its Path Name or Alias. while - Shell Built-in Function to Execute Conditional Actions. who - Report Who Is on the System. whoami - Display the Effective Current User Name. whocalls - Report on the Calls to a Specific Procedure. whois - Internet User Name Directory Service. write - Write to Another User.

X.

xargs - Construct Argument Lists and Invoke Command. xgettext - Extract gettext Call Strings from C Programs. xstr - Extract Strings from C Programs.

Y.

yacc - Yet Another Compiler-Compiler. ypcat - Print Values in an NIS Database. ypmatch - Print the Value of Keys from an NIS Map. yppasswd - Change Your Network Password in the NIS Database. ypwhich - Return Name of NIS Server of Map Master.

Z.

zcat - Compress, Uncompress Files or Display Expanded Files. Zipinfo - List Detailed Information About a Zip Archive.

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