Oracle Executables

Oracle Executables

This table lists executable programs in $ORACLE_HOME/bin (or %ORACLE_HOME%\bin on Windows) for Oracle Enterprise Edition, including shell scripts, Windows .bat files but excluding Windows DLLs or any that can't execute directly. It's not a complete list since what programs are in that directory depends on what options I chose at the time of software installation. I'm doing my best to give descriptions about each program and add some comments I consider useful or merely interesting. Many of them show Usage by typing the program name, or the name followed by some garbage argument, or -h, or sometimes help=y. "Not in 9i" means not in 9i or 10g (i.e. only in 8i).

Legend
`: Only exists on UNIX
*: Only exists on Windows

Program Name Notes

acro* Not in 9i

adapters` Running with no argument returns info about installed Oracle Net (SQL*Net) adapters. Running with path to an Oracle binary file (oracle, sqlplus,...) shows whether the binary has Oracle Net symbols in it.

agent* Possibly used in SNMP

agentctl Oracle%oracle_home%Agent service Control (not in 10g)

agntsvc* Oracle%oracle_home%Agent service, used by EM

agtctl (Oracle Heterogeneous Services) Agent Control Utility See ORA-28591

asmtool 10g only

asmtoolg GUI version of ASM tool

bbed* Block Browser and Editor Oracle internal use only. Not in 9i. On UNIX, you have to make it. Ref: 1, 2.

bulkmodify See Oracle Internet Directory Administrator's Guide, Appendix A "Syntax for LDIF and Command Line Tools". Not in 10g

cemutls 10g

cfo* Configure FAN ONS FAN ONS Publisher program, 10.2.0.3 and later (see Note:405120.1)

clscfg 10g

clsfmt 10g

cmadmin` Not in 9i

cmctl` Not in 9i

cmgw` Not in 9i

coraenv` Oracle Environment C Shell csh script to set up Ora Env; csh version of oraenv

crsctl, crssetup Cluster Ready Services Control and Setup utilities 10g

csscan Character Set Scanner

ctxhx* Called by intermedia server

ctxkbtc

ctxlc 10g

ctxload

ctxsrv Intermedia server Not in 10g

ctxsvc* Intermedia service Not in 10g

cursize` Not in 10g

dbca.bat Database Config Assistant Used to create and configure a database (called dbassist in 8i)

DBConsole.pm Perl Module to provide start, stop, status functionality (10g)

dbfmig`

dbfsize` Database File Size Info If run on redo logfiles, also reports redo block size (the same value as x$kccle.lebsz or if in archivelog mode, v$archived_log.block_size). Run on controlfiles, it also reports controlfile block size, which should be the same as db_block_size. dbfsize also tells you whether the file is filesystem or raw partition based (Quick I/O reported as raw).

dbhome`

dbma.bat 10g

dbshut` Database Shutdown Script

dbsnmp Database Intelligent (SNMP) Agent According to marty.grinstead at oracle.com, "spawned when the IA is running a scheduled job". If the agent is not configured correctly, running it causes database shutdown immediate to hang. Not in 10g

dbsnmpj* Database Intelligent (SNMP) Agent. Not in 10g

dbsnmpwd.bat Not in 10g

dbstart` Database Startup Script

dbua`

dbv Datafile Verification See Oracle Utilities

debugproxy Not in 10g

demobld` Not in 10g

demodrop` Not in 10g

deploync

dgmgrl Data Guard Manager

dropjava

dumpsga`

dsml2ldif* XML Parser utility to generate LDAP ldif files

e2eme 10g

echodo` In shell script, echo the command followed by run it

ela 10g

emagent, emagtm, emca.bat, emctl.bat, emdctl, emtgtctl, emwd.bat 10g, EM-related

encaps* Not in 10g

encsvc* Oracle SNMP Peer Encapsulator service

esm Enterprise Security Manager Not in 10g

exp Export See Oracle Utilities

expdb Data Pump Export 10g

extjob 10g

extjobo 10g

extractlib`

extproc External Procedure

extusrupgrade Upgrade externally authenticated SSL users. 10gR2

fmputl`

fmputlhp`

gatekeeper Not in 9i

genagtsh`

genautab` Not in 9i

genclntsh` Generate Client Shared Libraries

genclntst`

genksms` Generate ksms.s, the assembly language source file listing contents of SGA fixed region. E.g., .set kcrfal_,sgabeg+19072 says kcrfl (redo allocation) structure is stored in the fixed region, 19072 bytes from the beginning of SGA. (J.Morle Scaling Oracle8i, pp.260-1)

gennfgt`

gennttab`

genoccish`

gensyslib`

helpins SQL*Plus Help Installation Beginning with Oracle8, only Help for SQL*Plus, not SQL, is installed.

hsalloci Heterogeneous Agent (Server) with Driver for Oracle using OCI

hsdepxa Heterogeneous Agent (Server) with XA compliant Distributed External Procedure driver

hsodbc Heterogeneous Agent (Server) ODBC driver

hsolefs* Heterogeneous Agent (Server) OLE driver

hsolesql* Heterogeneous Agent (Server) OLE driver

hsots Heterogeneous Agent (Server) with XA compliant OTS driver

idl2ir Interface Definition Language to Interface Repository converter Not in 9i

i*.flt* various Graphic Import Filters To find out, copy them to another filename with EXE as filename extension and look at their properties in Windows Explorer. They're all from Stellent, Inc.

imp Import utility See Oracle Utilities

impdb Data Pump Import 10g

irep Interface Repository Not in 9i

isqlplusctl, isqlplussvc* iSqlplus Control or Service 10g only. In 9i, you simply uncomment the line in oracle_apache.conf and start Apache. In 10g, you have to run isqlplusctl start to start the J2EE process (Windows service).

java2idl Java to Interface Definition Language converter (not in 9i)

java2iiop Java to Internet Inter-Orb Protocol converter (not in 9i)

java2rmi_iiop` Java to Remote Method Invocation Internet Inter-Orb Protocol converter (not in 9i)

jpub JPublisher Not in 10g

kfod "OSM Discovery utility" (from oraInventory/logs/installActions.log or make output) 10g. Probably should be called ASM Disk Discovery utility. Note:359266.1 and Bug:4531822 have a little more info.

kgmgr` Forum:486682.995: "a proprietary utility used by several of our client products"

kgpmon`

launch* Program Launcher E.g., on Windows, Oracle Net Assistant is not started by netasst program, which doesn't exist; instead it's launched by: %ORACLE_HOME%\bin\launch.exe "%ORACLE_HOME%\network\tools" netasst.cl. There're many other .cl files scattered around which basically call jrew somejarfile.

launchem* EM Launcher Not in 10g

lbuilder 10g

lcsscan 10g

ldapadd See Oracle Internet Directory Administrator's Guide, Chapter "Managing Directory Entries"

ldapaddmt see above

ldapbind see above

ldapcompare see above

ldapdelete see above

ldapmoddn see above

ldapmodify see above

ldapmodifymt see above

ldapsearch see above

ldifmigrator OID Migration tool 9iUNIX or 10g. Migrates data from application-specific repositories into Oracle Internet Directory.

ldifwrite See Oracle Internet Directory Administrator's Guide, Appendix A "Syntax for LDIF and Command Line Tools". Not in 10g

lmsgen NLS Binary Message File Generation Used to generate .msb files like oraus.msb

loadjava To load java classes into the database

loadpsp

localconfig 10g

locserv

lsnodes List Nodes lists all nodes or a specific node in a RAC configuration if RAC is installed (10g or conditionally installed in 9i)

lsnrctl TNS Listener Control Launches tnslsnr process. See tnslsnr below. Be careful when you type lsnrctl stop (or reload) on client side, unless DBA has set password on the server side (see Item 15 on my Idiosyncrasies page).

lxchknlb`

lxegen NLS Calendar

lxinst NLS Data Installation

mapsga`

maxmem` Maximum Memory for a process Oracle process virtual memory size is limited by the smaller of maxmem and ulimit -m. Windows doesn't have this utility simply because a process on Windows can potentially use all memory minus kernel non-paged pool.

mergelib` Not in 9i

mig Oracle Migration/Upgrading Not in 10g. 9i documentation says mig "converts the data dictionary and structures of an Oracle7 database into Oracle9i format". 10g doesn't support direct upgrade from Oracle7 so it stops shipping this tool.

migprep Migration/Upgrading Preparation Not in 10g. See above comments.

mkstore 10g

modifyprops* Not in 9i

NAEGEN* Diffie Hellman Parameter Generation Not in 10g

namesctl Oracle Names Server Control Not in 10g

ncomp

netasst` Network Assistant See launch above for how to start it on Windows (Not in 9i)

netca Net Configuration Assistant 9iUNIX or 10g

netca_deinst Net Configuration Assistant Deinstall 10g

netlaunch`

netmgr`

nid DB New ID Change DBID so a database cloned using the traditional method (instead of DUPLICATEd by RMAN) can register with the same RMAN catalog as the source DB. The syntax is nid target=sys/syspassword. (It's not nid target="sys/syspassword as sysdba" even if you need as sysdba for sqlplus). After running nid, you have to open resetlogs, and database resetlogs time and v$thread.enable_time will both be updated.

nmei, nmelproc, nmeo, nmesrvc, nmesrvcops, nmetm, nmo, nmocat, nmuct, nmupm 10g

nmudg Not in 10g

nmumigrate (8i), nmumigr8 (9i) Oracle Data Gatherer or DG Cartridge Migration Not in 10g

oadj Not in 9i

oadutil Object Activation Daemon Utility In Discoverer, type oadutil list to check services registered with OAD (not in 9i)

ociconv` OCI Conversion

ocm Not in 10g

ocm_oratclsh` Not in 10g

ocopy* Oracle file copy program Allegedly the only tool you should use to copy open datafiles. There's no difference between filesystem files copied by this and by DOS copy command. But if you use raw "files" (raw partitions used as Oracle datafiles), ocopy (or RMAN) has to be used.

ocrcheck, ocrconfig, ocrdump Oracle Cluster Registry Check, Config and Dump utilities 10g

ocssd 10g

odisrv Not in 10g

odisrvreg Not in 10g

odma` Not in 9i

odpreg 10g

oemapp

oemautil.bat* Oracle Intelligent Agent

oemctl.bat*

oemevent Oracle Intelligent Agent

oemPingOmsInternal.bat*

oerr` Oracle Error See my freeware Windowsoerr

oidadmin` Oracle Internet Directory Admin On Windows, you launch Oracle Directory Manager (a jrew application) in Integrated Management Tools program group.

oidca 10g

oidpasswd

oidprovtool OID Provisioning Tool 9i UNIX or 10g. Used to create a subscription profile for OID subscribers such as Portal.

oidreconcile

ojspc Oracle JSP Compiler Not in 10g

ojvmjava 9i UNIX or 10g

okdstry Kerberos utility

okinit Kerberos utility

oklist Kerberos utility

olsadmintool 10g

olsoidsync 10g

onrsd Oracle Names client cache Not in 10g

onsctl 10g

oo4ocodewiz* Oracle Objects for OLE Code Wizard for stored procedures

operfcfg* Oracle Perfmon Config

oracg

oracle Oracle RDBMS Kernel Executable On UNIX, if dedicated configuration, every client process such as sqlplus or Toad, connects to tnslsnr, which fork()'s and then exec()'s oracle kernel program, $ORACLE_HOME/bin/oracle. The oracle process thus created is called a server process, or a shadow process to emphasize the client-server two-task nature. This server process is renamed to oracleSID (DESCRIPTION=(LOCAL=... for easy identification and troubleshooting. But its program (process text) is still this oracle binary. You should never directly run this binary; or you may get ORA-600 [12235] (See Note:33174.1). You should also avoid changing the process priority according to Oracle. But Steve Adams tested and noticed it may improve DBWn performance if its priority is increased. You should also avoid stripping the oracle binary or you may lose symbol information in trace files. But you can certainly run nm on it to get symbols such as sgabeg in this file. The only way for us to find all undocumented SQL hints is by running strings on it.
On Windows, there's always only one oracle.exe process for one instance. Each server "process" is just a Windows thread inside this process. If you have multiple Oracle instances running in Windows, you can identify the process for a specific instance by tools such as tlist.

OracleAdNetConnect* OracleAdNetConnect MFC Application

OracleAdNetTest*

oradim* Used to create a Windows service named OracleServiceSID

oradism` Oracle Dynamic Intimate Shared Memory Used on Solaris to configure Dynamic ISM, so as to get the benefit of shared page table between processes while allowing for SGA to be not completely locked in physical memory

oraenv` Setup Oracle Environment; run as . oraenv and pass SID to it

orakill* Usage: orakill instance_name v$process.spid. Used to kill a specific thread inside oracle.exe process. Apparently orakill does a little more than just killing the thread because using a non-Oracle tool such as Sysinternals's Process Explorer to kill a thread in oracle.exe doesn't always make a hanging session and its lock go away; you may have to manually run oradebug wakeup 1 to wake up pmon (which should clear the lock and v$session / v$process, but the client app may still hang). If you can't run orakill for any reason, use a tool like Process Explorer, followed by manual pmon wakeup.

orapipe In 10g. Read Oracle XML Developer's Kit Programmer's Guide, Chapter "Pipeline Definition Language for Java"

orapki Oracle Public Key Infrastructure utility In 10g. Read Oracle Database Advanced Security Administrator's Guide, Chapter "Configuring Secure Sockets Layer Authentication"

orapwd Oracle Password utility Used to create a password file for SYSDBA and SYSOPER connection. On Windows, you can also use oradim as a second choice (you have to delete and recreate if the password already exists).

orastack* Oracle Stack modification Used to resize the stack of an Oracle executable file such as oracle.exe, tnslsnr.exe (one way of preventing ORA-12500). Type the command at DOS to see an excellent description. (Not equivalent to pstack available on some UNIXes used to dump stack trace of a running process, but more like Solaris command ppgsz -o stack=... except it works on file not process)

oratclsh Oracle TCL Shell TCL programming language shell for Oracle. In spite of Oracle's advocacy, few people actually used it and now it's silently deprecated by Oracle, probably in favor of Perl. One trivial usage is to retrieve error messages on any OS (see examples here). Extensive use can be found in J. Morle's Scaling Oracle8i. Not in 10g Windows and not working in 10g Linux/UNIX.

oraxml

oraxsl

osagent* Visibroker OS Agent Type osagent -? (or -h) to see Usage (not in 9i)

osfind* Visibroker utility to find OS agents (not in 9i)

osh`

otrccol Oracle Trace Collection See Oracle Designing and Tuning for Performance, Chapter "Using Oracle Trace". Not in 10g since Oracle Trace is deprecated.

otrccref see above

otrcfmt see above

otrcrep see above

ott

ott8 Not in 10g

owhat` Oracle what Runs UNIX what command on programs listed in arguments to find patches; doesn't work well; suggest you run what directly. Not in 10g

owm` Oracle Wallet Manager Windows has owm.dll and owm.cl, but not owm.exe or .bat

pagntsrv* Not in 10g

passwdconvert Not in 10g

printIOR* Not in 9i

proc Proc*C/C++ compiler

procob, procob18, procob18_32, procob32 Not in 10g

procui* Not in 10g

profor` Not in 10g

proxyserv` Not in 10g

publish Not in 9i

pupbld Product User Profile Build Creates Product User Profile tables for SQL*Plus

rawutl 10g

relink` Not in 10g

remove Not in 9i

remtool` Not in 10g

repo_mig 10g

rman Recover Manager

rtsora`, rtsora32` Not in 10g

runInstaller` Not in 10g. 10g Windows uses %oracle_home%\oui\bin\setup.exe.

sbttest`

schema

schemasync Not in 10g

sclsspawn 10g

searchctl 10g

selecthome.bat* and others 10g only. 10g doesn't have Home Selector in Start menu. Instead launch OUI to select Home. OUI runs selecthome.bat internally.

sess_sh Not in 9i

setlinks* You can use setlinks /d to show Windows devices. Not in 9i

sqlj SQLJ engine Not in 10g (SqlJ is deprecated)

sqlldr SQL*Loader See Oracle Utilities

sqlplus SQL*Plus 10g has two new command line options: -C sets SQL*Plus compatibility version; -L attempts log on just once.

sqlplusw* SQL*Plus for Windows

statusnc

svrmgrl Server Manager Not in 9i. Use sqlplus '/ as sysdba' instead (substitute " for ' in Windows)

symfind` Symbol Finder. Documented in 10g Admin's Reference for UNIX.

sysresv` System Resources Viewer Shows IPC resources: shared memory segments and semaphores

tdvapp* Not in 10g

tkprof Used to get more meaningful output from a session trace file

tnslsnr TNS listener You run this program from lsnrctl. Only run this program directly, as root, if you start listener on a port below 1024 on UNIX; even in this case, stopping the listener can be done with lsnrctl.

tnsping TNS Ping Note you can have two arguments, the second being the number of times the listener is pinged.

transx XML Translator See XML Developer's Kit Programmer's Guide, Chapter "TransX Utility"

trcasst SQL*Net Trace Assistant Used to analyze SQL*Net trace file

trcsess Session Trace In 10g. See Database Performance Tuning Guide, Chapter "Using Application Tracing Tools". It merges multiple SQL trace files for a session to be used by tkprof. Useful in Shared Server session trace. Before 10g, try OraSRP.

trcfmt` See otrcfmt. Not in 10g

trcroute` Trace Route Hopefully it can offer more insight than tnsping into a failed Oracle Net connection.

tstshm` Test Shared Memory

umu User Migration Utility Migrate database users to a directory

unzip decompressing tool

vbdebug VisiDebugger Not in 9i

vbj Not in 9i

vbj_convert Not in 9i

vbjc Not in 9i

vdoshell* Not in 10g

vipca 10g

vmq* Not in 10g

vppcntl Oracle Data Gatherer Executable "Control utility for the Data Gatherer" (marty.grinstead at oracle.com). Not in 9i

vppdc Oracle Intelligent Agent Executable "Data Gatherer - collects data for Performance Manager and Capacity Planner" (marty.grinstead at oracle.com). Not in 9i

vtushell* Not in 10g

wrap PL/SQL code Wrapper Used to encrypt code to protect source code. Until 10g, string literals are not protected; "Hello world!" will be shown as "1Hello world!" in xxx_SOURCE.

xml

xmlcg

xpautune* Not in 10g

xpcoin* Not in 10g

xpksh* Not in 10g

xpui* Not in 10g

xsl 10g

xsql

xsqlproxy*

xvm 10g

zip*

Relevant Links Dave Moore's Oracle Utilities

To my Computer Page

Program	Name	Notes
acro*		Not in 9i
adapters`		Running with no argument returns info about installed Oracle Net (SQL*Net) adapters. Running with path to an Oracle binary file (oracle, sqlplus,...) shows whether the binary has Oracle Net symbols in it.
agent*		Possibly used in SNMP
agentctl		Oracle%oracle_home%Agent service Control (not in 10g)
agntsvc*		Oracle%oracle_home%Agent service, used by EM
agtctl	(Oracle Heterogeneous Services) Agent Control Utility	See ORA-28591
asmtool		10g only
asmtoolg		GUI version of ASM tool
bbed*	Block Browser and Editor	Oracle internal use only. Not in 9i. On UNIX, you have to `make` it. Ref: 1, 2.
bulkmodify		See Oracle Internet Directory Administrator's Guide, Appendix A "Syntax for LDIF and Command Line Tools". Not in 10g
cemutls		10g
cfo*	Configure FAN ONS	FAN ONS Publisher program, 10.2.0.3 and later (see Note:405120.1)
clscfg		10g
clsfmt		10g
cmadmin`		Not in 9i
cmctl`		Not in 9i
cmgw`		Not in 9i
coraenv`	Oracle Environment C Shell	csh script to set up Ora Env; csh version of oraenv
crsctl, crssetup	Cluster Ready Services Control and Setup utilities	10g
csscan	Character Set Scanner
ctxhx*		Called by intermedia server
ctxkbtc
ctxlc		10g
ctxload
ctxsrv	Intermedia server	Not in 10g
ctxsvc*	Intermedia service	Not in 10g
cursize`		Not in 10g
dbca.bat	Database Config Assistant	Used to create and configure a database (called dbassist in 8i)
DBConsole.pm		Perl Module to provide start, stop, status functionality (10g)
dbfmig`
dbfsize`	Database File Size Info	If run on redo logfiles, also reports redo block size (the same value as x$kccle.lebsz or if in archivelog mode, v$archived_log.block_size). Run on controlfiles, it also reports controlfile block size, which should be the same as db_block_size. `dbfsize` also tells you whether the file is filesystem or raw partition based (Quick I/O reported as raw).
dbhome`
dbma.bat		10g
dbshut`	Database Shutdown Script
dbsnmp	Database Intelligent (SNMP) Agent	According to marty.grinstead at oracle.com, "spawned when the IA is running a scheduled job". If the agent is not configured correctly, running it causes database `shutdown immediate` to hang. Not in 10g
dbsnmpj*	Database Intelligent (SNMP) Agent. Not in 10g
dbsnmpwd.bat	Not in 10g
dbstart`	Database Startup Script
dbua`
dbv	Datafile Verification	See Oracle Utilities
debugproxy		Not in 10g
demobld`		Not in 10g
demodrop`		Not in 10g
deploync
dgmgrl		Data Guard Manager
dropjava
dumpsga`
dsml2ldif*		XML Parser utility to generate LDAP ldif files
e2eme		10g
echodo`		In shell script, `echo` the command followed by run it
ela		10g
emagent, emagtm, emca.bat, emctl.bat, emdctl, emtgtctl, emwd.bat		10g, EM-related
encaps*		Not in 10g
encsvc*	Oracle SNMP Peer Encapsulator service
esm	Enterprise Security Manager	Not in 10g
exp	Export	See Oracle Utilities
expdb	Data Pump Export	10g
extjob		10g
extjobo		10g
extractlib`
extproc	External Procedure
extusrupgrade		Upgrade externally authenticated SSL users. 10gR2
fmputl`
fmputlhp`
gatekeeper		Not in 9i
genagtsh`
genautab`		Not in 9i
genclntsh`	Generate Client Shared Libraries
genclntst`
genksms`		Generate ksms.s, the assembly language source file listing contents of SGA fixed region. E.g., `.set kcrfal_,sgabeg+19072` says `kcrfl` (redo allocation) structure is stored in the fixed region, 19072 bytes from the beginning of SGA. (J.Morle Scaling Oracle8i, pp.260-1)
gennfgt`
gennttab`
genoccish`
gensyslib`
helpins	SQL*Plus Help Installation	Beginning with Oracle8, only Help for SQL*Plus, not SQL, is installed.
hsalloci	Heterogeneous Agent (Server) with Driver for Oracle using OCI
hsdepxa	Heterogeneous Agent (Server) with XA compliant Distributed External Procedure driver
hsodbc	Heterogeneous Agent (Server) ODBC driver
hsolefs*	Heterogeneous Agent (Server) OLE driver
hsolesql*	Heterogeneous Agent (Server) OLE driver
hsots	Heterogeneous Agent (Server) with XA compliant OTS driver
idl2ir	Interface Definition Language to Interface Repository converter	Not in 9i
i.flt	various Graphic Import Filters	To find out, copy them to another filename with EXE as filename extension and look at their properties in Windows Explorer. They're all from Stellent, Inc.
imp	Import utility	See Oracle Utilities
impdb	Data Pump Import	10g
irep	Interface Repository	Not in 9i
isqlplusctl, isqlplussvc*	iSqlplus Control or Service	10g only. In 9i, you simply uncomment the line in oracle_apache.conf and start Apache. In 10g, you have to run `isqlplusctl start` to start the J2EE process (Windows service).
java2idl	Java to Interface Definition Language converter (not in 9i)
java2iiop	Java to Internet Inter-Orb Protocol converter (not in 9i)
java2rmi_iiop`	Java to Remote Method Invocation Internet Inter-Orb Protocol converter (not in 9i)
jpub	JPublisher	Not in 10g
kfod	"OSM Discovery utility" (from oraInventory/logs/installActions.log or make output)	10g. Probably should be called ASM Disk Discovery utility. Note:359266.1 and Bug:4531822 have a little more info.
kgmgr`		Forum:486682.995: "a proprietary utility used by several of our client products"
kgpmon`
launch*	Program Launcher	E.g., on Windows, Oracle Net Assistant is not started by netasst program, which doesn't exist; instead it's launched by: %ORACLE_HOME%\bin\launch.exe "%ORACLE_HOME%\network\tools" netasst.cl. There're many other .cl files scattered around which basically call jrew somejarfile.
launchem*	EM Launcher	Not in 10g
lbuilder		10g
lcsscan		10g
ldapadd		See Oracle Internet Directory Administrator's Guide, Chapter "Managing Directory Entries"
ldapaddmt		see above
ldapbind		see above
ldapcompare		see above
ldapdelete		see above
ldapmoddn		see above
ldapmodify		see above
ldapmodifymt		see above
ldapsearch		see above
ldifmigrator	OID Migration tool	9iUNIX or 10g. Migrates data from application-specific repositories into Oracle Internet Directory.
ldifwrite		See Oracle Internet Directory Administrator's Guide, Appendix A "Syntax for LDIF and Command Line Tools". Not in 10g
lmsgen	NLS Binary Message File Generation	Used to generate .msb files like oraus.msb
loadjava		To load java classes into the database
loadpsp
localconfig		10g
locserv
lsnodes	List Nodes	lists all nodes or a specific node in a RAC configuration if RAC is installed (10g or conditionally installed in 9i)
lsnrctl	TNS Listener Control	Launches tnslsnr process. See tnslsnr below. Be careful when you type lsnrctl stop (or reload) on client side, unless DBA has set password on the server side (see Item 15 on my Idiosyncrasies page).
lxchknlb`
lxegen	NLS Calendar
lxinst	NLS Data Installation
mapsga`
maxmem`	Maximum Memory for a process	Oracle process virtual memory size is limited by the smaller of `maxmem` and `ulimit -m`. Windows doesn't have this utility simply because a process on Windows can potentially use all memory minus kernel non-paged pool.
mergelib`		Not in 9i
mig	Oracle Migration/Upgrading	Not in 10g. 9i documentation says `mig` "converts the data dictionary and structures of an Oracle7 database into Oracle9i format". 10g doesn't support direct upgrade from Oracle7 so it stops shipping this tool.
migprep	Migration/Upgrading Preparation	Not in 10g. See above comments.
mkstore		10g
modifyprops*		Not in 9i
NAEGEN*	Diffie Hellman Parameter Generation	Not in 10g
namesctl	Oracle Names Server Control	Not in 10g
ncomp
netasst`	Network Assistant	See launch above for how to start it on Windows (Not in 9i)
netca	Net Configuration Assistant	9iUNIX or 10g
netca_deinst	Net Configuration Assistant Deinstall	10g
netlaunch`
netmgr`
nid	DB New ID	Change DBID so a database cloned using the traditional method (instead of DUPLICATEd by RMAN) can register with the same RMAN catalog as the source DB. The syntax is `nid target=sys/syspassword`. (It's not `nid target="sys/syspassword as sysdba"` even if you need `as sysdba` for `sqlplus`). After running nid, you have to open resetlogs, and database resetlogs time and v$thread.enable_time will both be updated.
nmei, nmelproc, nmeo, nmesrvc, nmesrvcops, nmetm, nmo, nmocat, nmuct, nmupm		10g
nmudg		Not in 10g
nmumigrate (8i), nmumigr8 (9i)	Oracle Data Gatherer or DG Cartridge Migration	Not in 10g
oadj		Not in 9i
oadutil	Object Activation Daemon Utility	In Discoverer, type `oadutil list` to check services registered with OAD (not in 9i)
ociconv`	OCI Conversion
ocm		Not in 10g
ocm_oratclsh`		Not in 10g
ocopy*	Oracle file copy program	Allegedly the only tool you should use to copy open datafiles. There's no difference between filesystem files copied by this and by DOS copy command. But if you use raw "files" (raw partitions used as Oracle datafiles), ocopy (or RMAN) has to be used.
ocrcheck, ocrconfig, ocrdump	Oracle Cluster Registry Check, Config and Dump utilities	10g
ocssd		10g
odisrv		Not in 10g
odisrvreg		Not in 10g
odma`		Not in 9i
odpreg		10g
oemapp
oemautil.bat*	Oracle Intelligent Agent
oemctl.bat*
oemevent	Oracle Intelligent Agent
oemPingOmsInternal.bat*
oerr`	Oracle Error	See my freeware Windowsoerr
oidadmin`	Oracle Internet Directory Admin	On Windows, you launch Oracle Directory Manager (a jrew application) in Integrated Management Tools program group.
oidca		10g
oidpasswd
oidprovtool	OID Provisioning Tool	9i UNIX or 10g. Used to create a subscription profile for OID subscribers such as Portal.
oidreconcile
ojspc	Oracle JSP Compiler	Not in 10g
ojvmjava		9i UNIX or 10g
okdstry	Kerberos utility
okinit	Kerberos utility
oklist	Kerberos utility
olsadmintool		10g
olsoidsync		10g
onrsd	Oracle Names client cache	Not in 10g
onsctl		10g
oo4ocodewiz*	Oracle Objects for OLE Code Wizard for stored procedures
operfcfg*	Oracle Perfmon Config
oracg
oracle	Oracle RDBMS Kernel Executable	On UNIX, if dedicated configuration, every client process such as sqlplus or Toad, connects to tnslsnr, which `fork()`'s and then `exec()`'s oracle kernel program, $ORACLE_HOME/bin/oracle. The oracle process thus created is called a server process, or a shadow process to emphasize the client-server two-task nature. This server process is renamed to `oracleSID (DESCRIPTION=(LOCAL=...` for easy identification and troubleshooting. But its program (process text) is still this oracle binary. You should never directly run this binary; or you may get ORA-600 [12235] (See Note:33174.1). You should also avoid changing the process priority according to Oracle. But Steve Adams tested and noticed it may improve DBWn performance if its priority is increased. You should also avoid `strip`ping the oracle binary or you may lose symbol information in trace files. But you can certainly run `nm` on it to get symbols such as `sgabeg` in this file. The only way for us to find all undocumented SQL hints is by running `strings` on it. On Windows, there's always only one oracle.exe process for one instance. Each server "process" is just a Windows thread inside this process. If you have multiple Oracle instances running in Windows, you can identify the process for a specific instance by tools such as `tlist.`
OracleAdNetConnect*	OracleAdNetConnect MFC Application
OracleAdNetTest*
oradim*		Used to create a Windows service named OracleServiceSID
oradism`	Oracle Dynamic Intimate Shared Memory	Used on Solaris to configure Dynamic ISM, so as to get the benefit of shared page table between processes while allowing for SGA to be not completely locked in physical memory
oraenv`		Setup Oracle Environment; run as `. oraenv` and pass SID to it
orakill*		Usage: orakill instance_name v$process.spid. Used to kill a specific thread inside oracle.exe process. Apparently orakill does a little more than just killing the thread because using a non-Oracle tool such as Sysinternals's Process Explorer to kill a thread in oracle.exe doesn't always make a hanging session and its lock go away; you may have to manually run `oradebug wakeup 1` to wake up pmon (which should clear the lock and v$session / v$process, but the client app may still hang). If you can't run orakill for any reason, use a tool like Process Explorer, followed by manual pmon wakeup.
orapipe		In 10g. Read Oracle XML Developer's Kit Programmer's Guide, Chapter "Pipeline Definition Language for Java"
orapki	Oracle Public Key Infrastructure utility	In 10g. Read Oracle Database Advanced Security Administrator's Guide, Chapter "Configuring Secure Sockets Layer Authentication"
orapwd	Oracle Password utility	Used to create a password file for SYSDBA and SYSOPER connection. On Windows, you can also use oradim as a second choice (you have to delete and recreate if the password already exists).
orastack*	Oracle Stack modification	Used to resize the stack of an Oracle executable file such as oracle.exe, tnslsnr.exe (one way of preventing ORA-12500). Type the command at DOS to see an excellent description. (Not equivalent to `pstack` available on some UNIXes used to dump stack trace of a running process, but more like Solaris command `ppgsz -o stack=...` except it works on file not process)
oratclsh	Oracle TCL Shell	TCL programming language shell for Oracle. In spite of Oracle's advocacy, few people actually used it and now it's silently deprecated by Oracle, probably in favor of Perl. One trivial usage is to retrieve error messages on any OS (see examples here). Extensive use can be found in J. Morle's Scaling Oracle8i. Not in 10g Windows and not working in 10g Linux/UNIX.
oraxml
oraxsl
osagent*	Visibroker OS Agent	Type osagent -? (or -h) to see Usage (not in 9i)
osfind*		Visibroker utility to find OS agents (not in 9i)
osh`
otrccol	Oracle Trace Collection	See Oracle Designing and Tuning for Performance, Chapter "Using Oracle Trace". Not in 10g since Oracle Trace is deprecated.
otrccref		see above
otrcfmt		see above
otrcrep		see above
ott
ott8		Not in 10g
owhat`	Oracle what	Runs UNIX what command on programs listed in arguments to find patches; doesn't work well; suggest you run `what` directly. Not in 10g
owm`	Oracle Wallet Manager	Windows has owm.dll and owm.cl, but not owm.exe or .bat
pagntsrv*		Not in 10g
passwdconvert		Not in 10g
printIOR*		Not in 9i
proc	Proc*C/C++ compiler
procob, procob18, procob18_32, procob32		Not in 10g
procui*		Not in 10g
profor`		Not in 10g
proxyserv`		Not in 10g
publish		Not in 9i
pupbld	Product User Profile Build	Creates Product User Profile tables for SQL*Plus
rawutl		10g
relink`		Not in 10g
remove		Not in 9i
remtool`		Not in 10g
repo_mig		10g
rman	Recover Manager
rtsora`, rtsora32`		Not in 10g
runInstaller`		Not in 10g. 10g Windows uses %oracle_home%\oui\bin\setup.exe.
sbttest`
schema
schemasync		Not in 10g
sclsspawn		10g
searchctl		10g
selecthome.bat* and others		10g only. 10g doesn't have Home Selector in Start menu. Instead launch OUI to select Home. OUI runs selecthome.bat internally.
sess_sh		Not in 9i
setlinks*		You can use `setlinks /d` to show Windows devices. Not in 9i
sqlj	SQLJ engine	Not in 10g (SqlJ is deprecated)
sqlldr	SQL*Loader	See Oracle Utilities
sqlplus	SQL*Plus	10g has two new command line options: -C sets SQL*Plus compatibility version; -L attempts log on just once.
sqlplusw*	SQL*Plus for Windows
statusnc
svrmgrl	Server Manager	Not in 9i. Use sqlplus '/ as sysdba' instead (substitute " for ' in Windows)
symfind`	Symbol Finder.	Documented in 10g Admin's Reference for UNIX.
sysresv`	System Resources Viewer	Shows IPC resources: shared memory segments and semaphores
tdvapp*		Not in 10g
tkprof		Used to get more meaningful output from a session trace file
tnslsnr	TNS listener	You run this program from lsnrctl. Only run this program directly, as root, if you start listener on a port below 1024 on UNIX; even in this case, stopping the listener can be done with lsnrctl.
tnsping	TNS Ping	Note you can have two arguments, the second being the number of times the listener is pinged.
transx	XML Translator	See XML Developer's Kit Programmer's Guide, Chapter "TransX Utility"
trcasst	SQL*Net Trace Assistant	Used to analyze SQL*Net trace file
trcsess	Session Trace	In 10g. See Database Performance Tuning Guide, Chapter "Using Application Tracing Tools". It merges multiple SQL trace files for a session to be used by tkprof. Useful in Shared Server session trace. Before 10g, try OraSRP.
trcfmt`		See otrcfmt. Not in 10g
trcroute`	Trace Route	Hopefully it can offer more insight than tnsping into a failed Oracle Net connection.
tstshm`	Test Shared Memory
umu	User Migration Utility	Migrate database users to a directory
unzip		decompressing tool
vbdebug	VisiDebugger	Not in 9i
vbj		Not in 9i
vbj_convert		Not in 9i
vbjc		Not in 9i
vdoshell*		Not in 10g
vipca		10g
vmq*		Not in 10g
vppcntl	Oracle Data Gatherer Executable	"Control utility for the Data Gatherer" (marty.grinstead at oracle.com). Not in 9i
vppdc	Oracle Intelligent Agent Executable	"Data Gatherer - collects data for Performance Manager and Capacity Planner" (marty.grinstead at oracle.com). Not in 9i
vtushell*		Not in 10g
wrap	PL/SQL code Wrapper	Used to encrypt code to protect source code. Until 10g, string literals are not protected; "Hello world!" will be shown as "1Hello world!" in xxx_SOURCE.
xml
xmlcg
xpautune*		Not in 10g
xpcoin*		Not in 10g
xpksh*		Not in 10g
xpui*		Not in 10g
xsl		10g
xsql
xsqlproxy*
xvm		10g
zip*