# Data about titles, sections, and URLs of manuals, used to expand references # in tag descriptions and add links for HTML output. Each line of this file # has three fields separated by double colons: # #
:: :: <url> # # If <section> is an underscore, that line specifies the title and URL for the # whole manual. _::::Filesystem Hierarchy Standard::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html introduction::1::Introduction::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#introduction purpose::1.1::Purpose::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#purpose conventions::1.2::Conventions::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#conventions thefilesystem::2::The Filesystem::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#thefilesystem therootfilesystem::3::The Root Filesystem::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#theRootFilesystem purpose2::3.1::Purpose::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#purpose2 requirements::3.2::Requirements::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#requirements specificoptions::3.3::Specific Options::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#specificOptions binessentialusercommandbinaries::3.4::/bin : Essential user command binaries (for use by all users)::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#binEssentialUserCommandBinaries purpose3::3.4.1::Purpose::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#purpose3 requirements2::3.4.2::Requirements::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#requirements2 specificoptions2::3.4.3::Specific Options::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#specificOptions2 bootstaticfilesofthebootloader::3.5::/boot : Static files of the boot loader::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#bootStaticFilesOfTheBootLoader purpose4::3.5.1::Purpose::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#purpose4 specificoptions3::3.5.2::Specific Options::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#specificOptions3 devdevicefiles::3.6::/dev : Device files::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#devDeviceFiles purpose5::3.6.1::Purpose::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#purpose5 specificoptions4::3.6.2::Specific Options::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#specificOptions4 etchostspecificsystemconfiguration::3.7::/etc : Host-specific system configuration::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#etcHostspecificSystemConfiguration purpose6::3.7.1::Purpose::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#purpose6 requirements3::3.7.2::Requirements::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#requirements3 specificoptions5::3.7.3::Specific Options::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#specificOptions5 etcoptconfigurationfilesforopt::3.7.4::/etc/opt : Configuration files for /opt::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#etcoptConfigurationFilesForOpt etcx11configurationforthexwindows::3.7.5::/etc/X11 : Configuration for the X Window System (optional)::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#etcx11ConfigurationForTheXWindowS etcsgmlconfigurationfilesforsgmlan::3.7.6::/etc/sgml : Configuration files for SGML (optional)::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#etcsgmlConfigurationFilesForSgmlAn idm236088418512::3.7.7::/etc/xml : Configuration files for XML (optional)::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#idm236088418512 homeuserhomedirectories::3.8::/home : User home directories (optional)::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#homeUserHomeDirectories purpose10::3.8.1::Purpose::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#purpose10 requirements4a::3.8.2::Requirements::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#requirements4a homereferences::3.8.3::Home Directory Specifications and Conventions::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#homeReferences libessentialsharedlibrariesandkern::3.9::/lib : Essential shared libraries and kernel modules::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#libEssentialSharedLibrariesAndKern purpose11::3.9.1::Purpose::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#purpose11 requirements5::3.9.2::Requirements::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#requirements5 specificoptions7::3.9.3::Specific Options::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#specificOptions7 libltqualgtalternateformatessential::3.10::/lib<qual> : Alternate format essential shared libraries (optional)::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#libltqualgtAlternateFormatEssential purpose12::3.10.1::Purpose::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#purpose12 requirements6::3.10.2::Requirements::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#requirements6 mediamountpoint::3.11::/media : Mount point for removable media::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#mediaMountPoint purposemediamountpoint::3.11.1::Purpose::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#purposeMediaMountPoint specificoptionsmediamount::3.11.2::Specific Options::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#specificOptionsMediaMount mntmountpointforatemporarilymount::3.12::/mnt : Mount point for a temporarily mounted filesystem::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#mntMountPointForATemporarilyMount purpose13::3.12.1::Purpose::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#purpose13 optaddonapplicationsoftwarepackages::3.13::/opt : Add-on application software packages::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#optAddonApplicationSoftwarePackages purpose14::3.13.1::Purpose::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#purpose14 requirements7::3.13.2::Requirements::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#requirements7 roothomedirectoryfortherootuser::3.14::/root : Home directory for the root user (optional)::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#rootHomeDirectoryForTheRootUser purpose15::3.14.1::Purpose::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#purpose15 runruntimevariabledata::3.15::/run : Run-time variable data::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#runRuntimeVariableData runpurpose::3.15.1::Purpose::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#runPurpose runrequirements::3.15.2::Requirements::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#runRequirements sbinsystembinaries::3.16::/sbin : System binaries::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#sbinSystemBinaries purpose16::3.16.1::Purpose::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#purpose16 requirements8::3.16.2::Requirements::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#requirements8 specificoptions8::3.16.3::Specific Options::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#specificOptions8 srvdataforservicesprovidedbysystem::3.17::/srv : Data for services provided by this system::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#srvDataForServicesProvidedBySystem purpose16a::3.17.1::Purpose::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#purpose16a tmptemporaryfiles::3.18::/tmp : Temporary files::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#tmpTemporaryFiles purpose17::3.18.1::Purpose::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#purpose17 theusrhierarchy::4::The /usr Hierarchy::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#theUsrHierarchy purpose18::4.1::Purpose::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#purpose18 requirements9::4.2::Requirements::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#requirements9 specificoptions9::4.3::Specific Options::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#specificOptions9 usrbinmostusercommands::4.4::/usr/bin : Most user commands::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#usrbinMostUserCommands purpose20::4.4.1::Purpose::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#purpose20 requirements9a::4.4.2::Requirements::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#requirements9a specificoptions11::4.4.3::Specific Options::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#specificOptions11 usrincludedirectoryforstandardinclu::4.5::/usr/include : Directory for standard include files.::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#usrincludeDirectoryForStandardInclu purpose21::4.5.1::Purpose::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#purpose21 specificoptions12::4.5.2::Specific Options::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#specificOptions12 usrliblibrariesforprogrammingandpa::4.6::/usr/lib : Libraries for programming and packages::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#usrlibLibrariesForProgrammingAndPa purpose22::4.6.1::Purpose::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#purpose22 specificoptions13::4.6.2::Specific Options::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#specificOptions13 usrlibexec::4.7::/usr/libexec : Binaries run by other programs (optional)::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#usrlibexec usrlibexecpurpose::4.7.1::Purpose::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#usrlibexecPurpose usrlibltqualgtalternateformatlibrari::4.8::/usr/lib<qual> : Alternate format libraries (optional)::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#usrlibltqualgtAlternateFormatLibrari purpose23::4.8.1::Purpose::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#purpose23 usrlocallocalhierarchy::4.9::/usr/local : Local hierarchy::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#usrlocalLocalHierarchy purpose24::4.9.1::Purpose::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#purpose24 requirements10::4.9.2::Requirements::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#requirements10 specificoptions14::4.9.3::Specific Options::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#specificOptions14 usrlocalshare1::4.9.4::/usr/local/share : Local architecture-independent hierarchy::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#usrlocalshare1 usrsbinnonessentialstandardsystembi::4.10::/usr/sbin : Non-essential standard system binaries::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#usrsbinNonessentialStandardSystemBi purpose25::4.10.1::Purpose::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#purpose25 requirements10a::4.10.2::Requirements::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#requirements10a usrsharearchitectureindependentdata::4.11::/usr/share : Architecture-independent data::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#usrshareArchitectureindependentData purpose26::4.11.1::Purpose::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#purpose26 requirements11::4.11.2::Requirements::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#requirements11 specificoptions15::4.11.3::Specific Options::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#specificOptions15 usrsharecolorcolormanagement::4.11.4::/usr/share/color : Color management information (optional)::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#usrsharecolorColorManagement usrsharedictwordlists::4.11.5::/usr/share/dict : Word lists (optional)::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#usrsharedictWordLists usrsharemanmanualpages::4.11.6::/usr/share/man : Manual pages::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#usrsharemanManualPages usrsharemiscmiscellaneousarchitecture::4.11.7::/usr/share/misc : Miscellaneous architecture-independent data::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#usrsharemiscMiscellaneousArchitecture usrshareppd::4.11.8::/usr/share/ppd : Printer definitions (optional)::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#usrshareppd usrsharesgmlsgmlandxmldata::4.11.9::/usr/share/sgml : SGML data (optional)::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#usrsharesgmlSgmlAndXmlData idm236087237360::4.11.10::/usr/share/xml : XML data (optional)::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#idm236087237360 usrsrcsourcecode::4.12::/usr/src : Source code (optional)::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#usrsrcSourceCode purpose30::4.12.1::Purpose::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#purpose30 thevarhierarchy::5::The /var Hierarchy::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#theVarHierarchy purpose31::5.1::Purpose::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#purpose31 requirements12::5.2::Requirements::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#requirements12 specificoptions20::5.3::Specific Options::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#specificOptions20 varaccountprocessaccountinglogs::5.4::/var/account : Process accounting logs (optional)::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#varaccountProcessAccountingLogs purpose32::5.4.1::Purpose::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#purpose32 varcacheapplicationcachedata::5.5::/var/cache : Application cache data::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#varcacheApplicationCacheData purpose33::5.5.1::Purpose::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#purpose33 specificoptions21::5.5.2::Specific Options::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#specificOptions21 varcachefontslocallygeneratedfonts::5.5.3::/var/cache/fonts : Locally-generated fonts (optional)::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#varcachefontsLocallygeneratedFonts varcachemanlocallyformattedmanualpag::5.5.4::/var/cache/man : Locally-formatted manual pages (optional)::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#varcachemanLocallyformattedManualPag varcrashsystemcrashdumps::5.6::/var/crash : System crash dumps (optional)::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#varcrashSystemCrashDumps purpose36::5.6.1::Purpose::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#purpose36 vargamesvariablegamedata::5.7::/var/games : Variable game data (optional)::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#vargamesVariableGameData purpose37::5.7.1::Purpose::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#purpose37 varlibvariablestateinformation::5.8::/var/lib : Variable state information::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#varlibVariableStateInformation purpose38::5.8.1::Purpose::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#purpose38 requirements13::5.8.2::Requirements::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#requirements13 specificoptions23::5.8.3::Specific Options::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#specificOptions23 varliblteditorgteditorbackupfilesan::5.8.4::/var/lib/<editor> : Editor backup files and state (optional)::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#varliblteditorgtEditorBackupFilesAn varlibcolor::5.8.5::/var/lib/color : Color management information (optional)::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#varlibcolor varlibhwclockstatedirectoryforhwclo::5.8.6::/var/lib/hwclock : State directory for hwclock (optional)::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#varlibhwclockStateDirectoryForHwclo varlibmiscmiscellaneousvariabledata::5.8.7::/var/lib/misc : Miscellaneous variable data::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#varlibmiscMiscellaneousVariableData varlocklockfiles::5.9::/var/lock : Lock files::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#varlockLockFiles purpose42::5.9.1::Purpose::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#purpose42 varloglogfilesanddirectories::5.10::/var/log : Log files and directories::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#varlogLogFilesAndDirectories purpose43::5.10.1::Purpose::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#purpose43 specificoptions24::5.10.2::Specific Options::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#specificOptions24 varmailusermailboxfiles::5.11::/var/mail : User mailbox files (optional)::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#varmailUserMailboxFiles purpose44::5.11.1::Purpose::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#purpose44 varoptvariabledataforopt::5.12::/var/opt : Variable data for /opt::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#varoptVariableDataForOpt purpose45::5.12.1::Purpose::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#purpose45 varrunruntimevariabledata::5.13::/var/run : Run-time variable data::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#varrunRuntimeVariableData purpose46::5.13.1::Purpose::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#purpose46 requirements14::5.13.2::Requirements::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#requirements14 varspoolapplicationspooldata::5.14::/var/spool : Application spool data::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#varspoolApplicationSpoolData purpose47::5.14.1::Purpose::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#purpose47 specificoptions25::5.14.2::Specific Options::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#specificOptions25 varspoollpdlineprinterdaemonprintqu::5.14.3::/var/spool/lpd : Line-printer daemon print queues (optional)::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#varspoollpdLineprinterDaemonPrintQu varspoolrwhorwhodfiles::5.14.4::/var/spool/rwho : Rwhod files (optional)::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#varspoolrwhoRwhodFiles vartmptemporaryfilespreservedbetwee::5.15::/var/tmp : Temporary files preserved between system reboots::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#vartmpTemporaryFilesPreservedBetwee purpose50::5.15.1::Purpose::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#purpose50 varypnetworkinformationservice::5.16::/var/yp : Network Information Service (NIS) database files (optional)::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#varypNetworkInformationService purpose51::5.16.1::Purpose::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#purpose51 operatingsystemspecificannex::6::Operating System Specific Annex::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#operatingSystemSpecificAnnex linux::6.1::Linux::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#linux rootdirectory::6.1.1::/ : Root directory::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#rootDirectory binessentialusercommandbinaries2::6.1.2::/bin : Essential user command binaries (for use by all users)::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#binEssentialUserCommandBinaries2 devdevicesandspecialfiles::6.1.3::/dev : Devices and special files::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#devDevicesAndSpecialFiles etchostspecificsystemconfiguration2::6.1.4::/etc : Host-specific system configuration::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#etcHostspecificSystemConfiguration2 prockernelandprocessinformationvir::6.1.5::/proc : Kernel and process information virtual filesystem::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#procKernelAndProcessInformationVir sbinessentialsystembinaries::6.1.6::/sbin : Essential system binaries::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#sbinEssentialSystemBinaries syskernelandsysteminformation::6.1.7::/sys : Kernel and system information virtual filesystem::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#sysKernelAndSystemInformation usrincludeheaderfilesincludedbycp::6.1.8::/usr/include : Header files included by C programs::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#usrincludeHeaderFilesIncludedByCP usrsrcsourcecode2::6.1.9::/usr/src : Source code::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#usrsrcSourceCode2 varspoolcroncronandatjobs::6.1.10::/var/spool/cron : cron and at jobs::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#varspoolcronCronAndAtJobs appendix::7::Appendix::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#appendix thefhsmailinglist::7.1::The FHS mailing list::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#theFhsMailingList backgroundofthefhs::7.2::Background of the FHS::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#backgroundOfTheFhs generalguidelines::7.3::General Guidelines::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#generalGuidelines scope::7.4::Scope::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#scope acknowledgments::7.5::Acknowledgments::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#acknowledgments contributors::7.6::Contributors::https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#contributors