1.\" Copyright (c) 1990, 1993 2.\" The Regents of the University of California. All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. 9.\" 2. Redistributions in binary form must reproduce the above copyright 10.\" notice, this list of conditions and the following disclaimer in the 11.\" documentation and/or other materials provided with the distribution. 12.\" 3. Neither the name of the University nor the names of its contributors 13.\" may be used to endorse or promote products derived from this software 14.\" without specific prior written permission. 15.\" 16.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 17.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 20.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26.\" SUCH DAMAGE. 27.\" 28.\" @(#)hier.7 8.1 (Berkeley) 6/5/93 29.\" $FreeBSD$ 30.\" 31.Dd April 6, 2017 32.Dt HIER 7 33.Os 34.Sh NAME 35.Nm hier 36.Nd layout of file systems 37.Sh DESCRIPTION 38A sketch of the file system hierarchy. 39.Bl -tag -width "/libexec/" 40.It Pa / 41root directory of the file system 42.It Pa /bin/ 43user utilities fundamental to both single-user and multi-user environments 44.It Pa /boot/ 45programs and configuration files used during operating system bootstrap 46.Pp 47.Bl -tag -width "defaults/" -compact 48.It Pa defaults/ 49default bootstrapping configuration files; see 50.Xr loader.conf 5 51.It Pa dtb/ 52Compiled flattened device tree (FDT) files; see 53.Xr fdt 4 54and 55.Xr dtc 1 56.It Pa firmware/ 57loadable kernel modules containing binary firmware for hardware that needs 58firmware downloaded to it to function 59.It Pa kernel/ 60pure kernel executable (the operating system loaded into memory 61at boot time) and kernel modules 62.It Pa modules/ 63third-party loadable kernel modules; 64see 65.Xr kldstat 8 66.It Pa zfs/ 67.Xr zfs 8 68zpool cache files 69.El 70.It Pa /cdrom/ 71default mount point for CD-ROM drives 72.It Pa /compat/ 73normally a link to 74.Pa /usr/compat . 75If not, then the 76.Pa /usr/compat 77comments apply 78.It Pa /dev/ 79device special files managed by 80.Xr devfs 5 81.Pp 82.Bl -tag -width "net/" -compact 83.It Pa fd/ 84file descriptor files; 85see 86.Xr \&fd 4 87.El 88.It Pa /etc/ 89system configuration files and scripts 90.Pp 91.Bl -tag -width "bluetooth/" -compact 92.It Pa defaults/ 93default system configuration files; 94see 95.Xr rc 8 96.It Pa bluetooth/ 97bluetooth configuration files 98.It Pa localtime 99local timezone information; 100see 101.Xr ctime 3 102.It Pa mail/ 103Sendmail control files 104.It Pa mtree/ 105mtree configuration files; 106see 107.Xr mtree 8 108.It Pa pam.d/ 109configuration files for the Pluggable Authentication Modules (PAM) 110library 111.It Pa periodic/ 112scripts that are run daily, weekly, and monthly, via 113.Xr cron 8 ; 114see 115.Xr periodic 8 116.It Pa rc.d/ 117system and daemon startup/control scripts; 118see 119.Xr rc 8 120.It Pa security/ 121OpenBSM audit configuration files; 122see 123.Xr audit 8 124.It Pa ppp/ 125ppp configuration files; 126see 127.Xr ppp 8 128.It Pa ssh/ 129OpenSSH configuration files; 130see 131.Xr ssh 1 132.It Pa ssl/ 133OpenSSL configuration files 134.El 135.It Pa /lib/ 136critical system libraries needed for binaries in 137.Pa /bin 138and 139.Pa /sbin 140.Pp 141.Bl -tag -width "geom/" -compact 142.It Pa geom/ 143class-specific libraries for the 144.Xr geom 8 145utility 146.El 147.It Pa /libexec/ 148critical system utilities needed for binaries in 149.Pa /bin 150and 151.Pa /sbin 152.It Pa /media/ 153contains subdirectories to be used as mount points 154for removable media such as CDs, USB drives, and 155floppy disks 156.It Pa /mnt/ 157empty directory commonly used by 158system administrators as a temporary mount point 159.It Pa /net/ 160automounted NFS shares; 161see 162.Xr auto_master 5 163.It Pa /proc/ 164process file system; 165see 166.Xr procfs 5 167.It Pa /rescue/ 168statically linked programs for emergency recovery; 169see 170.Xr rescue 8 171.It Pa /root/ 172root's HOME directory 173.It Pa /sbin/ 174system programs and administration utilities 175fundamental to both single-user and multi-user environments 176.It Pa /tmp/ 177temporary files that are not guaranteed to persist across system reboots 178.It Pa /usr/ 179contains the majority of user utilities and applications 180.Pp 181.Bl -tag -width "libdata/" -compact 182.It Pa bin/ 183common utilities, programming tools, and applications 184.It Pa compat/ 185files needed to support binary compatibility with other operating systems, 186such as Linux 187.It Pa include/ 188standard C include files 189.Pp 190.Bl -tag -width "kerberos5/" -compact 191.It Pa arpa/ 192C include files for Internet service protocols 193.It Pa bsnmp/ 194C include files for the SNMP daemon 195.It Pa c++/ 196C++ include files 197.It Pa cam/ 198C include files for the Common Access Methods Layer 199.Bl -tag -width "kerberos5/" -compact 200.It Pa scsi/ 201SCSI device on top of CAM 202.El 203.It Pa dev/ 204C include files for programming various 205.Fx 206devices 207.Bl -tag -width "kerberos5/" -compact 208.It Pa ic/ 209various header files describing driver- and bus-independent 210hardware circuits 211.It Pa ofw/ 212Open Firmware support 213.It Pa pbio/ 2148255 PPI cards; 215see 216.Xr pbio 4 217.It Pa ppbus/ 218parallel port bus; 219see 220.Xr ppbus 4 221.It Pa usb/ 222USB subsystem 223.It Pa utopia/ 224physical chip driver for ATM interfaces; 225see 226.Xr utopia 4 227.It Pa wi/ 228.Xr wi 4 229WaveLAN driver 230.El 231.It Pa fs/ 232.Bl -tag -width "kerberos5/" -compact 233.It Pa fdescfs/ 234per-process file descriptors file system 235.It Pa msdosfs/ 236MS-DOS file system 237.It Pa nfs/ 238C include files for NFS (Network File System) version 2, 3 and 4 239.It Pa nullfs/ 240loopback file system 241.It Pa procfs/ 242process file system 243.It Pa smbfs/ 244SMB/CIFS file system 245.It Pa udf/ 246UDF file system 247.It Pa unionfs 248union file system 249.El 250.It Pa geom/ 251GEOM framework 252.Bl -tag -width "kerberos5/" -compact 253.It Pa concat/ 254CONCAT GEOM class 255.It Pa gate/ 256GATE GEOM class 257.It Pa mirror/ 258MIRROR GEOM class 259.It Pa nop/ 260NOP GEOM class 261.It Pa raid3/ 262RAID3 GEOM class 263.It Pa stripe/ 264STRIPE GEOM class 265.El 266.Pp 267.It Pa libmilter/ 268C include files for libmilter, 269the 270.Xr sendmail 8 271mail filter API 272.It Pa machine/ 273machine-specific C include files 274.It Pa net/ 275miscellaneous network C include files 276.Bl -tag -width "altq/" -compact 277.It Pa altq/ 278C include files for alternate queueing 279.El 280.It Pa net80211/ 281C include files for 802.11 wireless networking; 282see 283.Xr net80211 4 284.It Pa netinet/ 285C include files for Internet standard protocols; 286see 287.Xr inet 4 288.It Pa netinet6/ 289C include files for Internet protocol version 6; 290see 291.Xr inet6 4 292.It Pa netipsec/ 293kernel key-management service; 294see 295.Xr ipsec 4 296.It Pa netnatm/ 297NATM include files; 298see 299.Xr natm 4 300.Bl -tag -width "kerberos5/" -compact 301.It Pa api/ 302include files for the signalling API 303.It Pa msg/ 304include files that describe signalling messages and 305declare associated functions 306.It Pa saal/ 307include files for the signalling AAL layer 308.It Pa sig/ 309include files for the UNI signalling protocol 310.El 311.It Pa netsmb/ 312SMB/CIFS requester 313.It Pa nfs/ 314C include files for NFS (Network File System) version 2 and 3 (legacy) 315.It Pa openssl/ 316OpenSSL (Cryptography/SSL toolkit) headers 317.It Pa protocols/ 318C include files for Berkeley service protocols 319.It Pa readline/ 320get a line from a user, with editing; 321see 322.Xr readline 3 323.It Pa rpc/ 324remote procedure calls; 325see 326.Xr rpc 3 327.It Pa rpcsvc/ 328definition of RPC service structures; see 329.Xr rpc 3 330.It Pa security/ 331PAM; see 332.Xr pam 8 333.It Pa sys/ 334system C include files (kernel data structures) 335.\" .It Pa tcl/ 336.\" Tcl language; 337.\" see 338.\" .Xr Tcl n 339.\" .Bl -tag -width "kerberos5/" -compact 340.\" .It Pa generic/ 341.\" ??? 342.\" .It Pa unix/ 343.\" ??? 344.\" .El 345.It Pa ufs/ 346C include files for UFS (The U-word File System) 347.Bl -tag -width "kerberos5/" -compact 348.It Pa ffs/ 349Fast file system 350.It Pa ufs/ 351UFS file system 352.El 353.It Pa vm/ 354virtual memory; 355see 356.Xr vmstat 8 357.El 358.Pp 359.It Pa lib/ 360shared and archive 361.Xr ar 1 Ns -type 362libraries 363.Bl -tag -width Fl -compact 364.It Pa aout/ 365a.out archive libraries 366.It Pa compat/ 367shared libraries for compatibility 368.Bl -tag -width Fl -compact 369.It Pa aout/ 370a.out backward compatibility libraries 371.El 372.It Pa debug/ 373standalone debug data for the kernel and base system libraries and binaries 374.It Pa dtrace/ 375DTrace library scripts 376.It Pa engines/ 377OpenSSL (Cryptography/SSL toolkit) dynamically loadable engines 378.El 379.Pp 380.It Pa libdata/ 381miscellaneous utility data files 382.Bl -tag -width Fl -compact 383.It Pa gcc/ 384.Xr gcc 1 385configuration data 386.It Pa ldscripts/ 387linker scripts; 388see 389.Xr ld 1 390.It Pa lint/ 391various prebuilt lint libraries; 392see 393.Xr lint 1 394.El 395.Pp 396.It Pa libexec/ 397system daemons & system utilities (executed by other programs) 398.Bl -tag -width Fl -compact 399.It Pa aout/ 400utilities to manipulate a.out executables 401.It Pa elf/ 402utilities to manipulate ELF executables 403.It Pa lpr/ 404utilities and filters for LP print system; 405see 406.Xr lpr 1 407.It Pa sendmail/ 408the 409.Xr sendmail 8 410binary; 411see 412.Xr mailwrapper 8 413.It Pa sm.bin/ 414restricted shell for 415.Xr sendmail 8 ; 416see 417.Xr smrsh 8 418.El 419.Pp 420.It Pa local/ 421local executables, libraries, etc. 422Also used as the default destination for the 423.Xr ports 7 424framework. 425Within 426.Pa local/ , 427the general layout sketched out by 428.Nm 429for 430.Pa /usr 431should be used. 432Exceptions are the 433.Pa man 434directory 435.Po directly under 436.Pa local/ 437rather than under 438.Pa local/share/ Ns Pc , 439ports documentation 440.Po in 441.Pa share/doc/<port>/ Ns Pc , 442and 443.Pa /usr/local/etc 444.Po mimics 445.Pa /etc Ns Pc . 446.It Pa obj/ 447architecture-specific target tree produced by building the 448.Pa /usr/src 449tree 450.It Pa ports/ 451.Xr ports 7 , 452the 453.Fx 454ports collection. 455.It Pa sbin/ 456system daemons & system utilities (executed by users) 457.It Pa share/ 458architecture-independent files 459.Pp 460.Bl -tag -width "calendar/" -compact 461.It Pa calendar/ 462a variety of pre-fab calendar files; 463see 464.Xr calendar 1 465.It Pa dict/ 466word lists; 467see 468.Xr look 1 469.Pp 470.Bl -tag -width Fl -compact 471.It Pa freebsd 472.Fx Ns -specific 473terms, proper names, and jargon 474.It Pa web2 475words from Webster's 2nd International 476.El 477.Pp 478.It Pa doc/ 479miscellaneous documentation; 480source for most of the printed 481.Bx 482manuals (available 483from the 484.Tn USENIX 485association) 486.Bl -tag -width Fl -compact 487.It Pa FAQ/ 488Frequently Asked Questions 489.It Pa IPv6/ 490implementation notes for IPv6 491.It Pa bind/ 492documents pertaining to BIND (the Berkeley Internet Name Domain) 493.It Pa es/ 494Spanish translations of documents in /usr/share/doc 495.It Pa handbook/ 496.Fx 497Handbook 498.It Pa ja/ 499Japanese translations of documents in /usr/share/doc 500.It Pa legal/ 501License files for vendor supplied firmwares 502.It Pa ncurses/ 503HTML documents pertaining to ncurses; 504see 505.Xr ncurses 3 506.It Pa ntp/ 507HTML documents pertaining to the Network Time Protocol 508.It Pa papers/ 509UNIX Papers 510.It Pa psd/ 511UNIX Programmer's Supplementary Documents 512.It Pa ru/ 513Russian translations of documents in /usr/share/doc 514.It Pa smm/ 515UNIX System Manager's Manual 516.It Pa tutorials/ 517.Fx 518tutorials 519.It Pa usd/ 520UNIX User's Supplementary Documents 521.It Pa zh/ 522Chinese translations of documents in /usr/share/doc 523.El 524.Pp 525.It Pa examples/ 526various examples for users and programmers 527.It Pa firmware/ 528firmware images loaded by userland programs 529.It Pa games/ 530ASCII text files used by various games 531.It Pa groff_font/ 532device description file for device name 533.It Pa keys/ 534known trusted and revoked keys. 535.Bl -tag -width "pkg/" -compact 536.It Pa pkg/ 537fingerprints for 538.Xr pkg 7 539and 540.Xr pkg 8 541.El 542.Pp 543.It Pa locale/ 544localization files; 545see 546.Xr setlocale 3 547.It Pa man/ 548manual pages 549.It Pa me/ 550macros for use with the me macro package; 551see 552.Xr me 7 553.It Pa misc/ 554miscellaneous system-wide ASCII text files 555.Bl -tag -width Fl -compact 556.It Pa fonts/ 557??? 558.It Pa termcap 559terminal characteristics database; 560see 561.Xr termcap 5 562.El 563.It Pa mk/ 564templates for make; 565see 566.Xr make 1 567.It Pa nls/ 568national language support files; 569see 570.Xr mklocale 1 571.It Pa security/ 572data files for security policies such as 573.Xr mac_lomac 4 574.It Pa sendmail/ 575.Xr sendmail 8 576configuration files 577.It Pa skel/ 578example 579.Pa .\& 580(dot) files for new accounts 581.It Pa snmp/ 582MIBs, example files and tree definitions for the SNMP daemon. 583.Bl -tag -width Fl -compact 584.It Pa defs/ 585tree definition files for use with 586.Xr gensnmptree 1 587.It Pa mibs/ 588MIB files 589.El 590.It Pa syscons/ 591files used by syscons; 592see 593.Xr syscons 4 594.Bl -tag -width "scrnmaps/" -compact 595.It Pa fonts/ 596console fonts; 597see 598.Xr vidcontrol 1 599and 600.Xr vidfont 1 601.It Pa keymaps/ 602console keyboard maps; 603see 604.Xr kbdcontrol 1 605and 606.Xr kbdmap 1 607.It Pa scrnmaps/ 608console screen maps 609.El 610.It Pa tabset/ 611tab description files for a variety of terminals; used in 612the termcap file; 613see 614.Xr termcap 5 615.It Pa tmac/ 616text processing macros; 617see 618.Xr nroff 1 619and 620.Xr troff 1 621.It Pa vi/ 622localization support and utilities for 623.Xr vi 1 624.It Pa vt/ 625files used by vt; 626see 627.Xr vt 4 628.Bl -tag -width "scrnmaps/" -compact 629.It Pa fonts/ 630console fonts; 631see 632.Xr vidcontrol 1 633and 634.Xr vidfont 1 635.It Pa keymaps/ 636console keyboard maps; 637see 638.Xr kbdcontrol 1 639and 640.Xr kbdmap 1 641.\" .It Pa scrnmaps/ 642.\" console screen maps 643.El 644.It Pa zoneinfo/ 645timezone configuration information; 646see 647.Xr tzfile 5 648.El 649.It Pa src/ 650.Bx , 651third-party, and/or local source files 652.Pp 653.Bl -tag -width "kerberos5/" -compact 654.It Pa bin/ 655source code for files in /bin 656.It Pa cddl/ 657utilities covered by the Common Development and Distribution License 658.It Pa contrib/ 659source code for contributed software 660.It Pa crypto/ 661source code for contributed cryptography software 662.It Pa etc/ 663source code for files in 664.Pa /etc 665.It Pa gnu/ 666utilities covered by the GNU General Public License 667.It Pa include/ 668source code for files in 669.Pa /usr/include 670.It Pa kerberos5/ 671build infrastructure for kerberos version 5 672.It Pa lib/ 673source code for files in 674.Pa /lib 675and 676.Pa /usr/lib 677.It Pa libexec/ 678source code for files in 679.Pa /usr/libexec 680.It Pa release/ 681files required to produce a 682.Fx 683release 684.It Pa rescue/ 685source code for files in 686.Pa /rescue 687.It Pa sbin/ 688source code for files in 689.Pa /sbin 690.It Pa secure/ 691build directory for files in 692.Pa /usr/src/crypto 693.It Pa share/ 694source for files in 695.Pa /usr/share 696.It Pa sys/ 697kernel source code 698.Bl -tag -width ".Pa opencrypto/" -compact 699.It Pa amd64/ 700AMD64 architecture support 701.It Pa arm/ 702ARM architecture support 703.It Pa arm64/ 704ARMv8 architecture support 705.It Pa boot/ 706bootloader code 707.It Pa cam/ 708.Xr cam 4 709and 710.Xr ctl 4 711.It Pa cddl/ 712CDDL-licensed optional sources, including ZFS 713and DTrace 714.It Pa ddb/ 715.Xr ddb 4 716.It Pa fs/ 717most filesystems 718.It Pa dev/ 719device drivers 720.It Pa geom/ 721.Xr geom 4 722.It Pa i386/ 723i386 (32 bit) architecture support 724.It Pa kern/ 725main part of the kernel 726.It Pa mips/ 727MIPS architecture support 728.It Pa net80211/ 729.Xr net80211 4 730.It Pa netgraph/ 731.Xr netgraph 4 732.It Pa netinet/ 733.Xr inet 4 734.It Pa netinet6/ 735.Xr inet6 4 736.It Pa netipsec/ 737.Xr ipsec 4 738.It Pa netpfil/ 739.Xr ipfw 4 740and 741.Xr pf 4 742.It Pa opencrypto/ 743.Xr crypto 7 744.It Pa powerpc/ 745PowerPC/POWER architecture support 746.It Pa riscv/ 747RISC-V architecture support 748.It Pa security/ 749.Xr audit 4 750and 751.Xr mac 4 752.It Pa sparc64/ 753SPARC64 architecture support 754.It Pa sys/ 755kernel headers 756.It Pa ufs/ 757Unix File System 758.It Pa x86/ 759code shared by AMD64 and i386 architectures 760.El 761.It Pa targets/ 762support for experimental DIRDEPS_BUILD 763.It Pa tests/ 764source code for files in 765.Pa /usr/tests 766.It Pa tools/ 767tools used for maintenance and testing of 768.Fx 769.It Pa usr.bin/ 770source code for files in 771.Pa /usr/bin 772.It Pa usr.sbin/ 773source code for files in 774.Pa /usr/sbin 775.El 776.Pp 777.It Pa tests/ 778The 779.Fx 780test suite. 781See 782.Xr tests 7 783for more details. 784.El 785.It Pa /var/ 786multi-purpose log, temporary, transient, and spool files 787.Pp 788.Bl -tag -width "preserve/" -compact 789.It Pa account/ 790system accounting files 791.Pp 792.Bl -tag -width Fl -compact 793.It Pa acct 794execution accounting file; 795see 796.Xr acct 5 797.El 798.Pp 799.It Pa at/ 800timed command scheduling files; 801see 802.Xr \&at 1 803.Bl -tag -width "preserve/" -compact 804.It Pa jobs/ 805directory containing job files 806.It Pa spool/ 807directory containing output spool files 808.El 809.Pp 810.It Pa backups/ 811miscellaneous backup files 812.It Pa cache/ 813miscellaneous cached files 814.Bl -tag -width "pkg/" -compact 815.It Pa pkg/ 816cached packages for 817.Xr pkg 8 818.El 819.Pp 820.It Pa crash/ 821default directory to store kernel crash dumps; see 822.Xr crash 8 823and 824.Xr savecore 8 825.It Pa cron/ 826files used by cron; 827see 828.Xr cron 8 829.Bl -tag -width "preserve/" -compact 830.It Pa tabs/ 831crontab files; 832see 833.Xr crontab 5 834.El 835.Pp 836.It Pa db/ 837miscellaneous automatically generated system-specific database files 838.It Pa empty/ 839empty directory for use by programs that need a specifically empty directory. 840Used for instance by 841.Xr sshd 8 842for privilege separation. 843.It Pa games/ 844miscellaneous game status and score files 845.It Pa heimdal/ 846kerberos server databases; see 847.Xr kdc 8 848.It Pa log/ 849miscellaneous system log files 850.Pp 851.Bl -tag -width Fl -compact 852.It Pa utx.lastlogin 853last login log; 854see 855.Xr getutxent 3 856.It Pa utx.log 857login/logout log; 858see 859.Xr getutxent 3 860.El 861.Pp 862.It Pa mail/ 863user mailbox files 864.It Pa msgs/ 865system messages database; 866see 867.Xr msgs 1 868.It Pa preserve/ 869temporary home of files preserved after an accidental death 870of an editor; 871see 872.Xr \&ex 1 873.It Pa quotas/ 874file system quota information files 875.It Pa run/ 876system information files describing various info about 877system since it was booted 878.Pp 879.Bl -tag -width Fl -compact 880.It Pa ppp/ 881writable by the 882.Dq network 883group for command connection sockets; see 884.Xr ppp 8 885.It Pa utx.active 886database of current users; 887see 888.Xr getutxent 3 889.El 890.Pp 891.It Pa rwho/ 892rwho data files; 893see 894.Xr rwhod 8 , 895.Xr rwho 1 , 896and 897.Xr ruptime 1 898.It Pa spool/ 899miscellaneous printer and mail system spooling directories 900.Pp 901.Bl -tag -width Fl -compact 902.It Pa clientmqueue/ 903undelivered submission mail queue; 904see 905.Xr sendmail 8 906.It Pa ftp/ 907commonly ~ftp; the anonymous ftp root directory 908.It Pa mqueue/ 909undelivered mail queue; 910see 911.Xr sendmail 8 912.It Pa output/ 913line printer spooling directories 914.El 915.Pp 916.It Pa tmp/ 917temporary files that are kept between system reboots 918.Bl -tag -width Fl -compact 919.It Pa vi.recover/ 920the directory where recovery files are stored 921.El 922.It Pa yp/ 923the NIS maps 924.El 925.El 926.Sh NOTES 927This manual page documents the default 928.Fx 929file system layout, but 930the actual hierarchy on a given system is defined at the system 931administrator's discretion. 932A well-maintained installation will include a customized version of 933this document. 934.Sh SEE ALSO 935.Xr apropos 1 , 936.Xr find 1 , 937.Xr finger 1 , 938.Xr grep 1 , 939.Xr ls 1 , 940.Xr whatis 1 , 941.Xr whereis 1 , 942.Xr which 1 , 943.Xr fd 4 , 944.Xr devfs 5 , 945.Xr fsck 8 946.Sh HISTORY 947A 948.Nm 949manual page appeared in 950.At v7 . 951