1.\" $NetBSD: hier.7,v 1.85 2009/04/09 03:51:05 joerg Exp $ 2.\" 3.\" Copyright (c) 1990, 1993, 1994 4.\" The Regents of the University of California. All rights reserved. 5.\" 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that the following conditions 8.\" are met: 9.\" 1. Redistributions of source code must retain the above copyright 10.\" notice, this list of conditions and the following disclaimer. 11.\" 2. Redistributions in binary form must reproduce the above copyright 12.\" notice, this list of conditions and the following disclaimer in the 13.\" documentation and/or other materials provided with the distribution. 14.\" 3. Neither the name of the University nor the names of its contributors 15.\" may be used to endorse or promote products derived from this software 16.\" without specific prior written permission. 17.\" 18.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 19.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 22.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28.\" SUCH DAMAGE. 29.\" 30.\" @(#)hier.7 8.5 (Berkeley) 6/1/94 31.\" 32.Dd January 13, 2009 33.Dt HIER 7 34.Os 35.Sh NAME 36.Nm hier 37.Nd layout of filesystems 38.Sh DESCRIPTION 39An outline of the filesystem hierarchy. 40.Pp 41Naming is very important. 42The 43.Ux 44System relies on filename conventions for much of its power as a system. 45The following file system layout describes generally where things are 46and what they are, with references to other man pages for more detailed 47documentation. 48.Pp 49Not all files will be in every system. 50.Pp 51.Bl -tag -width "/altroot/" 52.It Sy \&/ 53root directory of the system 54.It Sy /COPYRIGHT 55system copyright notice, most often put on 56.Tn CD-ROM 57distributions. 58.It Sy "/[a-z]/" 59user filesystems 60.It Sy /altroot/ 61alternate root filesystem, in case of disaster 62.\" .It Sy /amd/ 63.\" home directories mount point; see 64.\" .Xr amd 8 65.It Sy /bin/ 66utilities used in both single and multi-user environments 67.It Sy /boot* 68second-stage boot loader(s) for some platforms; see 69.Xr installboot 8 70.It Sy /cdrom/ 71empty directory commonly used by 72system administrators as a temporary mount point for CD devices 73for ISO-9660 file systems 74.It Sy /dev/ 75block, character and other special device files 76.Pp 77.Bl -tag -width "MAKEDEV" -compact 78.It Sy MAKEDEV 79script for creating device files; 80see 81.Xr makedev 8 82.It Sy console 83the computer's console device 84.It Sy drum 85system swap space; see 86.Xr drum 4 87.It Sy fd/ 88file descriptor files; 89see 90.Xr fd 4 91.It Sy klog 92kernel logging device; see 93.Xr syslog 3 94.It Sy kmem 95kernel virtual memory device; see 96.Xr mem 4 97.It Sy log 98.Ux 99domain datagram log socket; see 100.Xr syslogd 8 101.It Sy mem 102kernel physical memory device; see 103.Xr mem 4 104.It Sy null 105the null device; see 106.Xr null 4 107.It Sy pts/ 108mount point for the pseudo-terminal device file system; see 109.Xr mount_ptyfs 8 110.It Sy stderr 111.It Sy stdin 112.It Sy stdout 113file descriptor files; 114see 115.Xr fd 4 116.It Sy tty 117process' controlling terminal device; see 118.Xr tty 4 119.It Sy zero 120the zero device; see 121.Xr zero 4 122.El 123.\" .It Sy /dump/ 124.\" online 125.\" .Xr dump 8 126.\" repository 127.It Sy /etc/ 128system configuration files and scripts 129.Pp 130.Bl -tag -width "master.passwd" -compact 131.It Sy amd* 132configuration files for 133.Xr amd 8 134.It Sy changelist 135files backed up by the security script 136.It Sy crontab 137schedule used by the 138.Xr cron 8 139daemon 140.It Sy csh.cshrc 141.It Sy csh.login 142.It Sy csh.logout 143system-wide scripts for 144.Xr csh 1 145.It Sy daily 146script run each day by 147.Xr cron 8 148.It Sy daily.conf 149configuration file for 150.Sy daily ; 151see 152.Xr daily.conf 5 153.It Sy defaults/ 154default configuration files read by various 155.Pa /etc/*.conf 156files 157.It Sy disktab 158disk description file, see 159.Xr disktab 5 160.It Sy dm.conf 161dungeon master configuration; see 162.Xr dm.conf 5 163.It Sy dumpdates 164dump history; see 165.Xr dump 8 166.It Sy exports 167filesystem export information; see 168.Xr mountd 8 169.It Sy fstab 170filesystem information; see 171.Xr fstab 5 172and 173.Xr mount 8 174.It Sy ftpusers 175users denied 176.Xr ftp 1 177access; see 178.Xr ftpd 8 179.It Sy ftpwelcome 180.Xr ftp 1 181initial message; see 182.Xr ftpd 8 183.It Sy gettytab 184terminal configuration database; see 185.Xr gettytab 5 186.It Sy group 187group permissions file; see 188.Xr group 5 189.It Sy hosts 190host name database backup for 191.Xr named 8 ; 192see 193.Xr hosts 5 194.It Sy hosts.equiv 195trusted machines with equivalent user ID's 196.It Sy hosts.lpd 197trusted machines with printing privileges 198.It Sy inetd.conf 199Internet server configuration file; see 200.Xr inetd 8 201.It Sy kerberosV/ 202configuration files for the kerberos version V; 203see 204.Xr kerberos 8 205.It Sy localtime 206local timezone information; 207see 208.Xr ctime 3 209.It Sy mail/ 210configuration files for 211.Xr sendmail 8 212.Pp 213.Bl -tag -width "sendmail.*" -compact 214.It Sy aliases* 215name alias files 216.It Sy sendmail.* 217.Xr sendmail 8 218configuration information 219.El 220.It Sy mail.rc 221system-wide initialization script for 222.Xr mail 1 223.It Sy man.conf 224configuration file for 225.Xr man 1 ; 226see 227.Xr man.conf 5 228.It Sy master.passwd 229Main password file, readable only by root; see 230.Xr passwd 5 231.It Sy mk.conf 232optional file containing 233.Xr make 1 234variables, read by pkgsrc and the system sources. 235.It Sy monthly 236script run each month by 237.Xr cron 8 238.It Sy monthly.conf 239configuration file for 240.Sy monthly ; 241see 242.Xr monthly.conf 5 243.It Sy motd 244system message of the day 245.It Sy mtree/ 246mtree configuration files; 247see 248.Xr mtree 8 249.It Sy named.* 250.It Sy namedb/ 251named configuration files and databases; 252see 253.Xr named 8 254.It Sy netgroup 255network groups; see 256.Xr netgroup 5 257.It Sy netstart 258network startup script 259.It Sy networks 260network name data base; see 261.Xr networks 5 262.It Sy passwd 263World readable password file generated from master.passwd; see 264.Xr passwd 5 , 265.Xr pwd_mkdb 8 266.It Sy phones 267remote host phone number data base; see 268.Xr phones 5 269.It Sy printcap 270system printer configuration; see 271.Xr printcap 5 272.It Sy protocols 273protocol name database; see 274.Xr protocols 5 275.It Sy pwd.db 276database form of passwd file; see 277.Xr pwd_mkdb 8 278.It Sy rc 279master system startup script invoked by 280.Xr init 8 ; 281see 282.Xr rc 8 283.It Sy rc.conf 284configuration file for system startup and shutdown scripts; see 285.Xr rc.conf 5 286.It Sy rc.d/ 287directory containing per-subsystem startup and shutdown scripts; see 288.Xr rc 8 289.It Sy rc.local 290locally editable system startup script 291.It Sy rc.shutdown 292master system shutdown script invoked by 293.Xr shutdown 8 ; 294see 295.Xr rc 8 296.It Sy remote 297remote host description file; see 298.Xr remote 5 299.It Sy security 300daily (in)security script run by 301.Xr cron 8 302.It Sy security.conf 303configuration file for 304.Sy security ; 305see 306.Xr security.conf 5 307.It Sy services 308service name data base; see 309.Xr services 5 310.It Sy shells 311list of permitted shells; see 312.Xr shells 5 313.It Sy sliphome/ 314.Tn SLIP 315login/logout scripts; see 316.Xr sliplogin 8 317.It Sy spwd.db 318database form of master.passwd file; see 319.Xr pwd_mkdb 8 320.It Sy syslog.conf 321.Xr syslogd 8 322configuration file; see 323.Xr syslog.conf 5 324.It Sy termcap 325terminal type database; see 326.Xr termcap 3 327.It Sy ttys 328terminal initialization information; see 329.Xr ttys 5 330.It Sy uucp/ 331UUCP configuration files; see 332.Xr uucp 1 333and 334.Xr uucico 8 . 335.It Sy weekly 336script run each week by 337.Xr cron 8 338.It Sy weekly.conf 339configuration file for 340.Sy weekly ; 341see 342.Xr weekly.conf 5 343.El 344.It Sy /home/ 345mount point for the automounter; see 346.Xr amd 8 347.It Sy /kern/ 348mount point for the kern file system; see 349.Xr mount_kernfs 8 350.It Sy /lib/ 351dynamic linked libraries used by dynamic linked programs 352(such as those in 353.Pa /bin/ 354and 355.Pa /sbin/ ) 356that cannot rely upon 357.Pa /usr/lib/ 358being available. 359.It Sy /libexec/ 360system utilities (such as the dynamic linker) required by programs 361and libraries that cannot rely upon 362.Pa /usr/libexec/ 363being available. 364.It Sy /mnt/ 365empty directory commonly used by 366system administrators as a temporary mount point 367.It Sy /netbsd 368pure kernel executable (the operating system loaded into memory 369at boot time). 370.It Sy /proc/ 371mount point for the process file system; see 372.Xr mount_procfs 8 373.It Sy /rescue/ 374statically linked rescue tools, for use in system recovery 375.It Sy /root/ 376home directory for the super-user 377.Pp 378.Bl -tag -width ".profile" -compact 379.It Sy \&.cshrc 380super-user start-up file 381.It Sy \&.login 382super-user start-up file 383.It Sy \&.profile 384super-user start-up file 385.It Sy \&.rhosts 386super-user id mapping between machines 387.El 388.It Sy /sbin/ 389system programs and administration utilities 390used in both single-user and multi-user environments 391.It Sy /stand/ 392programs used in a standalone environment 393.It Sy /tmp/ 394temporary files, usually a 395.Xr mfs 8 396memory-based filesystem (the contents of 397.Pa /tmp 398are usually 399.Em not 400preserved across a system reboot) 401.It Sy /usr/ 402contains the majority of the system utilities and files 403.Pp 404.Bl -tag -width "libdata/" -compact 405.It Sy X11R6/ 406X11 files 407.Pp 408.Bl -tag -width "include/" -compact 409.It Sy bin/ 410X11 binaries 411.It Sy include/ 412X11 include files 413.It Sy lib/ 414X11 libraries 415.El 416.Pp 417.It Sy bin/ 418common utilities, programming tools, and applications 419.It Sy games/ 420the important stuff 421.It Sy include/ 422standard C include files 423.Pp 424.Bl -tag -width "protocols/" -compact 425.It Sy arpa/ 426include files for Internet service protocols 427.It Sy atf/ 428include files for the Automated Testing Framework; see 429.Xr atf 1 430.It Sy g++/ 431include files for the C++ compiler 432.It Sy machine/ 433machine specific include files 434.It Sy net/ 435.It Sy netatalk/ 436C include files for AppleTalk protocols 437miscellaneous network include files; 438see 439.Xr atalk 4 440.It Sy netinet/ 441include files for Internet standard protocols; see 442.Xr inet 4 443.It Sy netinet6/ 444include files for Internet protocol version 6; see 445.Xr inet6 4 446.It Sy netiso/ 447include files for ISO standard protocols; see 448.Xr iso 4 449.It Sy netkey/ 450include files for secret key management, used for security protocols; see 451.Xr ipsec 4 452.It Sy netnatm/ 453C include files for native mode ATM 454.It Sy nfs/ 455C include files for NFS (Network File System) 456.It Sy protocols/ 457C include files for Berkeley service protocols 458.It Sy sys/ 459system C include files (kernel data structures) 460.It Sy ufs/ 461C include files for UFS (The U-word File System) 462.El 463.Pp 464.It Sy lib/ 465archive, profiled, position independent archive, and shared libraries 466.It Sy libdata/ 467miscellaneous utility data files 468.It Sy libexec/ 469system daemons \*[Am] system utilities (executed by other programs) 470.Pp 471.Bl -tag -width "uucp/" -compact 472.It Sy uucp/ 473UUCP binaries and scripts (historically placed; to be moved) 474.El 475.Pp 476.It Sy mdec/ 477boot blocks, etc. 478.It Sy obj/ 479architecture-specific target tree produced by building the 480.Pa /usr/src 481tree; normally a symbolic link or mounted filesystem 482.It Sy pkg/ 483packages maintained by groups other than the 484.Nx 485Project. 486.Pp 487.Bl -tag -width "include/" -compact 488.It Sy bin/ 489contributed binaries 490.It Sy include/ 491contributed include files 492.It Sy lib/ 493contributed libraries 494.It Sy libdata/ 495contributed data files 496.It Sy libexec/ 497contributed daemons 498.It Sy sbin/ 499contributed system utilities 500.El 501.Pp 502.It Sy pkgsrc/ 503build descriptions ("packages") for the 504.Nx 505packages system. 506.Pp 507.Bl -tag -width "distfilesX" -compact 508.It Sy distfiles/ 509Where unchanged source archives are fetched to/stored 510.It Sy packages/ 511Where compiled binary packages are stored 512.El 513.Pp 514There are also several other subdirectories which contain packages of 515a certain category, e.g., archivers, graphics, ... 516.Pp 517.It Sy sbin/ 518system daemons and system utilities (normally executed by the super-user) 519.It Sy share/ 520architecture-independent text files 521.Pp 522.Bl -tag -width "calendar/" -compact 523.It Sy calendar/ 524a variety of calendar files; see 525.Xr calendar 1 526.It Sy dict/ 527word lists; 528see 529.Xr look 1 530and 531.Xr spell 1 532.Pp 533.Bl -tag -width "special/" -compact 534.It Sy words 535common words 536.It Sy web2 537words of Webster's 2nd International 538.It Sy papers/ 539reference databases; 540see 541.Xr refer 1 542.It Sy special/ 543custom word lists; 544see 545.Xr spell 1 546.El 547.Pp 548.It Sy doc/ 549miscellaneous documentation; source for most of the printed 550.Bx 4.3 551manuals (available 552from the 553.Tn USENIX 554association) 555.It Sy games/ 556text files used by various games 557.It Sy i18n/ 558internationalization databases; see 559.Xr iconv 3 560.It Sy locale/ 561locale databases and gettext message catalogs; see 562.Xr setlocale 3 563and 564.Xr gettext 3 565.It Sy man/ 566formatted manual pages 567.It Sy me/ 568macros for use with the 569.Xr me 7 570macro package 571.It Sy misc/ 572miscellaneous system-wide text files 573.Pp 574.Bl -tag -width "termcap" -compact 575.It Sy termcap 576terminal characteristics database; 577see 578.Xr termcap 5 579.El 580.Pp 581.It Sy mk/ 582include files for 583.Xr make 1 584.It Sy ms/ 585macros for use with the 586.Xr ms 7 587macro package 588.It Sy nls/ 589message catalogs; see 590.Xr catgets 3 591.It Sy skel/ 592sample initialization files for new user accounts 593.It Sy tabset/ 594tab description files for a variety of terminals, used in 595the termcap file; 596see 597.Xr termcap 5 598.It Sy tmac/ 599text processing macros; 600see 601.Xr nroff 1 602and 603.Xr troff 1 604.It Sy zoneinfo/ 605timezone configuration information; 606see 607.Xr tzfile 5 608.El 609.It Sy tests/ 610test programs; see 611.Xr atf-run 1 612for information on how to run them 613.El 614.Pp 615.It Sy /usr/src/ 616.Nx 617and local source files 618.Pp 619.Bl -tag -width "domestic/" -compact 620.It Sy bin/ 621source for utilities/files in 622.Pa /bin 623.It Sy common/ 624sources shared between kernel and userland 625.It Sy crypto/ 626cryptographic source, which may have import or export restrictions 627.It Sy dist/ 628third-party 629.Sq virgin 630source code, referenced by other parts of the source tree 631.It Sy distrib/ 632tools and data-files for making distributions 633.It Sy doc/ 634documentation about the source tree (i.e., about the tree, not about 635how to use the built software.) 636.It Sy etc/ 637source (usually example files) for files in 638.Pa /etc 639.It Sy external/ 640source for programs from external third parties 641(where 642.Nx 643is the not the primary maintainer), 644grouped by license, and then products per license 645.Pp 646.Bl -tag -width "bsd/" -compact 647.It Sy bsd/ 648BSD (or equivalent) licensed software, 649possibly with the 650.Dq advertising clause 651.El 652.Pp 653.It Sy games/ 654source for utilities/files in 655.Pa /usr/games 656.It Sy gnu/ 657source for programs covered by the 658.Tn GNU 659license (or similar) 660.It Sy include/ 661source for files in 662.Pa /usr/include 663.It Sy lib/ 664source for libraries in 665.Pa /usr/lib 666.It Sy libexec/ 667source for utilities/files in 668.Pa /usr/libexec 669.It Sy regress/ 670various regression tests 671.It Sy rescue/ 672source/makefiles for /rescue 673.It Sy sbin/ 674source for utilities/files in 675.Pa /sbin 676.It Sy share/ 677source for files in 678.Pa /usr/share 679.Pp 680.Bl -tag -width "doc/" -compact 681.It Sy doc/ 682.Pp 683.Bl -tag -width "papers/" -compact 684.It Sy papers/ 685source for various Berkeley technical papers 686.It Sy psd/ 687source for Programmer's Supplementary Documents 688.It Sy smm/ 689source for System Manager's Manual 690.It Sy usd/ 691source for User's Supplementary Documents 692.Pp 693.El 694.El 695.It Sy sys/ 696kernel source files 697.Pp 698.Bl -tag -width "gdbscripts/" -compact 699.It Sy arch/ 700architecture-specific support 701.Pp 702.Bl -tag -width "playstation2/" -compact 703.It Sy acorn26/ 704Acorn Archimedes, A-series and R-series systems 705.It Sy acorn32/ 706Acorn RiscPC/A7000 and VLSI RC7500 707.It Sy algor/ 708Algorithmics Ltd. MIPS evaluations boards 709.It Sy alpha/ 710Digital/Compaq Alpha 711.It Sy amd64/ 712Computers with x86_64 capable CPUs 713.It Sy amiga/ 714Commodore Amiga and MacroSystem DraCo 715.It Sy amigappc/ 716PowerPC based Amiga boards 717.It Sy arc/ 718MIPS-based machines following the Advanced RISC Computing spec 719.It Sy arm/ 720ARM processor general support 721.It Sy atari/ 722Atari TT030, Falcon and Hades 723.It Sy bebox/ 724Be Inc. BeBox 725.It Sy cats/ 726Chalice Technology's CATS and Intel's EBSA-285 evaluation boards 727.It Sy cesfic/ 728CES FIC8234 VME processor board 729.It Sy cobalt/ 730Cobalt Networks' MIPS-based Microserver 731.It Sy dreamcast/ 732Sega Dreamcast game console 733.It Sy evbarm/ 734ARM based evaluation boards 735.It Sy evbmips/ 736MIPS based evaluation boards 737.It Sy evbppc/ 738PowerPC based evaluation boards and appliances 739.It Sy evbsh3/ 740SH3/SH4 based evaluation boards 741.It Sy ews4800mips/ 742NEC's MIPS based EWS4800 workstations 743.It Sy hp300/ 744Hewlett-Packard 9000/300 and 400 680x0-based workstations 745.It Sy hp700/ 746Hewlett-Packard 9000/700 HPPA based workstations 747.It Sy hpcarm/ 748StrongARM based WinCE PDA machines 749.It Sy hpcmips/ 750MIPS based WinCE PDA machines 751.It Sy hpcsh/ 752Hitachi SH3/4 based WinCE PDA machines 753.It Sy hppa/ 754HPPA processor general support 755.It Sy i386/ 75680x86-based IBM PCs and clones 757.It Sy ibmnws/ 758IBM Network Station 1000 759.It Sy iyonix/ 760Castle Technology's Iyonix ARM based PCs 761.It Sy luna68k/ 762Omron Tateishi Electric's 680x0-based LUNA workstations 763.It Sy m68k/ 764680x0 processor general support 765.It Sy mac68k/ 766Apple Macintosh with 68k CPU 767.It Sy macppc/ 768Apple Power Macintosh and clones 769.It Sy mips/ 770MIPS processor general support 771.It Sy mipsco/ 772MIPS Computer Systems Inc. family of workstations and servers 773.It Sy mmeye/ 774Brains Inc. SH3 based mmEye multimedia server 775.It Sy mvme68k/ 776Motorola MVME 680x0-based SBCs 777.It Sy mvmeppc/ 778Motorola PowerPC VME SBCs 779.It Sy netwinder/ 780StrongARM based NetWinder machines 781.It Sy news68k/ 782Sony's 680x0-based NEWS workstations 783.It Sy newsmips/ 784Sony's MIPS-based NEWS workstations 785.It Sy next68k/ 786NeXT 68k "black" hardware 787.It Sy ofppc/ 788Open Firmware PowerPC workstations 789.It Sy playstation2/ 790SONY PlayStation 2 791.It Sy pmax/ 792Digital MIPS-based DECstations and DECsystems 793.It Sy powerpc/ 794PowerPC processor support 795.It Sy prep/ 796PReP (PowerPC Reference Platform) and CHRP machines 797.It Sy sandpoint/ 798Motorola Sandpoint reference platform 799.It Sy sbmips/ 800Broadcom/SiByte evaluation boards 801.It Sy sgimips/ 802Silicon Graphics' MIPS-based workstations 803.It Sy sh3/ 804SH3/SH4 processor general support 805.It Sy shark/ 806Digital DNARD ("Shark") 807.It Sy sparc/ 808Sun Microsystems SPARC (32-bit) and UltraSPARC (in 32-bit mode) 809.It Sy sparc64/ 810Sun Microsystems UltraSPARC (in native 64-bit mode) 811.It Sy sun2/ 812Sun Microsystems 68010-based Sun 2 architecture 813.It Sy sun3/ 814Sun Microsystems 68020/68030-based Sun 3/3x architecture 815.It Sy sun68k/ 816680x0-based Sun architecture general support 817.It Sy vax/ 818Digital VAX 819.It Sy x68k/ 820Sharp X680x0 680x0-based workstations 821.It Sy x86/ 822General support for PC/AT compatibles with ia32 or x86_64 CPUs 823.It Sy xen/ 824The Xen virtual machine monitor 825.It Sy zaurus/ 826Sharp C3x00 Arm based PDA 827.El 828.Pp 829.It Sy compat/ 830kernel compatibility modules directory 831.Pp 832.Bl -tag -width "ossaudio/" -compact 833.It Sy common/ 834common compatibility routines, old 835.Bx 4 836and 837.Nx 838routines. 839.It Sy freebsd/ 840support for 841.Fx 842binaries; see 843.Xr compat_freebsd 8 844.It Sy hpux/ 845support for 68000 HP-UX binaries 846.It Sy ibcs2/ 847support for Intel Binary binaries 848.It Sy linux/ 849support for Linux binaries; see 850.Xr compat_linux 8 851.It Sy m68k4k/ 852support for 4KB page 68000 binaries 853.It Sy netbsd32/ 854support for 855.Nx 85632-bit binaries on 64 bit platforms with compatible CPU families 857.It Sy osf1/ 858support for 859.Tn Digital 860.Ux 861.Po 862formerly 863.Tn OSF/1 864.Pc 865binaries 866.It Sy ossaudio/ 867support for OSS audio 868.It Sy pecoff/ 869support for 870.Tn Win32 871binaries; see 872.Xr compat_pecoff 8 873.It Sy sunos/ 874support for 875.Tn SunOS 4.x 876binaries; see 877.Xr compat_sunos 8 878.It Sy svr4/ 879support for System V Release 4 binaries; see 880.Xr compat_svr4 8 881.It Sy ultrix/ 882support for 883.Tn ULTRIX 884binaries 885.It Sy vax1k/ 886support for older VAX binaries that started on a 1 KB boundary 887.El 888.Pp 889.It Sy conf/ 890architecture independent configuration directory 891.It Sy crypto/ 892cryptographic kernel source, which may have import or export restrictions 893.It Sy ddb/ 894in kernel debugger 895.It Sy dev/ 896architecture independent device support 897.It Sy fs/ 898miscellaneous file systems 899.Bl -tag -width "filecorefs/" -compact 900.It Sy adosfs/ 901AmigaDOS file-system support; see 902.Xr mount_ados 8 903.It Sy cd9660/ 904support for the ISO-9660 filesystem; see 905.Xr mount_cd9660 8 906.It Sy filecorefs/ 907support for the Acorn RISC OS filecore filesystem; see 908.Xr mount_filecore 8 909.It Sy msdosfs/ 910.Tn MS-DOS 911file system; see 912.Xr mount_msdos 8 913.It Sy ntfs/ 914NTFS filesystem support; see 915.Xr mount_ntfs 8 916.It Sy ptyfs/ 917pseudo-terminal device filesystem; see 918.Xr mount_ptyfs 8 919.It Sy smbfs/ 920SMB/CIFS filesystem support; see 921.Xr mount_smbfs 8 922.It Sy union/ 923union file system; see 924.Xr mount_union 8 925.El 926.It Sy gdbscripts/ 927support for accessing kernel structures from within the debugger 928.Xr gdb 1 . 929.It Sy ipkdb/ 930support for kernel debugging over the network 931.Pp 932.It Sy kern/ 933support for the high kernel (system calls) 934.It Sy lib/ 935kernel libraries 936.Pp 937.Bl -tag -width "libkern/" -compact 938.It Sy libkern/ 939C library routines used in the kernel 940.It Sy libsa/ 941machine independent stand alone kernel library 942.It Sy libz/ 943compression library 944.El 945.Pp 946.It Sy miscfs/ 947miscellaneous file systems 948.Pp 949.Bl -tag -width "deadfs/" -compact 950.It Sy deadfs/ 951kernel only dead file system 952.It Sy fdesc/ 953file descriptor file system; see 954.Xr mount_fdesc 8 955.It Sy fifofs/ 956POSIX FIFO support 957.It Sy genfs/ 958kernel only generic file system 959.It Sy kernfs/ 960kernel namespace file system; see 961.Xr mount_kernfs 8 962.It Sy nullfs/ 963loop back file system; see 964.Xr mount_null 8 965.It Sy overlay/ 966overlay file system; see 967.Xr mount_overlay 8 968.It Sy portal/ 969portal file system; see 970.Xr mount_portal 8 971.It Sy procfs/ 972process file system; see 973.Xr mount_procfs 8 974.It Sy specfs/ 975kernel only special file system 976.It Sy syncfs/ 977kernel trickle sync algorithm 978.It Sy umapfs/ 979user and group re-mapping file system; see 980.Xr mount_umap 8 981.El 982.Pp 983.It Sy net/ 984miscellaneous networking support 985.It Sy netatalk/ 986AppleTalk networking support 987.It Sy netinet/ 988IP networking support 989.It Sy netinet6/ 990IPv6 networking support 991.It Sy netiso/ 992ISO networking support 993.It Sy netkey/ 994Key database for IPsec networking support 995.It Sy netnatm/ 996ATM networking support 997.It Sy nfs/ 998NFS support 999.It Sy stand/ 1000kernel standalone support 1001.It Sy sys/ 1002kernel (and system) include files 1003.It Sy ufs/ 1004local filesystem support 1005.Pp 1006.Bl -tag -width "ffs/" -compact 1007.It Sy ffs/ 1008the Berkeley Fast File System 1009.It Sy lfs/ 1010the log-structured file system 1011.It Sy mfs/ 1012the in-memory file system 1013.It Sy ufs/ 1014shared 1015.Ux 1016file system support 1017.El 1018.It Sy uvm/ 1019UVM virtual memory system 1020.El 1021.It Sy tests/ 1022source for test programs in 1023.Pa /usr/tests 1024.It Sy usr.bin/ 1025source for utilities/files in 1026.Pa /usr/bin 1027.It Sy usr.sbin/ 1028source for utilities/files in 1029.Pa /usr/sbin 1030.El 1031.It Sy /var/ 1032multi-purpose log, temporary, transient, and spool files 1033.Pp 1034.Bl -tag -width "preserve/" -compact 1035.It Sy account/ 1036system accounting files 1037.Pp 1038.Bl -tag -width "acct" -compact 1039.It Sy acct 1040execution accounting file; 1041see 1042.Xr acct 5 1043.El 1044.Pp 1045.It Sy at/ 1046timed command scheduling files; 1047see 1048.Xr at 1 1049.It Sy backups/ 1050miscellaneous backup files, largely of files found in 1051.Pa /etc 1052.It Sy chroot/ 1053home directories of applications which are run in a 1054.Xr chroot 8 1055.Dq cage . 1056.It Sy crash/ 1057system crash dumps; see 1058.Xr savecore 8 1059.It Sy cron/ 1060scheduled commands configuration files; see 1061.Xr cron 8 1062.It Sy db/ 1063miscellaneous automatically generated system-specific database files, 1064and persistent files used in the maintenance of third party software. 1065.Pp 1066.Bl -tag -width "monthly.out" -compact 1067.It Sy pkg 1068default location for metadata related to third party software 1069packages. 1070See 1071.Xr pkg_install 1 1072for more details of the 1073.Nx 1074Packages Collection, or pkgsrc. 1075.El 1076.Pp 1077.It Sy games/ 1078miscellaneous game status and log files 1079.It Sy heimdal/ 1080Kerberos 5 KDC database; see 1081.Xr kdc 8 1082.It Sy log/ 1083miscellaneous system log files 1084.Pp 1085.Bl -tag -width "monthly.out" -compact 1086.It Sy amd.* 1087.Xr amd 8 1088logs 1089.It Sy daily.out 1090output of the last run of the 1091.Pa /etc/daily 1092script 1093.It Sy ftp.* 1094.Xr ftp 1 1095logs 1096.It Sy kerberos.* 1097.Xr kerberos 8 1098logs 1099.It Sy lastlog 1100system last time logged in log; see 1101.Xr utmp 5 1102.It Sy lpd-errs.* 1103printer daemon error logs; see 1104.Xr lpd 8 1105.It Sy maillog.* 1106.Xr sendmail 8 1107log files 1108.It Sy messages.* 1109general system information log 1110.It Sy monthly.out 1111output of the last run of the 1112.Pa /etc/monthly 1113script 1114.It Sy secure 1115sensitive security information log 1116.It Sy sendmail.st 1117.Xr sendmail 8 1118statistics 1119.It Sy timed.* 1120.Xr timed 8 1121logs 1122.It Sy weekly.out 1123output of the last run of the 1124.Pa /etc/weekly 1125script 1126.It Sy wtmp 1127login/logout log; 1128see 1129.Xr utmp 5 1130.El 1131.Pp 1132.It Sy mail/ 1133user system mailboxes 1134.It Sy msgs/ 1135system messages; see 1136.Xr msgs 1 1137.\" since we use nvi (now called vi) this isn't the place any more, is it? 1138.It Sy preserve/ 1139temporary home of files preserved after an accidental death of 1140.Xr ex 1 1141or 1142.Xr vi 1 1143.It Sy quotas/ 1144filesystem quota information 1145.It Sy run/ 1146system information files, rebuilt after each reboot 1147.Pp 1148.Bl -tag -width "utmp" -compact 1149.It Sy utmp 1150database of current users; see 1151.Xr utmp 5 1152.El 1153.Pp 1154.It Sy rwho/ 1155rwho data files; see 1156.Xr rwhod 8 , 1157.Xr rwho 1 , 1158and 1159.Xr ruptime 1 1160.It Sy spool/ 1161miscellaneous printer and mail system spooling directories 1162.Pp 1163.Bl -tag -width "uucppublic/" -compact 1164.It Sy ftp/ 1165commonly 1166.Dq ~ftp , 1167the anonymous ftp root directory; see 1168.Xr ftpd 8 1169.It Sy mqueue/ 1170sendmail mail queue; 1171see 1172.Xr sendmail 8 1173.It Sy news/ 1174Network news archival and spooling directories 1175.It Sy output/ 1176printer spooling directories 1177.It Sy postfix/ 1178postfix mail queue; 1179see 1180.Xr postfix 1 1181.It Sy uucp/ 1182uucp spool directory 1183.It Sy uucppublic/ 1184commonly 1185.Dq ~uucp , 1186the uucp public temporary directory; see 1187.Xr uucp 1 1188.El 1189.Pp 1190.It Sy tmp/ 1191temporary files that are not discarded between system reboots 1192.Pp 1193.Bl -tag -width "vi.recover/" -compact 1194.It Sy vi.recover/ 1195recovery directory for new 1196.Xr vi 1 1197.El 1198.Pp 1199.It Sy yp/ 1200Databases and configuration for the NIS (YP) system; see 1201.Xr nis 8 . 1202.El 1203.El 1204.Sh SEE ALSO 1205.Xr apropos 1 , 1206.Xr ls 1 , 1207.Xr whatis 1 , 1208.Xr whereis 1 , 1209.Xr which 1 1210.Sh HISTORY 1211A 1212.Nm 1213manual page appeared in 1214.At v7 . 1215