1.\" $NetBSD: hier.7,v 1.41 2002/03/06 02:42:30 simonb 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. All advertising materials mentioning features or use of this software 15.\" must display the following acknowledgement: 16.\" This product includes software developed by the University of 17.\" California, Berkeley and its contributors. 18.\" 4. Neither the name of the University nor the names of its contributors 19.\" may be used to endorse or promote products derived from this software 20.\" without specific prior written permission. 21.\" 22.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32.\" SUCH DAMAGE. 33.\" 34.\" @(#)hier.7 8.5 (Berkeley) 6/1/94 35.\" 36.Dd October 15, 2001 37.Dt HIER 7 38.Os 39.Sh NAME 40.Nm hier 41.Nd layout of filesystems 42.Sh DESCRIPTION 43An outline of the filesystem hierarchy. 44.Pp 45Naming is very important. 46The 47.Ux 48System relies on filename conventions for much of its power as a system. 49The following file system layout describes generally where things are 50and what they are, with references to other man pages for more detailed 51documentation. 52.Pp 53Not all files will be in every system. 54.Pp 55.Bl -tag -width "/altroot/" 56.It Sy \&/ 57root directory of the system 58.It Sy /COPYRIGHT 59system copyright notice, most often put on 60.Tn CD-ROM 61distributions. 62.It Sy "/[a-z]" 63user filesystems 64.It Sy /altroot/ 65alternate root filesystem, in case of disaster 66.It Sy /amd/ 67home directories mount point; see 68.Xr amd 8 69.It Sy /bin/ 70utilities used in both single and multi-user environments 71.It Sy /boot* 72second-stage boot loader(s) for some platforms; see 73.Xr installboot 8 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 fd/ 85file descriptor files; 86see 87.Xr fd 4 88.It Sy drum 89system swap space; see 90.Xr drum 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 stderr 105.It Sy stdin 106.It Sy stdout 107file descriptor files; 108see 109.Xr fd 4 110.It Sy null 111the null device; see 112.Xr null 4 113.It Sy tty 114process' controlling terminal device; see 115.Xr tty 4 116.It Sy zero 117the zero device; see 118.Xr zero 4 119.El 120.It Sy /dump/ 121online 122.Xr dump 8 123repository 124.It Sy /etc/ 125system configuration files and scripts 126.Pp 127.Bl -tag -width "master.passwd" -compact 128.It Sy amd* 129configuration files for 130.Xr amd 8 131.It Sy changelist 132files backed up by the security script 133.It Sy crontab 134schedule used by the 135.Xr cron 8 136daemon 137.It Sy csh.cshrc 138.It Sy csh.login 139.It Sy csh.logout 140system-wide scripts for 141.Xr csh 1 142.It Sy daily 143script run each day by 144.Xr cron 8 145.It Sy daily.conf 146configuration file for 147.Sy daily ; 148see 149.Xr daily.conf 5 150.It Sy defaults/ 151default configuration files read by various 152.Pa /etc/*.conf 153files 154.It Sy disktab 155disk description file, see 156.Xr disktab 5 157.It Sy dm.conf 158dungeon master configuration; see 159.Xr dm.conf 5 160.It Sy dumpdates 161dump history; see 162.Xr dump 8 163.It Sy exports 164filesystem export information; see 165.Xr mountd 8 166.It Sy fstab 167filesystem information; see 168.Xr fstab 5 169and 170.Xr mount 8 171.It Sy ftpusers 172users denied 173.Xr ftp 1 174access; see 175.Xr ftpd 8 176.It Sy ftpwelcome 177.Xr ftp 1 178initial message; see 179.Xr ftpd 8 180.It Sy gettytab 181terminal configuration database; see 182.Xr gettytab 5 183.It Sy group 184group permissions file; see 185.Xr group 5 186.It Sy hosts 187host name database backup for 188.Xr named 8 ; 189see 190.Xr hosts 5 191.It Sy hosts.equiv 192trusted machines with equivalent user ID's 193.It Sy hosts.lpd 194trusted machines with printing privileges 195.It Sy inetd.conf 196Internet server configuration file; see 197.Xr inetd 8 198.It Sy kerberosIV/ 199configuration files for the kerberos version IV; 200see 201.Xr kerberos 8 202.It Sy localtime 203local timezone information; 204see 205.Xr ctime 3 206.It Sy mail/ 207configuration files for 208.Xr sendmail 8 209.Pp 210.Bl -tag -width "sendmail.*" -compact 211.It Sy aliases* 212name alias files 213.It Sy sendmail.* 214.Xr sendmail 8 215configuration information 216.El 217.It Sy mail.rc 218system-wide initialization script for 219.Xr mail 1 220.It Sy man.conf 221configuration file for 222.Xr man 1 ; 223see 224.Xr man.conf 5 225.It Sy master.passwd 226.It Sy passwd 227.It Sy pwd.db 228.It Sy spwd.db 229password files and their databases; see 230.Xr pwd_mkdb 8 231.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 phones 263remote host phone number data base; see 264.Xr phones 5 265.It Sy printcap 266system printer configuration; see 267.Xr printcap 5 268.It Sy protocols 269protocol name database; see 270.Xr protocols 5 271.It Sy rc 272.It Sy rc.shutdown 273.It Sy rc.local 274.It Sy rc.d/ 275system startup and shutdown scripts; see 276.Xr rc 8 277and 278.Xr rc.d 8 279.It Sy rc.conf 280configuration file for system startup and shutdown scripts; see 281.Xr rc.conf 5 282.It Sy remote 283remote host description file; see 284.Xr remote 5 285.It Sy security 286daily (in)security script run by 287.Xr cron 8 288.It Sy security.conf 289configuration file for 290.Sy security ; 291see 292.Xr security.conf 5 293.It Sy services 294service name data base; see 295.Xr services 5 296.It Sy shells 297list of permitted shells; see 298.Xr shells 5 299.It Sy sliphome/ 300.Tn SLIP 301login/logout scripts; see 302.Xr sliplogin 8 303.It Sy syslog.conf 304.Xr syslogd 8 305configuration file; see 306.Xr syslog.conf 5 307.It Sy termcap 308terminal type database; see 309.Xr termcap 3 310.It Sy ttys 311terminal initialization information; see 312.Xr ttys 5 313.It Sy uucp/ 314UUCP configuration files; see 315.Xr uucp 1 316and 317.Xr uucico 8 . 318.It Sy weekly 319script run each week by 320.Xr cron 8 321.It Sy weekly.conf 322configuration file for 323.Sy weekly ; 324see 325.Xr weekly.conf 5 326.El 327.It Sy /home/ 328mount point for the automounter; see 329.Xr amd 8 330.It Sy /mnt/ 331empty directory commonly used by 332system administrators as a temporary mount point 333.It Sy /netbsd 334pure kernel executable (the operating system loaded into memory 335at boot time). 336.It Sy /root/ 337home directory for the super-user 338.Pp 339.Bl -tag -width ".profile" -compact 340.It Sy \&.rhosts 341super-user id mapping between machines 342.It Sy \&.cshrc 343super-user start-up file 344.It Sy \&.login 345super-user start-up file 346.It Sy \&.profile 347super-user start-up file 348.El 349.ne 1i 350.It Sy /sbin/ 351system programs and administration utilities 352used in both single-user and multi-user environments 353.It Sy /stand/ 354programs used in a standalone environment 355.It Sy /sys 356symbolic link to the operating system source 357.It Sy /tmp/ 358temporary files, usually a 359.Xr mfs 8 360memory-based filesystem (the contents 361of /tmp are usually NOT preserved across a system reboot) 362.It Sy /usr/ 363contains the majority of the system utilities and files 364.Pp 365.Bl -tag -width "libdata/" -compact 366.It Sy X11R6/ 367X11 files 368.Pp 369.Bl -tag -width "include/" -compact 370.It Sy bin/ 371X11 binaries 372.It Sy include/ 373X11 include files 374.It Sy lib/ 375X11 libraries 376.El 377.Pp 378.It Sy bin/ 379common utilities, programming tools, and applications 380.It Sy games/ 381the important stuff 382.It Sy include/ 383standard C include files 384.Pp 385.Bl -tag -width "kerberosIV/" -compact 386.It Sy arpa/ 387include files for Internet service protocols 388.It Sy g++/ 389include files for the C++ compiler 390.It Sy kerberosIV/ 391include files for kerberos authentication package; 392see 393.Xr kerberos 8 394.It Sy machine/ 395machine specific include files 396.It Sy net/ 397.It Sy netatalk/ 398C include files for AppleTalk protocols 399miscellaneous network include files; 400see 401.Xr atalk 4 402.It Sy netccitt/ 403CCITT networking include files 404.It Sy netinet/ 405include files for Internet standard protocols; see 406.Xr inet 4 407.It Sy netinet6/ 408include files for Internet protocol version 6; see 409.Xr inet6 4 410.It Sy netiso/ 411include files for ISO standard protocols; see 412.Xr iso 4 413.It Sy netkey/ 414include files for secret key management, used for security protocols; see 415.Xr ipsec 4 416.It Sy natm/ 417C include files for native mode ATM 418.It Sy netns/ 419C include files for XNS standard protocols; see 420.Xr ns 4 421.It Sy nfs/ 422C include files for NFS (Network File System) 423.It Sy protocols/ 424C include files for Berkeley service protocols 425.It Sy sys/ 426system C include files (kernel data structures) 427.It Sy ufs/ 428C include files for UFS (The U-word File System) 429.El 430.Pp 431.It Sy lib/ 432archive, profiled, position independant archive, and shared libraries 433.It Sy libdata/ 434miscellaneous utility data files 435.It Sy libexec/ 436system daemons \*[Am] system utilities (executed by other programs) 437.Pp 438.Bl -tag -width "uucp/" -compact 439.It Sy uucp/ 440UUCP binaries and scripts (historically placed; to be moved) 441.El 442.Pp 443.It Sy local/ 444local executables, libraries, etc. 445.Pp 446.Bl -tag -width "include/" -compact 447.It Sy bin/ 448local binaries 449.It Sy include/ 450local include files 451.It Sy libexec/ 452local daemons 453.It Sy libdata/ 454local data files 455.El 456.Pp 457.It Sy mdec/ 458boot blocks, etc. 459.It Sy pkg/ 460packages maintained by groups other than the 461.Nx 462Project. 463.Pp 464.Bl -tag -width "include/" -compact 465.It Sy bin/ 466contributed binaries 467.It Sy sbin/ 468contributed system utilities 469.It Sy include/ 470contributed include files 471.It Sy libexec/ 472contributed daemons 473.It Sy libdata/ 474contributed data files 475.El 476.Pp 477.It Sy pkgsrc/ 478build descriptions ("packages") for the 479.Nx 480packages system. 481.Pp 482.Bl -tag -width "distfiles" -compact 483.It Sy distfiles 484Where unchanged source archives are fetched to/stored 485.It Sy packages 486Where compiled binary packages are stored 487.El 488.Pp 489There are also several other subdirectories which contain packages of 490a certain category, e.g. archivers, graphics, ... 491.Pp 492.It Sy obj/ 493architecture-specific target tree produced by building the 494.Pa /usr/src 495tree; normally a symbolic link or mounted filesystem 496.It Sy sbin/ 497system daemons and system utilities (normally executed by the super-user) 498.It Sy share/ 499architecture-independent text files 500.Pp 501.Bl -tag -width "calendar/" -compact 502.It Sy calendar/ 503a variety of calendar files; see 504.Xr calendar 1 505.It Sy dict/ 506word lists; 507see 508.Xr look 1 509and 510.Xr spell 1 511.Pp 512.Bl -tag -width "special/" -compact 513.It Sy words 514common words 515.It Sy web2 516words of Webster's 2nd International 517.It Sy papers/ 518reference databases; 519see 520.Xr refer 1 521.It Sy special/ 522custom word lists; 523see 524.Xr spell 1 525.El 526.Pp 527.It Sy doc/ 528miscellaneous documentation; source for most of the printed 529.Bx 4.3 530manuals (available 531from the 532.Tn USENIX 533association) 534.It Sy games/ 535text files used by various games 536.It Sy lkm/ 537documentation on the loadable kernel modules interface 538.It Sy man/ 539formatted manual pages 540.It Sy me/ 541macros for use with the 542.Xr me 7 543macro package 544.It Sy misc/ 545miscellaneous system-wide text files 546.Pp 547.Bl -tag -width "termcap" -compact 548.It Sy termcap 549terminal characteristics database; 550see 551.Xr termcap 5 552.El 553.Pp 554.It Sy mk/ 555include files for 556.Xr make 1 557.It Sy ms/ 558macros for use with the 559.Xr ms 7 560macro package 561.It Sy skel/ 562sample initialization files for new user accounts 563.It Sy tabset/ 564tab description files for a variety of terminals, used in 565the termcap file; 566see 567.Xr termcap 5 568.It Sy tmac/ 569text processing macros; 570see 571.Xr nroff 1 572and 573.Xr troff 1 574.It Sy zoneinfo/ 575timezone configuration information; 576see 577.Xr tzfile 5 578.El 579.Pp 580.El 581.Pp 582.It Sy /usr/src/ 583.Nx 584and local source files 585.Pp 586.Bl -tag -width "domestic/" -compact 587.It Sy bin/ 588source for utilities/files in 589.Pa /bin 590.It Sy distrib/ 591tools and data-files for making distributions 592.It Sy crypto/ 593cryptographic source, which may have import or export restrictions 594.It Sy dist/ 595third-party 596.Sq virgin 597source code, referenced by other parts of the source tree 598.It Sy etc/ 599source (usually example files) for files in 600.Pa /etc 601.It Sy games/ 602source for utilities/files in 603.Pa /usr/games 604.It Sy gnu/ 605source for programs covered by the 606.Tn GNU 607license (or similar) 608.It Sy include/ 609source for files in 610.Pa /usr/include 611.It Sy lib/ 612source for libraries in 613.Pa /usr/lib 614.It Sy libexec/ 615source for utilities/files in 616.Pa /usr/libexec 617.It Sy regress/ 618various regression tests 619.It Sy sbin/ 620source for utilities/files in 621.Pa /sbin 622.It Sy share/ 623source for files in 624.Pa /usr/share 625.Pp 626.Bl -tag -width "doc/" -compact 627.It Sy doc/ 628.Pp 629.Bl -tag -width "papers/" -compact 630.It Sy papers/ 631source for various Berkeley technical papers 632.It Sy psd/ 633source for Programmer's Supplementary Documents 634.It Sy smm/ 635source for System Manager's Manual 636.It Sy usd/ 637source for User's Supplementary Documents 638.Pp 639.El 640.El 641.It Sy sys/ 642kernel source files 643.Pp 644.Bl -tag -width "gdbscripts/" -compact 645.It Sy adosfs/ 646AmigaDOS file-system support; see 647.Xr mount_ados 8 648.It Sy arch/ 649architecture-specific support 650.Pp 651.Bl -tag -width "playstation2/" -compact 652.It Sy acorn32/ 653Acorn RiscPC/A7000/NC and compatibles 654.It Sy algor/ 655Algorithmics MIPS evaluations board 656.It Sy alpha/ 657Digital Equipment Corp. Alpha architecture 658.It Sy amiga/ 659Amiga architecture 660.It Sy amigappc/ 661PowerPC based Amiga architecture 662.It Sy arc/ 663ARC specification compliant systems. 664.It Sy arm/ 665ARM processor general support 666.It Sy arm26/ 667ARM2 and ARM3 based systems 668.It Sy atari/ 669Atari architecture 670.It Sy bebox/ 671Be Inc. BeBox architecture 672.It Sy cats/ 673Chalice Technology StrongARM evaluation board 674.It Sy cesfic/ 675CES FIC8234 VME processor board 676.It Sy cobalt/ 677Cobalt Networks MIPS Microserver architecture 678.It Sy dreamcast/ 679Sega Dreamcast game console 680.It Sy evbsh3/ 681SH3 based evaluation boards 682.It Sy hp300/ 683Hewlett-Packard 9000/300 680x0-based workstations 684.It Sy hparm/ 685StrongARM based WinCE hand-held devices 686.It Sy hpcmips/ 687MIPS based WinCE hand-held devices 688.It Sy hpcsh/ 689Hitachi SH3/4 based WinCE hand-held devices 690.It Sy i386/ 691Intel 386/486/Pentium/etc. workstations 692.It Sy luna68k/ 693Omron LUNA 68000-based workstations 694.It Sy m68k/ 695680x0 processor support 696.It Sy mac68k/ 697Apple Computer 680x0-based workstations 698.It Sy macppc/ 699Apple Computer PowerPC-based workstations 700.It Sy mips/ 701MIPS processor support 702.It Sy mipsco/ 703Mips Computer Systems Inc. architecture 704.It Sy mmeye/ 705Brains Inc. SH3 based mmEye multimedia server 706.It Sy mvme68k/ 707VME 680x0-based cards 708.It Sy news68k/ 709Sony NEWS 680x0-based workstations 710.It Sy newsmips/ 711Sony NEWS MIPS-based workstations 712.It Sy next68k/ 713NeXT 680x0-based workstations 714.It Sy ofppc/ 715Open Firmware PowerPC workstations 716.It Sy pc532/ 717pc532 architecture 718.It Sy playstation2/ 719SONY PlayStation 2 720.It Sy pmax/ 721MIPS-based DECstation architecture 722.It Sy powerpc/ 723PowerPC processor support 724.It Sy prep/ 725PowerPC Reference Platform 726.It Sy sandpoint/ 727Motorola Sandpoint reference platform 728.It Sy sbmips/ 729Broadcom/SiByte MIPS architecture 730.It Sy sgimips/ 731SGI MIPS architecture 732.It Sy sh3/ 733SH3 processor general support 734.It Sy shark/ 735StrongARM based Digital DNARD ("Shark") machines 736.It Sy sparc/ 737Sun Microsystems SPARC architecture 738.It Sy sparc64/ 739Sun Microsystems UltraSPARC architecture 740.It Sy sun2/ 741Sun Microsystems 68010-based Sun 2 architecture 742.It Sy sun3/ 743Sun Microsystems 68020/68030-based Sun 3/3x architecture 744.It Sy sun68k/ 745680x0-based Sun architecture general support 746.It Sy vax/ 747Digital Equipment Corp. VAX architecture 748.It Sy walnut/ 749IBM 405GP PowerPC "walnut" evaluation board 750.It Sy x68k/ 751Sharp X680x0 680x0-based workstations 752.It Sy x86_64/ 753AMD x86-64(tm) 64-bit CPU 754.El 755.Pp 756.It Sy compat/ 757kernel compatibility modules directory 758.Pp 759.Bl -tag -width "ossaudio/" -compact 760.It Sy common/ 761common compatibility routines, old 762.Bx 4 763and 764.Nx 765routines. 766.It Sy freebsd/ 767support for 768.Fx 769binaries; see 770.Xr compat_freebsd 8 771.It Sy hpux/ 772support for 68000 HP-UX binaries 773.It Sy ibcs2/ 774support for Intel Binary binaries 775.It Sy linux/ 776support for Linux binaries; see 777.Xr compat_linux 8 778.It Sy m68k4k/ 779support for 4Kb page 68000 binaries 780.It Sy netbsd32/ 781support for 782.Nx 78332-bit binaries on 64 bit platforms with compatible CPU families 784.It Sy osf1/ 785support for 786.Tn Digital 787.Ux 788.Po 789formerly 790.Tn OSF/1 791.Pc 792binaries 793.It Sy ossaudio/ 794support for OSS audio 795.It Sy pecoff/ 796support for 797.Tn Win32 798binaries; see 799.Xr compat_pecoff 8 800.It Sy sunos/ 801support for 802.Tn SunOS 4.x 803binaries; see 804.Xr compat_sunos 8 805.It Sy svr4/ 806support for System V Release 4 binaries; see 807.Xr compat_svr4 8 808.It Sy ultrix/ 809support for 810.Tn Ultrix 811binaries 812.It Sy vax1k/ 813support for older Vax binaries that started on a 1 KB boundary 814.El 815.Pp 816.It Sy conf/ 817architecture independent configuration directory 818.It Sy crypto/ 819cryptographic kernel source, which may have import or export restrictions 820.It Sy ddb/ 821in kernel debugger 822.It Sy dev/ 823architecture independent device support 824.It Sy filecorefs/ 825support for the Acorn RISC OS filecore filesystem; see 826.Xr mount_filecore 8 827.It Sy gdbscripts/ 828support for accessing kernel structures from within the debugger 829.Xr gdb 1 . 830.It Sy ipkdb/ 831support for kernel debugging over the network 832.It Sy isofs/ 833support for ISO filesystems 834.Pp 835.Bl -tag -width "cd9660/" -compact 836.It Sy cd9660/ 837support for the ISO-9660 filesystem; see 838.Xr mount_cd9660 8 839.El 840.Pp 841.It Sy kern/ 842support for the high kernel (system calls) 843.It Sy lib/ 844kernel libraries 845.Pp 846.Bl -tag -width "libkern/" -compact 847.It Sy libkern/ 848C library routines used in the kernel 849.It Sy libsa/ 850machine independant stand alone kernel library 851.It Sy libz/ 852compression library 853.El 854.Pp 855.It Sy lkm/ 856loadable kernel modules 857.Pp 858.Bl -tag -width "gdbscripts/" -compact 859.It Sy compat/ 860LKM support compatibility modules; currently unsupported. 861.It Sy netinet/ 862LKM support networking modules 863.Pp 864.Bl -tag -width "if_ipl/" -compact 865.It Sy if_ipl/ 866LKM for IP-Filter 867.El 868.Pp 869.It Sy vfs/ 870LKM support for file systems. 871.El 872.Pp 873.It Sy miscfs/ 874miscellaneous file systems 875.Pp 876.Bl -tag -width "deadfs/" -compact 877.It Sy deadfs/ 878kernel only dead file system 879.It Sy fdesc/ 880file descriptor file system; see 881.Xr mount_fdesc 8 882.It Sy fifofs/ 883POSIX FIFO support 884.It Sy genfs/ 885kernel only generic file system 886.It Sy kernfs/ 887kernel namespace file system; see 888.Xr mount_kernfs 8 889.It Sy nullfs/ 890loop back file system; see 891.Xr mount_null 8 892.It Sy overlay/ 893overlay file system; see 894.Xr mount_overlay 8 895.It Sy portal/ 896portal file system; see 897.Xr mount_portal 8 898.It Sy procfs/ 899process file system; see 900.Xr mount_procfs 8 901.It Sy specfs/ 902kernel only special file system 903.It Sy syncfs/ 904kernel trickle sync algorithm 905.It Sy umapfs/ 906user and group re-mapping file system; see 907.Xr mount_umap 8 908.It Sy union/ 909union file system; see 910.Xr mount_union 8 911.El 912.Pp 913.It Sy msdosfs/ 914.Tn MS-DOS 915file system; see 916.Xr mount_msdos 8 917.It Sy net/ 918miscellaneous networking support 919.It Sy netatalk/ 920AppleTalk networking support 921.It Sy netccitt/ 922CCITT networking support 923.It Sy netinet/ 924IP networking support 925.It Sy netinet6/ 926IPv6 networking support 927.It Sy netiso/ 928ISO networking support 929.It Sy netkey/ 930Key database for IPsec networking support 931.It Sy netnatm/ 932ATM networking support 933.It Sy netns/ 934XNS networking support 935.It Sy nfs/ 936NFS support 937.It Sy ntfs/ 938NTFS filesystem support 939.It Sy stand/ 940kernel standalone support 941.It Sy sys/ 942kernel (and system) include files 943.It Sy ufs/ 944local filesystem support 945.Pp 946.Bl -tag -width "ffs/" -compact 947.It Sy ffs/ 948the Berkeley Fast File System 949.It Sy lfs/ 950the log-structured file system 951.It Sy mfs/ 952the in-memory file system 953.It Sy ufs/ 954shared 955.Ux 956file system support 957.El 958.It Sy uvm/ 959UVM virtual memory system 960.El 961.It Sy usr.bin/ 962source for utilities/files in 963.Pa /usr/bin 964.It Sy usr.sbin/ 965source for utilities/files in 966.Pa /usr/sbin 967.El 968.It Sy /var/ 969multi-purpose log, temporary, transient, and spool files 970.Pp 971.Bl -tag -width "preserve/" -compact 972.It Sy account/ 973system accounting files 974.Pp 975.Bl -tag -width "acct" -compact 976.It Sy acct 977execution accounting file; 978see 979.Xr acct 5 980.El 981.Pp 982.It Sy at/ 983timed command scheduling files; 984see 985.Xr at 1 986.It Sy backups/ 987miscellaneous backup files, largely of files found in 988.Pa /etc 989.It Sy chroot/ 990home directories of applications which are run in a 991.Xr chroot 8 992.Dq cage . 993.It Sy crash/ 994system crash dumps; see 995.Xr savecore 8 996.It Sy cron/ 997scheduled commands configuration files; see 998.Xr cron 8 999.It Sy db/ 1000miscellaneous automatically generated system-specific database files 1001.It Sy games/ 1002miscellaneous game status and log files 1003.It Sy heimdal/ 1004Kerberos 5 KDC database; see 1005.Xr kdc 8 1006.It Sy log/ 1007miscellaneous system log files 1008.Pp 1009.Bl -tag -width "monthly.out" -compact 1010.It Sy amd.* 1011.Xr amd 8 1012logs 1013.It Sy daily.out 1014output of the last run of the 1015.Pa /etc/daily 1016script 1017.It Sy ftp.* 1018.Xr ftp 1 1019logs 1020.It Sy kerberos.* 1021.Xr kerberos 8 1022logs 1023.It Sy lastlog 1024system last time logged in log; see 1025.Xr utmp 5 1026.It Sy lpd-errs.* 1027printer daemon error logs; see 1028.Xr lpd 8 1029.It Sy maillog.* 1030.Xr sendmail 8 1031log files 1032.It Sy messages.* 1033general system information log 1034.It Sy monthly.out 1035output of the last run of the 1036.Pa /etc/monthly 1037script 1038.It Sy secure 1039sensitive security information log 1040.It Sy sendmail.st 1041.Xr sendmail 8 1042statistics 1043.It Sy timed.* 1044.Xr timed 8 1045logs 1046.It Sy weekly.out 1047output of the last run of the 1048.Pa /etc/weekly 1049script 1050.It Sy wtmp 1051login/logout log; 1052see 1053.Xr utmp 5 1054.El 1055.Pp 1056.It Sy mail/ 1057user system mailboxes 1058.It Sy msgs/ 1059system messages; see 1060.Xr msgs 1 1061.\" since we use nvi (now called vi) this isn't the place any more, is it? 1062.It Sy pkg/ 1063working files for third party packages 1064.It Sy preserve/ 1065temporary home of files preserved after an accidental death of 1066.Xr ex 1 1067or 1068.Xr vi 1 1069.It Sy quotas/ 1070filesystem quota information 1071.It Sy run/ 1072system information files, rebuilt after each reboot 1073.Pp 1074.Bl -tag -width "utmp" -compact 1075.It Sy utmp 1076database of current users; see 1077.Xr utmp 5 1078.El 1079.Pp 1080.It Sy rwho/ 1081rwho data files; see 1082.Xr rwhod 8 , 1083.Xr rwho 1 , 1084and 1085.Xr ruptime 1 1086.It Sy spool/ 1087miscellaneous printer and mail system spooling directories 1088.Pp 1089.Bl -tag -width "uucppublic/" -compact 1090.It Sy ftp/ 1091commonly 1092.Dq ~ftp , 1093the anonymous ftp root directory; see 1094.Xr ftpd 8 1095.It Sy mqueue/ 1096undelivered mail queue; 1097see 1098.Xr sendmail 8 1099.It Sy news/ 1100Network news archival and spooling directories 1101.It Sy output/ 1102printer spooling directories 1103.It Sy uucp/ 1104uucp spool directory 1105.It Sy uucppublic/ 1106commonly 1107.Dq ~uucp , 1108the uucp public temporary directory; see 1109.Xr uucp 1 1110.El 1111.Pp 1112.It Sy tmp/ 1113temporary files that are not discarded between system reboots 1114.Pp 1115.Bl -tag -width "vi.recover/" -compact 1116.It Sy vi.recover/ 1117recovery directory for new 1118.Xr vi 1 1119.El 1120.It Sy yp/ 1121Databases and configuration for the NIS (YP) system; see 1122.Xr nis 8 . 1123.El 1124.El 1125.Sh SEE ALSO 1126.Xr apropos 1 , 1127.Xr ls 1 , 1128.Xr whatis 1 , 1129.Xr whereis 1 , 1130.Xr which 1 1131.Sh HISTORY 1132A 1133.Nm 1134manual page appeared in 1135.At v7 . 1136