1.\" $NetBSD: hier.7,v 1.30 2000/11/08 12:53:42 lukem 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 November 8, 2000 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.El 117.It Sy /dump/ 118online 119.Xr dump 8 120repository 121.It Sy /etc/ 122system configuration files and scripts 123.Pp 124.Bl -tag -width "master.passwd" -compact 125.It Sy amd* 126configuration files for 127.Xr amd 8 128.It Sy changelist 129files backed up by the security script 130.It Sy crontab 131schedule used by the 132.Xr cron 8 133daemon 134.It Sy csh.cshrc 135.It Sy csh.login 136.It Sy csh.logout 137system-wide scripts for 138.Xr csh 1 139.It Sy daily 140script run each day by 141.Xr cron 8 142.It Sy daily.conf 143configuration file for 144.Sy daily ; 145see 146.Xr daily.conf 5 147.It Sy defaults/ 148default configuration files read by various 149.Pa /etc/*.conf 150files 151.It Sy disktab 152disk description file, see 153.Xr disktab 5 154.It Sy dm.conf 155dungeon master configuration; see 156.Xr dm.conf 5 157.It Sy dumpdates 158dump history; see 159.Xr dump 8 160.It Sy exports 161filesystem export information; see 162.Xr mountd 8 163.It Sy fstab 164filesystem information; see 165.Xr fstab 5 166and 167.Xr mount 8 168.It Sy ftpusers 169users denied 170.Xr ftp 1 171access; see 172.Xr ftpd 8 173.It Sy ftpwelcome 174.Xr ftp 1 175initial message; see 176.Xr ftpd 8 177.It Sy gettytab 178terminal configuration database; see 179.Xr gettytab 5 180.It Sy group 181group permissions file; see 182.Xr group 5 183.It Sy hosts 184host name database backup for 185.Xr named 8 ; 186see 187.Xr hosts 5 188.It Sy hosts.equiv 189trusted machines with equivalent user ID's 190.It Sy hosts.lpd 191trusted machines with printing privileges 192.It Sy inetd.conf 193Internet server configuration file; see 194.Xr inetd 8 195.It Sy kerberosIV/ 196configuration files for the kerberos version IV; 197see 198.Xr kerberos 1 199.It Sy localtime 200local timezone information; 201see 202.Xr ctime 3 203.It Sy mail/ 204configuration files for 205.Xr sendmail 8 206.Bp 207.Bl -tag -width "sendmail.*" -compact 208.It Sy aliases* 209name alias files 210.It Sy sendmail.* 211.Xr sendmail 8 212configuration information 213.El 214.It Sy mail.rc 215system-wide initialization script for 216.Xr mail 1 217.It Sy man.conf 218configuration file for 219.Xr man 1 ; 220see 221.Xr man.conf 5 222.It Sy master.passwd 223.It Sy passwd 224.It Sy pwd.db 225.It Sy spwd.db 226password files and their databases; see 227.Xr pwd_mkdb 8 228.It Sy mk.conf 229optional file containing 230.Xr make 1 231variables, read by pkgsrc and the system sources. 232.It Sy monthly 233script run each month by 234.Xr cron 8 235.It Sy monthly.conf 236configuration file for 237.Sy monthly ; 238see 239.Xr monthly.conf 5 240.It Sy motd 241system message of the day 242.It Sy mtree/ 243mtree configuration files; 244see 245.Xr mtree 8 246.It Sy named.* 247.It Sy namedb/ 248named configuration files and databases; 249see 250.Xr named 8 251.It Sy netgroup 252network groups; see 253.Xr netgroup 5 254.It Sy netstart 255network startup script 256.It Sy networks 257network name data base; see 258.Xr networks 5 259.It Sy phones 260remote host phone number data base; see 261.Xr phones 5 262.It Sy printcap 263system printer configuration; see 264.Xr printcap 5 265.It Sy protocols 266protocol name database; see 267.Xr protocols 5 268.It Sy rc 269.It Sy rc.shutdown 270.It Sy rc.local 271.It Sy rc.d/ 272system startup and shutdown scripts; see 273.Xr rc 8 274and 275.Xr rc.d 8 276.It Sy rc.conf 277configuration file for system startup and shutdown scripts; see 278.Xr rc.conf 5 279.It Sy remote 280remote host description file; see 281.Xr remote 5 282.It Sy security 283daily (in)security script run by 284.Xr cron 8 285.It Sy security.conf 286configuration file for 287.Sy security ; 288see 289.Xr security.conf 5 290.It Sy services 291service name data base; see 292.Xr services 5 293.It Sy shells 294list of permitted shells; see 295.Xr shells 5 296.It Sy sliphome/ 297.Tn SLIP 298login/logout scripts; see 299.Xr sliplogin 8 300.It Sy syslog.conf 301.Xr syslogd 8 302configuration file; see 303.Xr syslog.conf 5 304.It Sy termcap 305terminal type database; see 306.Xr termcap 3 307.It Sy ttys 308terminal initialization information; see 309.Xr ttys 5 310.It Sy uucp/ 311UUCP configuration files; see 312.Xr uucp 1 313and 314.Xr uucico 8 . 315.It Sy weekly 316script run each week by 317.Xr cron 8 318.It Sy weekly.conf 319configuration file for 320.Sy weekly ; 321see 322.Xr weekly.conf 5 323.El 324.It Sy /home/ 325mount point for the automounter; see 326.Xr amd 8 327.It Sy /mnt/ 328empty directory commonly used by 329system administrators as a temporary mount point 330.It Sy /netbsd 331pure kernel executable (the operating system loaded into memory 332at boot time). 333.It Sy /root/ 334home directory for the super-user 335.Pp 336.Bl -tag -width ".profile" -compact 337.It Sy \&.rhosts 338super-user id mapping between machines 339.It Sy \&.cshrc 340super-user start-up file 341.It Sy \&.login 342super-user start-up file 343.It Sy \&.profile 344super-user start-up file 345.El 346.ne 1i 347.It Sy /sbin/ 348system programs and administration utilities 349used in both single-user and multi-user environments 350.It Sy /stand/ 351programs used in a standalone environment 352.It Sy /sys 353symbolic link to the operating system source 354.It Sy /tmp/ 355temporary files, usually a 356.Xr mfs 8 357memory-based filesystem (the contents 358of /tmp are usually NOT preserved across a system reboot) 359.It Sy /usr/ 360contains the majority of the system utilities and files 361.Pp 362.Bl -tag -width "libdata/" -compact 363.It Sy X11R6/ 364X11 files 365.Pp 366.Bl -tag -width "include/" -compact 367.It Sy bin/ 368X11 binaries 369.It Sy include/ 370X11 include files 371.It Sy lib/ 372X11 libraries 373.El 374.Pp 375.It Sy bin/ 376common utilities, programming tools, and applications 377.It Sy games/ 378the important stuff 379.It Sy include/ 380standard C include files 381.Pp 382.Bl -tag -width "kerberosIV/" -compact 383.It Sy arpa/ 384include files for Internet service protocols 385.It Sy g++/ 386include files for the C++ compiler 387.It Sy kerberosIV/ 388include files for kerberos authentication package; 389see 390.Xr kerberos 1 391.It Sy machine/ 392machine specific include files 393.It Sy net/ 394.It Sy netatalk/ 395C include files for AppleTalk protocols 396miscellaneous network include files; 397see 398.Xr atalk 4 399.It Sy netccitt/ 400CCITT networking include files 401.It Sy netinet/ 402include files for Internet standard protocols; see 403.Xr inet 4 404.It Sy netinet6/ 405include files for Internet protocol version 6; see 406.Xr inet6 4 407.It Sy netiso/ 408include files for ISO standard protocols; see 409.Xr iso 4 410.It Sy netkey/ 411include files for secret key management, used for security protocols; see 412.Xr ipsec 4 413.It Sy natm/ 414C include files for native mode ATM 415.It Sy netns/ 416C include files for XNS standard protocols; see 417.Xr ns 4 418.It Sy nfs/ 419C include files for NFS (Network File System) 420.It Sy protocols/ 421C include files for Berkeley service protocols 422.It Sy sys/ 423system C include files (kernel data structures) 424.It Sy ufs/ 425C include files for UFS (The U-word File System) 426.El 427.Pp 428.It Sy lib/ 429archive, profiled, position independant archive, and shared libraries 430.It Sy libdata/ 431miscellaneous utility data files 432.It Sy libexec/ 433system daemons & system utilities (executed by other programs) 434.Pp 435.Bl -tag -width "uucp/" -compact 436.It Sy uucp/ 437UUCP binaries and scripts (historically placed; to be moved) 438.El 439.Pp 440.It Sy local/ 441local executables, libraries, etc. 442.Pp 443.Bl -tag -width "include/" -compact 444.It Sy bin/ 445local binaries 446.It Sy include/ 447local include files 448.It Sy libexec/ 449local daemons 450.It Sy libdata/ 451local data files 452.El 453.Pp 454.It Sy mdec/ 455boot blocks, etc. 456.It Sy pkg/ 457packages maintained by groups other than the 458.Nx 459Project. 460.Pp 461.Bl -tag -width "include/" -compact 462.It Sy bin/ 463contributed binaries 464.It Sy sbin/ 465contributed system utilities 466.It Sy include/ 467contributed include files 468.It Sy libexec/ 469contributed daemons 470.It Sy libdata/ 471contributed data files 472.El 473.Pp 474.It Sy pkgsrc/ 475build descriptions ("packages") for the 476.Nx 477packages system. 478.Pp 479.Bl -tag -width "distfiles" -compact 480.It Sy distfiles 481Where unchanged source archives are fetched to/stored 482.It Sy packages 483Where compiled binary packages are stored 484.El 485.Pp 486There are also several other subdirectories which contain packages of 487a certain category, e.g. archivers, graphics, ... 488.Pp 489.It Sy obj/ 490architecture-specific target tree produced by building the 491.Pa /usr/src 492tree; normally a symbolic link or mounted filesystem 493.It Sy sbin/ 494system daemons and system utilities (normally executed by the super-user) 495.It Sy share/ 496architecture-independent text files 497.Pp 498.Bl -tag -width "calendar/" -compact 499.It Sy calendar/ 500a variety of calendar files; see 501.Xr calendar 1 502.It Sy dict/ 503word lists; 504see 505.Xr look 1 506and 507.Xr spell 1 508.Pp 509.Bl -tag -width "special/" -compact 510.It Sy words 511common words 512.It Sy web2 513words of Webster's 2nd International 514.It Sy papers/ 515reference databases; 516see 517.Xr refer 1 518.It Sy special/ 519custom word lists; 520see 521.Xr spell 1 522.El 523.Pp 524.It Sy doc/ 525miscellaneous documentation; source for most of the printed 526.Bx 4.3 527manuals (available 528from the 529.Tn USENIX 530association) 531.It Sy games/ 532text files used by various games 533.It Sy lkm/ 534documentation on the loadable kernel modules interface 535.It Sy man/ 536formatted manual pages 537.It Sy me/ 538macros for use with the 539.Xr me 7 540macro package 541.It Sy misc/ 542miscellaneous system-wide text files 543.Pp 544.Bl -tag -width "termcap" -compact 545.It Sy termcap 546terminal characteristics database; 547see 548.Xr termcap 5 549.El 550.Pp 551.It Sy mk/ 552include files for 553.Xr make 1 554.It Sy ms/ 555macros for use with the 556.Xr ms 7 557macro package 558.It Sy skel/ 559sample initialization files for new user accounts 560.It Sy tabset/ 561tab description files for a variety of terminals, used in 562the termcap file; 563see 564.Xr termcap 5 565.It Sy tmac/ 566text processing macros; 567see 568.Xr nroff 1 569and 570.Xr troff 1 571.It Sy zoneinfo/ 572timezone configuration information; 573see 574.Xr tzfile 5 575.El 576.Pp 577.El 578.Pp 579.It Sy /usr/src/ 580.Nx 581and local source files 582.Pp 583.Bl -tag -width "domestic/" -compact 584.It Sy bin/ 585source for utilities/files in 586.Pa /bin 587.It Sy distrib/ 588tools and data-files for making distributions 589.It Sy crypto/ 590cryptographic source, which may have import or export restrictions 591.It Sy dist/ 592third-party 593.Sq virgin 594source code, referenced by other parts of the source tree 595.It Sy etc/ 596source (usually example files) for files in 597.Pa /etc 598.It Sy games/ 599source for utilities/files in 600.Pa /usr/games 601.It Sy gnu/ 602source for programs covered by the 603.Tn GNU 604license (or similar) 605.It Sy include/ 606source for files in 607.Pa /usr/include 608.It Sy lib/ 609source for libraries in 610.Pa /usr/lib 611.It Sy libexec/ 612source for utilities/files in 613.Pa /usr/libexec 614.It Sy regress/ 615various regression tests 616.It Sy sbin/ 617source for utilities/files in 618.Pa /sbin 619.It Sy share/ 620source for files in 621.Pa /usr/share 622.Pp 623.Bl -tag -width "doc/" -compact 624.It Sy doc/ 625.Pp 626.Bl -tag -width "papers/" -compact 627.It Sy papers/ 628source for various Berkeley technical papers 629.It Sy psd/ 630source for Programmer's Supplementary Documents 631.It Sy smm/ 632source for System Manager's Manual 633.It Sy usd/ 634source for User's Supplementary Documents 635.Pp 636.El 637.El 638.It Sy sys/ 639kernel source files 640.Pp 641.Bl -tag -width "gdbscripts/" -compact 642.It Sy adosfs/ 643AmigaDOS file-system support; see 644.Xr mount_ados 8 645.It Sy arch/ 646.Pp 647.Bl -tag -width "amigappc/" -compact 648.It Sy alpha/ 649support for the Digital Equipment Corp. Alpha architecture 650.It Sy amiga/ 651support for the Amiga architecture 652.It Sy amigappc/ 653support for the PowerPC based Amiga architecture 654.It Sy arc/ 655support for the ARC specification compliant systems. 656.It Sy arm26/ 657support for ARM2 and ARM3 based systems 658.It Sy arm32/ 659support for the ARM32 architecture 660.It Sy atari/ 661support for the Atari architecture 662.It Sy bebox/ 663support for the Be Inc. BeBox architecture 664.It Sy cobalt/ 665support for the Cobalt Networks MIPS Microserver architecture 666.It Sy evbsh3/ 667support for the SH3 based evaluation boards 668.It Sy hp300/ 669support for the Hewlett-Packard 9000/300 68000-based workstations 670.It Sy hpcmips/ 671support for the MIPS based WinCE hand-held devices 672.It Sy i386/ 673support for the Intel 386/486/Pentium/etc. workstations 674.It Sy luna68k/ 675support for the Omron LUNA 68000-based workstations 676.It Sy m68k/ 677general support for the 68000 processor 678.It Sy mac68k/ 679support for the Apple Computer 68000-based workstations 680.It Sy macppc/ 681support for the Apple Computer PowerPC-based workstations 682.It Sy mips/ 683general support for MIPS architectures 684.It Sy mipsco/ 685support for Mips Computer Systems Inc. architecture 686.It Sy mmeye/ 687support for the Brains Inc. SH3 based mmEye multimedia server 688.It Sy mvme68k/ 689support for the VME 68000-based cards 690.It Sy news68k/ 691support for the Sony NEWS 68000-based workstations 692.It Sy newsmips/ 693support for the Sony NEWS MIPS-based workstations 694.It Sy next68k/ 695support for the NeXT 68000-based workstations 696.It Sy ofppc/ 697support for Open Firmware PowerPC workstations 698.It Sy pc532/ 699support for the pc532 architecture 700.It Sy pmax/ 701support for the MIPS-based DECstation architecture 702.It Sy powerpc/ 703general support for PowerPC architectures 704.It Sy prep/ 705support for the PowerPC Reference Platform 706.It Sy sgimips/ 707support for the SGI MIPS architecture 708.It Sy sh3/ 709general support for SH3 architectures 710.It Sy sparc/ 711support for the Sun Microsystems SPARC architecture 712.It Sy sparc64/ 713support for the Sun Microsystems UltraSPARC architecture 714.It Sy sun3/ 715support for the Sun Microsystems 68000-based architecture 716.It Sy vax/ 717Digital Equipment Corp. VAX architecture 718.It Sy x68k/ 719support for the Sharp X680x0 68000-based workstations 720.El 721.Pp 722.It Sy compat/ 723kernel compatibility modules directory 724.Pp 725.Bl -tag -width "ossaudio/" -compact 726.It Sy common/ 727common compatibility routines, old 728.Bx 4 729and 730.Nx 731routines. 732.It Sy freebsd/ 733support for 734.Fx 735binaries; see 736.Xr compat_freebsd 8 737.It Sy hpux/ 738support for 68000 HP-UX binaries 739.It Sy ibcs2/ 740support for Intel Binary binaries 741.It Sy linux/ 742support for Linux binaries; see 743.Xr compat_linux 8 744.It Sy m68k4k/ 745support for 4Kb page 68000 binaries 746.It Sy netbsd32/ 747support for NetBSD 32-bit binaries on 64 bit platforms with compatible 748CPU families 749.It Sy osf1/ 750support for 751.Tn Digital 752.Ux 753.Po 754formerly 755.Tn OSF/1 756.Pc 757binaries 758.It Sy ossaudio/ 759support for OSS audio 760.It Sy pecoff/ 761support for 762.Tn Win32 763binaries; see 764.Xr compat_pecoff 8 765.It Sy sunos/ 766support for 767.Tn SunOS 4.x 768binaries; see 769.Xr compat_sunos 8 770.It Sy svr4/ 771support for System V Release 4 binaries; see 772.Xr compat_svr4 8 773.It Sy ultrix/ 774support for 775.Tn Ultrix 776binaries 777.It Sy vax1k/ 778support for older Vax binaries that started on a 1 KB boundary 779.El 780.Pp 781.It Sy conf/ 782architecture independent configuration directory 783.It Sy crypto/ 784cryptographic kernel source, which may have import or export restrictions 785.It Sy ddb/ 786in kernel debugger 787.It Sy dev/ 788architecture independent device support 789.It Sy filecorefs/ 790support for the Acorn RISC OS filecore filesystem; see 791.Xr mount_filecore 8 792.It Sy gdbscripts/ 793support for accessing kernel structures from within the debugger 794.Xr gdb 1 . 795.It Sy ipkdb/ 796support for kernel debugging over the network 797.It Sy isofs/ 798support for ISO filesystems 799.Pp 800.Bl -tag -width "cd9660/" -compact 801.It Sy cd9660/ 802support for the ISO-9660 filesystem; see 803.Xr mount_cd9660 8 804.El 805.Pp 806.It Sy kern/ 807support for the high kernel (system calls) 808.It Sy lib/ 809kernel libraries 810.Pp 811.Bl -tag -width "libkern/" -compact 812.It Sy libkern/ 813C library routines used in the kernel 814.It Sy libsa/ 815machine independant stand alone kernel library 816.It Sy libz/ 817compression library 818.El 819.Pp 820.It Sy lkm/ 821loadable kernel modules 822.Pp 823.Bl -tag -width "gdbscripts/" -compact 824.It Sy compat/ 825LKM support compatibility modules; currently unsupported. 826.It Sy netinet/ 827LKM support networking modules 828.Pp 829.Bl -tag -width "if_ipl/" -compact 830.It Sy if_ipl/ 831LKM for IP-Filter 832.El 833.Pp 834.It Sy vfs/ 835LKM support for file systems. 836.El 837.Pp 838.It Sy miscfs/ 839miscellaneous file systems 840.Pp 841.Bl -tag -width "deadfs/" -compact 842.It Sy deadfs/ 843kernel only dead file system 844.It Sy fdesc/ 845file descriptor file system; see 846.Xr mount_fdesc 8 847.It Sy fifofs/ 848POSIX FIFO support 849.It Sy genfs/ 850kernel only generic file system 851.It Sy kernfs/ 852kernel namespace file system; see 853.Xr mount_kernfs 8 854.It Sy nullfs/ 855loop back file system; see 856.Xr mount_null 8 857.It Sy overlay/ 858overlay file system; see 859.Xr mount_overlay 8 860.It Sy portal/ 861portal file system; see 862.Xr mount_portal 8 863.It Sy procfs/ 864process file system; see 865.Xr mount_procfs 8 866.It Sy specfs/ 867kernel only special file system 868.It Sy syncfs/ 869kernel trickle sync algorithm 870.It Sy umapfs/ 871user and group re-mapping file system; see 872.Xr mount_umap 8 873.It Sy union/ 874union file system; see 875.Xr mount_union 8 876.El 877.Pp 878.It Sy msdosfs/ 879.Tn MS-DOS 880file system; see 881.Xr mount_msdos 8 882.It Sy net/ 883miscellaneous networking support 884.It Sy netatalk/ 885AppleTalk networking support 886.It Sy netccitt/ 887CCITT networking support 888.It Sy netinet/ 889IP networking support 890.It Sy netinet6/ 891IPv6 networking support 892.It Sy netiso/ 893ISO networking support 894.It Sy netkey/ 895Key database for IPsec networking support 896.It Sy netnatm/ 897ATM networking support 898.It Sy netns/ 899XNS networking support 900.It Sy nfs/ 901NFS support 902.It Sy ntfs/ 903NTFS filesystem support 904.It Sy stand/ 905kernel standalone support 906.It Sy sys/ 907kernel (and system) include files 908.It Sy ufs/ 909local filesystem support 910.Pp 911.Bl -tag -width "ffs/" -compact 912.It Sy ffs/ 913the Berkeley Fast File System 914.It Sy lfs/ 915the log-structured file system 916.It Sy mfs/ 917the in-memory file system 918.It Sy ufs/ 919shared 920.Ux 921file system support 922.El 923.It Sy uvm/ 924UVM virtual memory system 925.It Sy vm/ 926virtual memory support 927.El 928.It Sy usr.bin/ 929source for utilities/files in 930.Pa /usr/bin 931.It Sy usr.sbin/ 932source for utilities/files in 933.Pa /usr/sbin 934.El 935.It Sy /var/ 936multi-purpose log, temporary, transient, and spool files 937.Pp 938.Bl -tag -width "preserve/" -compact 939.It Sy account/ 940system accounting files 941.Pp 942.Bl -tag -width "acct" -compact 943.It Sy acct 944execution accounting file; 945see 946.Xr acct 5 947.El 948.Pp 949.It Sy at/ 950timed command scheduling files; 951see 952.Xr at 1 953.It Sy backups/ 954miscellaneous backup files, largely of files found in 955.Pa /etc 956.It Sy crash/ 957system crash dumps; see 958.Xr savecore 8 959.It Sy cron/ 960scheduled commands configuration files; see 961.Xr cron 8 962.It Sy db/ 963miscellaneous automatically generated system-specific database files 964.It Sy games/ 965miscellaneous game status and log files 966.It Sy heimdal/ 967Kerberos 5 KDC database; see 968.Xr kdc 8 969.It Sy log/ 970miscellaneous system log files 971.Pp 972.Bl -tag -width "monthly.out" -compact 973.It Sy amd.* 974.Xr amd 8 975logs 976.It Sy daily.out 977output of the last run of the 978.Pa /etc/daily 979script 980.It Sy ftp.* 981.Xr ftp 1 982logs 983.It Sy kerberos.* 984.Xr kerberos 1 985logs 986.It Sy lastlog 987system last time logged in log; see 988.Xr utmp 5 989.It Sy lpd-errs.* 990printer daemon error logs; see 991.Xr lpd 8 992.It Sy maillog.* 993.Xr sendmail 8 994log files 995.It Sy messages.* 996general system information log 997.It Sy monthly.out 998output of the last run of the 999.Pa /etc/monthly 1000script 1001.It Sy secure 1002sensitive security information log 1003.It Sy sendmail.st 1004.Xr sendmail 8 1005statistics 1006.It Sy timed.* 1007.Xr timed 8 1008logs 1009.It Sy weekly.out 1010output of the last run of the 1011.Pa /etc/weekly 1012script 1013.It Sy wtmp 1014login/logout log; 1015see 1016.Xr utmp 5 1017.El 1018.Pp 1019.It Sy mail/ 1020user system mailboxes 1021.It Sy msgs/ 1022system messages; see 1023.Xr msgs 1 1024.\" since we use nvi (now called vi) this isn't the place any more, is it? 1025.It Sy pkg/ 1026working files for third party packages 1027.It Sy preserve/ 1028temporary home of files preserved after an accidental death of 1029.Xr ex 1 1030or 1031.Xr vi 1 1032.It Sy quotas/ 1033filesystem quota information 1034.It Sy run/ 1035system information files, rebuilt after each reboot 1036.Pp 1037.Bl -tag -width "utmp" -compact 1038.It Sy utmp 1039database of current users; see 1040.Xr utmp 5 1041.El 1042.Pp 1043.It Sy rwho/ 1044rwho data files; see 1045.Xr rwhod 8 , 1046.Xr rwho 1 , 1047and 1048.Xr ruptime 1 1049.It Sy spool/ 1050miscellaneous printer and mail system spooling directories 1051.Pp 1052.Bl -tag -width "uucppublic/" -compact 1053.It Sy ftp/ 1054commonly 1055.Dq ~ftp , 1056the anonymous ftp root directory; see 1057.Xr ftpd 8 1058.It Sy mqueue/ 1059undelivered mail queue; 1060see 1061.Xr sendmail 8 1062.It Sy news/ 1063Network news archival and spooling directories 1064.It Sy output/ 1065printer spooling directories 1066.It Sy uucp/ 1067uucp spool directory 1068.It Sy uucppublic/ 1069commonly 1070.Dq ~uucp , 1071the uucp public temporary directory; see 1072.Xr uucp 1 1073.El 1074.Pp 1075.It Sy tmp/ 1076temporary files that are not discarded between system reboots 1077.Pp 1078.Bl -tag -width "vi.recover/" -compact 1079.It Sy vi.recover/ 1080recovery directory for new 1081.Xr vi 1 1082.El 1083.It Sy yp/ 1084Databases and configuration for the NIS (YP) system; see 1085.Xr nis 8 . 1086.El 1087.El 1088.Sh SEE ALSO 1089.Xr apropos 1 , 1090.Xr ls 1 , 1091.Xr whatis 1 , 1092.Xr whereis 1 , 1093.Xr which 1 1094.Sh HISTORY 1095A 1096.Nm 1097manual page appeared in 1098.At v7 . 1099