1.\" $NetBSD: hier.7,v 1.26 2000/06/24 11:08:49 soren 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 June 1, 1994 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.Bl -tag -width "/altroot/" 45.It Sy \&/ 46root directory of the system 47.It Sy /COPYRIGHT 48system copyright notice 49.It Sy "/[a-z]" 50user filesystems 51.It Sy /altroot/ 52alternate root filesystem, in case of disaster 53.It Sy /amd/ 54home directories mount point; see 55.Xr amd 8 56.It Sy /bin/ 57utilities used in both single and multi-user environments 58.It Sy /dev/ 59block, character and other special device files 60.Pp 61.Bl -tag -width "MAKEDEV" -compact 62.It Sy MAKEDEV 63script for creating device files; 64see 65.Xr makedev 8 66.It Sy console 67the computer's console device 68.It Sy fd/ 69file descriptor files; 70see 71.Xr fd 4 72.It Sy drum 73system swap space; see 74.Xr drum 4 75.It Sy klog 76kernel logging device; see 77.Xr syslog 3 78.It Sy kmem 79kernel virtual memory device; see 80.Xr mem 4 81.It Sy log 82.Ux 83domain datagram log socket; see 84.Xr syslogd 8 85.It Sy mem 86kernel physical memory device; see 87.Xr mem 4 88.It Sy stderr 89.It Sy stdin 90.It Sy stdout 91file descriptor files; 92see 93.Xr fd 4 94.It Sy null 95the null device; see 96.Xr null 4 97.It Sy tty 98process' controlling terminal device; see 99.Xr tty 4 100.El 101.It Sy /dump/ 102online 103.Xr dump 8 104repository 105.It Sy /etc/ 106system configuration files and scripts 107.Pp 108.Bl -tag -width "master.passwd" -compact 109.It Sy amd* 110configuration files for 111.Xr amd 8 112.It Sy changelist 113files backed up by the security script 114.It Sy crontab 115schedule used by the 116.Xr cron 8 117daemon 118.It Sy csh.cshrc 119.It Sy csh.login 120.It Sy csh.logout 121system-wide scripts for 122.Xr csh 1 123.It Sy daily 124script run each day by 125.Xr cron 8 126.It Sy disklabels/ 127backup disklabels; 128see 129.Xr disklabel 8 130.It Sy disktab 131disk description file, see 132.Xr disktab 5 133.It Sy dm.conf 134dungeon master configuration; see 135.Xr dm.conf 5 136.It Sy dumpdates 137dump history; see 138.Xr dump 8 139.It Sy exports 140filesystem export information; see 141.Xr mountd 8 142.It Sy fstab 143filesystem information; see 144.Xr fstab 5 145and 146.Xr mount 8 147.It Sy ftpusers 148users denied 149.Xr ftp 1 150access; see 151.Xr ftpd 8 152.It Sy ftpwelcome 153.Xr ftp 1 154initial message; see 155.Xr ftpd 8 156.It Sy gettytab 157terminal configuration database; see 158.Xr gettytab 5 159.It Sy group 160group permissions file; see 161.Xr group 5 162.It Sy hosts 163host name database backup for 164.Xr named 8 ; 165see 166.Xr hosts 5 167.It Sy hosts.equiv 168trusted machines with equivalent user ID's 169.It Sy hosts.lpd 170trusted machines with printing privileges 171.It Sy inetd.conf 172Internet server configuration file; see 173.Xr inetd 8 174.It Sy kerberosIV/ 175configuration files for the kerberos version IV; 176see 177.Xr kerberos 1 178.It Sy localtime 179local timezone information; 180see 181.Xr ctime 3 182.It Sy mail/ 183configuration files for 184.Xr sendmail 8 185.Bp 186.Bl -tag -width "sendmail.*" -compact 187.It Sy aliases* 188name alias files 189.It Sy sendmail.* 190.Xr sendmail 8 191configuration information 192.El 193.It Sy mail.rc 194system-wide initialization script for 195.Xr mail 1 196.It Sy man.conf 197configuration file for 198.Xr man 1 ; 199see 200.Xr man.conf 5 201.It Sy master.passwd 202.It Sy passwd 203.It Sy pwd.db 204.It Sy spwd.db 205password files and their databases; see 206.Xr pwd_mkdb 8 207.It Sy mk.conf 208optional file containing 209.Xr make 1 210variables, read by pkgsrc and the system sources. 211.It Sy monthly 212script run each month by 213.Xr cron 8 214.It Sy motd 215system message of the day 216.It Sy mtree/ 217mtree configuration files; 218see 219.Xr mtree 8 220.It Sy named.* 221.It Sy namedb/ 222named configuration files and databases; 223see 224.Xr named 8 225.It Sy netgroup 226network groups; see 227.Xr netgroup 5 228.It Sy netstart 229network startup script 230.It Sy networks 231network name data base; see 232.Xr networks 5 233.It Sy phones 234remote host phone number data base; see 235.Xr phones 5 236.It Sy printcap 237system printer configuration; see 238.Xr printcap 5 239.It Sy protocols 240protocol name database; see 241.Xr protocols 5 242.It Sy rc 243.It Sy rc.shutdown 244.It Sy rc.local 245.It Sy rc.d/ 246system startup and shutdown scripts; see 247.Xr rc 8 248and 249.Xr rc.d 8 250.It Sy remote 251remote host description file; see 252.Xr remote 5 253.It Sy security 254daily (in)security script run by 255.Xr cron 8 256.It Sy services 257service name data base; see 258.Xr services 5 259.It Sy shells 260list of permitted shells; see 261.Xr shells 5 262.It Sy sliphome 263slip login/logout scripts; see 264.Xr slattach 8 265.It Sy syslog.conf 266.Xr syslogd 8 267configuration file; see 268.Xr syslog.conf 5 269.It Sy termcap 270terminal type database; see 271.Xr termcap 3 272.It Sy ttys 273terminal initialization information; see 274.Xr ttys 5 275.It Sy uucp/ 276UUCP configuration files; see 277.Xr uucp 1 278and 279.Xr uucico 8 . 280.It Sy weekly 281script run each week by 282.Xr cron 8 283.El 284.It Sy /home/ 285mount point for the automounter; see 286.Xr amd 8 287.It Sy /mnt/ 288empty directory commonly used by 289system administrators as a temporary mount point 290.It Sy /netbsd 291pure kernel executable (the operating system loaded into memory 292at boot time). 293.It Sy /root/ 294home directory for the super-user 295.Pp 296.Bl -tag -width ".profile" -compact 297.It Sy \&.rhosts 298super-user id mapping between machines 299.It Sy \&.cshrc 300super-user start-up file 301.It Sy \&.login 302super-user start-up file 303.It Sy \&.profile 304super-user start-up file 305.El 306.ne 1i 307.It Sy /sbin/ 308system programs and administration utilities 309used in both single-user and multi-user environments 310.It Sy /stand/ 311programs used in a standalone environment 312.It Sy /sys 313symbolic link to the operating system source 314.It Sy /tmp/ 315temporary files, usually a 316.Xr mfs 8 317memory-based filesystem (the contents 318of /tmp are usually NOT preserved across a system reboot) 319.It Sy /usr/ 320contains the majority of the system utilities and files 321.Pp 322.Bl -tag -width "libdata/" -compact 323.It Sy X11R6/ 324X11 files 325.Pp 326.Bl -tag -width "include/" -compact 327.It Sy bin/ 328X11 binaries 329.It Sy include/ 330X11 include files 331.It Sy lib/ 332X11 libraries 333.El 334.Pp 335.It Sy bin/ 336common utilities, programming tools, and applications 337.It Sy games/ 338the important stuff 339.It Sy include/ 340standard C include files 341.Pp 342.Bl -tag -width "kerberosIV/" -compact 343.It Sy arpa/ 344include files for Internet service protocols 345.It Sy g++/ 346include files for the C++ compiler 347.It Sy kerberosIV/ 348include files for kerberos authentication package; 349see 350.Xr kerberos 1 351.It Sy machine/ 352machine specific include files 353.It Sy net/ 354.It Sy netatalk/ 355C include files for AppleTalk protocols 356miscellaneous network include files; 357see 358.Xr atalk 4 359.It Sy netccitt/ 360CCITT networking include files 361.It Sy netinet/ 362include files for Internet standard protocols; see 363.Xr inet 4 364.It Sy netinet6/ 365include files for Internet protocol version 6; see 366.Xr inet6 4 367.It Sy netiso/ 368include files for ISO standard protocols; see 369.Xr iso 4 370.It Sy netkey/ 371include files for secret key management, used for security protocols; see 372.Xr ipsec 4 373.It Sy natm/ 374C include files for native mode ATM 375.It Sy netns/ 376C include files for XNS standard protocols; see 377.Xr ns 4 378.It Sy nfs/ 379C include files for NFS (Network File System) 380.It Sy protocols/ 381C include files for Berkeley service protocols 382.It Sy sys/ 383system C include files (kernel data structures) 384.It Sy ufs/ 385C include files for UFS (The U-word File System) 386.El 387.Pp 388.It Sy lib/ 389archive, profiled, position independant archive, and shared libraries 390.It Sy libdata/ 391miscellaneous utility data files 392.It Sy libexec/ 393system daemons & system utilities (executed by other programs) 394.Pp 395.Bl -tag -width "uucp/" -compact 396.It Sy uucp/ 397UUCP binaries and scripts (historically placed; to be moved) 398.El 399.Pp 400.It Sy local/ 401local executables, libraries, etc. 402.Pp 403.Bl -tag -width "include/" -compact 404.It Sy bin/ 405local binaries 406.It Sy include/ 407local include files 408.It Sy libexec/ 409local daemons 410.It Sy libdata/ 411local data files 412.El 413.Pp 414.It Sy mdec/ 415boot blocks, etc. 416.It Sy pkg/ 417packages maintained by groups other than the 418.Nx 419Project. 420.Pp 421.Bl -tag -width "include/" -compact 422.It Sy bin/ 423contributed binaries 424.It Sy sbin/ 425contributed system utilities 426.It Sy include/ 427contributed include files 428.It Sy libexec/ 429contributed daemons 430.It Sy libdata/ 431contributed data files 432.El 433.Pp 434.It Sy pkgsrc/ 435build descriptions ("packages") for the 436.Nx 437packages system. 438.Pp 439.Bl -tag -width "distfiles" -compact 440.It Sy distfiles 441Where unchanged source archives are fetched to/stored 442.It Sy packages 443Where compiled binary packages are stored 444.El 445.Pp 446There are also several other subdirectories which contain packages of 447a certain category, e.g. archivers, graphics, ... 448.Pp 449.It Sy obj/ 450architecture-specific target tree produced by building the 451.Pa /usr/src 452tree; normally a symbolic link or mounted filesystem 453.It Sy sbin/ 454system daemons and system utilities (normally executed by the super-user) 455.It Sy share/ 456architecture-independent text files 457.Pp 458.Bl -tag -width "calendar/" -compact 459.It Sy calendar/ 460a variety of calendar files; see 461.Xr calendar 1 462.It Sy dict/ 463word lists; 464see 465.Xr look 1 466and 467.Xr spell 1 468.Pp 469.Bl -tag -width "special/" -compact 470.It Sy words 471common words 472.It Sy web2 473words of Webster's 2nd International 474.It Sy papers/ 475reference databases; 476see 477.Xr refer 1 478.It Sy special/ 479custom word lists; 480see 481.Xr spell 1 482.El 483.Pp 484.It Sy doc/ 485miscellaneous documentation; source for most of the printed 486.Bx 4.3 487manuals (available 488from the 489.Tn USENIX 490association) 491.It Sy games/ 492text files used by various games 493.It Sy lkm/ 494documentation on the loadable kernel modules interface 495.It Sy man/ 496formatted manual pages 497.It Sy me/ 498macros for use with the 499.Xr me 7 500macro package 501.It Sy misc/ 502miscellaneous system-wide text files 503.Pp 504.Bl -tag -width "termcap" -compact 505.It Sy termcap 506terminal characteristics database; 507see 508.Xr termcap 5 509.El 510.Pp 511.It Sy mk/ 512include files for 513.Xr make 1 514.It Sy ms/ 515macros for use with the 516.Xr ms 7 517macro package 518.It Sy skel/ 519sample initialization files for new user accounts 520.It Sy tabset/ 521tab description files for a variety of terminals, used in 522the termcap file; 523see 524.Xr termcap 5 525.It Sy tmac/ 526text processing macros; 527see 528.Xr nroff 1 529and 530.Xr troff 1 531.It Sy zoneinfo/ 532timezone configuration information; 533see 534.Xr tzfile 5 535.El 536.Pp 537.El 538.Pp 539.It Sy /usr/src/ 540.Bx 4 541and local source files 542.Pp 543.Bl -tag -width "domestic/" -compact 544.It Sy bin/ 545source for utilities/files in 546.Pa /bin 547.It Sy distrib/ 548tools and data-files for making distributions 549.It Sy domestic/ 550source covered by US ITAR export restrictions 551.It Sy etc/ 552source (usually example files) for files in 553.Pa /etc 554.It Sy games/ 555source for utilities/files in 556.Pa /usr/games 557.It Sy include/ 558source for files in 559.Pa /usr/include 560.It Sy lib/ 561source for libraries in 562.Pa /usr/lib 563.It Sy libexec/ 564source for utilities/files in 565.Pa /usr/libexec 566.It Sy sbin/ 567source for utilities/files in 568.Pa /sbin 569.It Sy share/ 570source for files in 571.Pa /usr/share 572.Pp 573.Bl -tag -width "doc/" -compact 574.It Sy doc/ 575.Pp 576.Bl -tag -width "papers/" -compact 577.It Sy papers/ 578source for various Berkeley technical papers 579.It Sy psd/ 580source for Programmer's Supplementary Documents 581.It Sy smm/ 582source for System Manager's Manual 583.It Sy usd/ 584source for User's Supplementary Documents 585.Pp 586.El 587.El 588.It Sy sys/ 589kernel source files 590.Pp 591.Bl -tag -width "gdbscripts/" -compact 592.It Sy adosfs/ 593AmigaDOS file-system support; see 594.Xr mount_ados 8 595.It Sy arch/ 596.Pp 597.Bl -tag -width "powerpc/" -compact 598.It Sy alpha/ 599support for the Digital Equipment Corp. Alpha architecture 600.It Sy amiga/ 601support for the Amiga architecture 602.It Sy arc/ 603support for the ARC specification compliant systems. 604.It Sy arm26/ 605support for ARM2 and ARM3 based systems 606.It Sy arm32/ 607support for the ARM32 architecture 608.It Sy atari/ 609support for the Atari architecture 610.It Sy bebox/ 611support for the Be Inc. BeBox architecture 612.It Sy cobalt/ 613support for the Cobalt Networks MIPS Microserver architecture 614.It Sy hp300/ 615support for the Hewlett-Packard 9000/300 68000-based workstations 616.It Sy i386/ 617support for the Intel 386/486/Pentium/etc. workstations 618.It Sy m68k/ 619general support for the 68000 processor 620.It Sy mac68k/ 621support for the Apple Computer 68000-based workstations 622.It Sy mips/ 623general support for MIPS architectures 624.It Sy mvme68k/ 625support for the VME 68000-based cards 626.It Sy pc532/ 627support for the pc532 architecture 628.It Sy pmax/ 629support for the MIPS-based DECstation architecture 630.It Sy powerpc/ 631support for the PowerPC architecture 632.It Sy sgimips/ 633support for the SGI MIPS architecture 634.It Sy sparc/ 635support for the Sun Microsystems SPARC architecture 636.It Sy sun3/ 637support for the Sun Microsystems 68000-based architecture 638.It Sy sun3x/ 639more support for the Sun Microsystems 68000-based architecture 640.It Sy vax/ 641Digital Equipment Corp. VAX architecture 642.It Sy x68k/ 643support for the x68k architecture 644.El 645.Pp 646.It Sy compat/ 647kernel compatibility modules directory 648.Pp 649.Bl -tag -width "ossaudio/" -compact 650.It Sy common/ 651common compatibility routines, old 652.Bx 4 653and 654.Nx 655routines. 656.It Sy freebsd/ 657support for 658.Fx 659binaries; see 660.Xr compat_freebsd 8 661.It Sy hpux/ 662support for 68000 HP-UX binaries 663.It Sy ibcs2/ 664support for Intel Binary binaries 665.It Sy linux/ 666support for Linux binaries; see 667.Xr compat_linux 8 668.It Sy m68k4k/ 669support for 4Kb page 68000 binaries 670.It Sy osf1/ 671support for 672.Tn Digital 673.Ux 674.Po 675formerly 676.Tn OSF/1 677.Pc 678binaries 679.It Sy ossaudio/ 680support for OSS audio 681.It Sy sunos/ 682support for 683.Tn SunOS 4.x 684binaries; see 685.Xr compat_sunos 8 686.It Sy svr4/ 687support for System V Release 4 binaries; see 688.Xr compat_svr4 8 689.It Sy ultrix/ 690support for 691.Tn Ultrix 692binaries 693.El 694.Pp 695.It Sy conf/ 696architecture independent configuration directory 697.It Sy ddb/ 698in kernel debugger 699.It Sy dev/ 700architecture independent device support 701.It Sy gdbscripts/ 702support for accessing kernel structures from within the debugger 703.Xr gdb 1 . 704.It Sy ipkdb/ 705support for kernel debugging over the network 706.It Sy isofs/ 707support for ISO filesystems 708.Pp 709.Bl -tag -width "cd9660/" -compact 710.It Sy cd9660/ 711support for the ISO-9660 filesystem; see 712.Xr mount_cd9660 8 713.El 714.Pp 715.It Sy kern/ 716support for the high kernel (system calls) 717.It Sy lib/ 718kernel libraries 719.Pp 720.Bl -tag -width "libkern/" -compact 721.It Sy libkern/ 722C library routines used in the kernel 723.It Sy libsa/ 724machine independant stand alone kernel library 725.It Sy libz/ 726compression library 727.El 728.Pp 729.It Sy lkm/ 730loadable kernel modules 731.Pp 732.Bl -tag -width "netinet/" -compact 733.It Sy compat/ 734LKM support compatibility modules; currently unsupported. 735.It Sy netinet/ 736LKM support networking modules 737.Pp 738.Bl -tag -width "if_ipl/" -compact 739.It Sy if_ipl/ 740LKM for IP-Filter 741.El 742.Pp 743.It Sy vfs/ 744LKM support for file systems. 745.El 746.Pp 747.It Sy miscfs/ 748miscellaneous file systems 749.Pp 750.Bl -tag -width "deadfs/" -compact 751.It Sy deadfs/ 752kernel only dead file system 753.It Sy fdesc/ 754file descriptor file system; see 755.Xr mount_fdesc 8 756.It Sy fifofs/ 757POSIX FIFO support 758.It Sy genfs/ 759kernel only generic file system 760.It Sy kernfs/ 761kernel namespace file system; see 762.Xr mount_kernfs 8 763.It Sy nullfs/ 764loop back file system; see 765.Xr mount_null 8 766.It Sy portal/ 767portal file system; see 768.Xr mount_portal 8 769.It Sy procfs/ 770process file system; see 771.Xr mount_procfs 8 772.It Sy specfs/ 773kernel only special file system 774.It Sy umapfs/ 775user and group re-mapping file system; see 776.Xr mount_umap 8 777.It Sy union/ 778union file system; see 779.Xr mount_union 8 780.El 781.Pp 782.It Sy msdosfs/ 783.Tn MS-DOS 784file system; see 785.Xr mount_msdos 8 786.It Sy net/ 787miscellaneous networking support 788.It Sy netccitt/ 789CCITT 790networking support 791.It Sy netinet/ 792TCP/IP networking support 793.It Sy netiso/ 794ISO 795networking support 796.It Sy netnatm/ 797ATM networking support 798.It Sy netns/ 799XNS networking support 800.It Sy nfs/ 801NFS support 802.It Sy stand/ 803kernel standalone support 804.It Sy sys/ 805kernel (and system) include files 806.It Sy ufs/ 807local filesystem support 808.Pp 809.Bl -tag -width "ffs/" -compact 810.It Sy ffs/ 811the Berkeley Fast File System 812.It Sy lfs/ 813the log-structured file system 814.It Sy mfs/ 815the in-memory file system 816.It Sy ufs/ 817shared 818.Ux 819file system support 820.El 821.It Sy vm/ 822virtual memory support 823.El 824.It Sy usr.bin/ 825source for utilities/files in 826.Pa /usr/bin 827.It Sy usr.sbin/ 828source for utilities/files in 829.Pa /usr/sbin 830.El 831.It Sy /var/ 832multi-purpose log, temporary, transient, and spool files 833.Pp 834.Bl -tag -width "preserve/" -compact 835.It Sy account/ 836system accounting files 837.Pp 838.Bl -tag -width "acct" -compact 839.It Sy acct 840execution accounting file; 841see 842.Xr acct 5 843.El 844.Pp 845.It Sy at/ 846timed command scheduling files; 847see 848.Xr at 1 849.It Sy backups/ 850miscellaneous backup files, largely of files found in 851.Pa /etc 852.It Sy crash/ 853system crash dumps; see 854.Xr savecore 8 855.It Sy db/ 856miscellaneous automatically generated system-specific database files 857.It Sy games/ 858miscellaneous game status and log files 859.It Sy log/ 860miscellaneous system log files 861.Pp 862.Bl -tag -width "monthly.out" -compact 863.It Sy amd.* 864.Xr amd 8 865logs 866.It Sy daily.out 867output of the last run of the 868.Pa /etc/daily 869script 870.It Sy ftp.* 871.Xr ftp 1 872logs 873.It Sy kerberos.* 874.Xr kerberos 1 875logs 876.It Sy lastlog 877system last time logged in log; see 878.Xr utmp 5 879.It Sy lpd-errs.* 880printer daemon error logs; see 881.Xr lpd 8 882.It Sy maillog.* 883.Xr sendmail 8 884log files 885.It Sy messages.* 886general system information log 887.It Sy monthly.out 888output of the last run of the 889.Pa /etc/monthly 890script 891.It Sy secure 892sensitive security information log 893.It Sy sendmail.st 894.Xr sendmail 8 895statistics 896.It Sy timed.* 897.Xr timed 8 898logs 899.It Sy weekly.out 900output of the last run of the 901.Pa /etc/weekly 902script 903.It Sy wtmp 904login/logout log; 905see 906.Xr utmp 5 907.El 908.Pp 909.It Sy mail/ 910user system mailboxes 911.It Sy msgs/ 912system messages; see 913.Xr msgs 1 914.\" since we use nvi (now called vi) this isn't the place any more, is it? 915.It Sy preserve/ 916temporary home of files preserved after an accidental death of 917.Xr ex 1 918or 919.Xr vi 1 920.It Sy quotas/ 921filesystem quota information 922.It Sy run/ 923system information files, rebuilt after each reboot 924.Pp 925.Bl -tag -width "utmp" -compact 926.It Sy utmp 927database of current users; see 928.Xr utmp 5 929.El 930.Pp 931.It Sy rwho/ 932rwho data files; see 933.Xr rwhod 8 , 934.Xr rwho 1 , 935and 936.Xr ruptime 1 937.It Sy spool/ 938miscellaneous printer and mail system spooling directories 939.Pp 940.Bl -tag -width "uucppublic/" -compact 941.It Sy ftp/ 942commonly 943.Dq ~ftp , 944the anonymous ftp root directory; see 945.Xr ftpd 8 946.It Sy mqueue/ 947undelivered mail queue; 948see 949.Xr sendmail 8 950.It Sy news/ 951Network news archival and spooling directories 952.It Sy output/ 953printer spooling directories 954.It Sy uucp/ 955uucp spool directory 956.It Sy uucppublic/ 957commonly 958.Dq ~uucp , 959the uucp public temporary directory; see 960.Xr uucp 1 961.El 962.Pp 963.It Sy tmp/ 964temporary files that are not discarded between system reboots 965.Pp 966.Bl -tag -width "vi.recover/" -compact 967.It Sy vi.recover/ 968recovery directory for new 969.Xr vi 1 970.El 971.El 972.El 973.Sh SEE ALSO 974.Xr apropos 1 , 975.Xr ls 1 , 976.Xr whatis 1 , 977.Xr whereis 1 , 978.Xr which 1 979.Sh HISTORY 980A 981.Nm 982manual page appeared in 983.At v7 . 984