1.\" $NetBSD: hier.7,v 1.21 2000/03/06 14:06:09 enami 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 aliases* 110name alias files for 111.Xr sendmail 8 112.It Sy amd* 113configuration files for 114.Xr amd 8 115.It Sy changelist 116files backed up by the security script 117.It Sy crontab 118schedule used by the 119.Xr cron 8 120daemon 121.It Sy csh.cshrc 122.It Sy csh.login 123.It Sy csh.logout 124system-wide scripts for 125.Xr csh 1 126.It Sy daily 127script run each day by 128.Xr cron 8 129.It Sy disklabels/ 130backup disklabels; 131see 132.Xr disklabel 8 133.It Sy disktab 134disk description file, see 135.Xr disktab 5 136.It Sy dm.conf 137dungeon master configuration; see 138.Xr dm.conf 5 139.It Sy dumpdates 140dump history; see 141.Xr dump 8 142.It Sy exports 143filesystem export information; see 144.Xr mountd 8 145.It Sy fstab 146filesystem information; see 147.Xr fstab 5 148and 149.Xr mount 8 150.It Sy ftpusers 151users denied 152.Xr ftp 1 153access; see 154.Xr ftpd 8 155.It Sy ftpwelcome 156.Xr ftp 1 157initial message; see 158.Xr ftpd 8 159.It Sy gettytab 160terminal configuration database; see 161.Xr gettytab 5 162.It Sy group 163group permissions file; see 164.Xr group 5 165.It Sy hosts 166host name database backup for 167.Xr named 8 ; 168see 169.Xr hosts 5 170.It Sy hosts.equiv 171trusted machines with equivalent user ID's 172.It Sy hosts.lpd 173trusted machines with printing privileges 174.It Sy inetd.conf 175Internet server configuration file; see 176.Xr inetd 8 177.It Sy kerberosIV/ 178configuration files for the kerberos version IV; 179see 180.Xr kerberos 1 181.It Sy localtime 182local timezone information; 183see 184.Xr ctime 3 185.It Sy mail.rc 186system-wide initialization script for 187.Xr mail 1 188.It Sy man.conf 189configuration file for 190.Xr man 1 ; 191see 192.Xr man.conf 5 193.It Sy master.passwd 194.It Sy passwd 195.It Sy pwd.db 196.It Sy spwd.db 197password files and their databases; see 198.Xr pwd_mkdb 8 199.It Sy mk.conf 200optional file containing 201.Xr make 1 202variables, read by pkgsrc and the system sources. 203.It Sy monthly 204script run each month by 205.Xr cron 8 206.It Sy motd 207system message of the day 208.It Sy mtree/ 209mtree configuration files; 210see 211.Xr mtree 8 212.It Sy named.* 213.It Sy namedb/ 214named configuration files and databases; 215see 216.Xr named 8 217.It Sy netgroup 218network groups; see 219.Xr netgroup 5 220.It Sy netstart 221network startup script 222.It Sy networks 223network name data base; see 224.Xr networks 5 225.It Sy phones 226remote host phone number data base; see 227.Xr phones 5 228.It Sy printcap 229system printer configuration; see 230.Xr printcap 5 231.It Sy protocols 232protocol name database; see 233.Xr protocols 5 234.It Sy rc 235.It Sy rc.local 236system startup files; see 237.Xr rc 8 238.It Sy remote 239remote host description file; see 240.Xr remote 5 241.It Sy security 242daily (in)security script run by 243.Xr cron 8 244.It Sy sendmail.* 245.Xr sendmail 8 246configuration information 247.It Sy services 248service name data base; see 249.Xr services 5 250.It Sy shells 251list of permitted shells; see 252.Xr shells 5 253.It Sy sliphome 254slip login/logout scripts; see 255.Xr slattach 8 256.It Sy syslog.conf 257.Xr syslogd 8 258configuration file; see 259.Xr syslog.conf 5 260.It Sy termcap 261terminal type database; see 262.Xr termcap 3 263.It Sy ttys 264terminal initialization information; see 265.Xr ttys 5 266.It Sy uucp/ 267UUCP configuration files; see 268.Xr uucp 1 269and 270.Xr uucico 8 . 271.It Sy weekly 272script run each week by 273.Xr cron 8 274.El 275.It Sy /home/ 276mount point for the automounter; see 277.Xr amd 8 278.It Sy /mnt/ 279empty directory commonly used by 280system administrators as a temporary mount point 281.It Sy /netbsd 282pure kernel executable (the operating system loaded into memory 283at boot time). 284.It Sy /root/ 285home directory for the super-user 286.Pp 287.Bl -tag -width ".profile" -compact 288.It Sy \&.rhosts 289super-user id mapping between machines 290.It Sy \&.cshrc 291super-user start-up file 292.It Sy \&.login 293super-user start-up file 294.It Sy \&.profile 295super-user start-up file 296.El 297.ne 1i 298.It Sy /sbin/ 299system programs and administration utilities 300used in both single-user and multi-user environments 301.It Sy /stand/ 302programs used in a standalone environment 303.It Sy /sys 304symbolic link to the operating system source 305.It Sy /tmp/ 306temporary files, usually a 307.Xr mfs 8 308memory-based filesystem (the contents 309of /tmp are usually NOT preserved across a system reboot) 310.It Sy /usr/ 311contains the majority of the system utilities and files 312.Pp 313.Bl -tag -width "libdata/" -compact 314.It Sy X11R6/ 315X11 files 316.Pp 317.Bl -tag -width "include/" -compact 318.It Sy bin/ 319X11 binaries 320.It Sy include/ 321X11 include files 322.It Sy lib/ 323X11 libraries 324.El 325.Pp 326.It Sy bin/ 327common utilities, programming tools, and applications 328.It Sy games/ 329the important stuff 330.It Sy include/ 331standard C include files 332.Pp 333.Bl -tag -width "kerberosIV/" -compact 334.It Sy arpa/ 335include files for Internet service protocols 336.It Sy g++/ 337include files for the C++ compiler 338.It Sy kerberosIV/ 339include files for kerberos authentication package; 340see 341.Xr kerberos 1 342.It Sy machine/ 343machine specific include files 344.It Sy net/ 345.It Sy netatalk/ 346C include files for AppleTalk protocols 347miscellaneous network include files; 348see 349.Xr atalk 4 350.It Sy netccitt/ 351CCITT networking include files 352.It Sy netinet/ 353include files for Internet standard protocols; see 354.Xr inet 4 355.It Sy netinet6/ 356include files for Internet protocol version 6; see 357.Xr inet6 4 358.It Sy netiso/ 359include files for ISO standard protocols; see 360.Xr iso 4 361.It Sy netkey/ 362include files for secret key management, used for security protocols; see 363.Xr ipsec 4 364.It Sy natm/ 365C include files for native mode ATM 366.It Sy netns/ 367C include files for XNS standard protocols; see 368.Xr ns 4 369.It Sy nfs/ 370C include files for NFS (Network File System) 371.It Sy protocols/ 372C include files for Berkeley service protocols 373.It Sy sys/ 374system C include files (kernel data structures) 375.It Sy ufs/ 376C include files for UFS (The U-word File System) 377.El 378.Pp 379.It Sy lib/ 380archive, profiled, position independant archive, and shared libraries 381.It Sy libdata/ 382miscellaneous utility data files 383.It Sy libexec/ 384system daemons & system utilities (executed by other programs) 385.Pp 386.Bl -tag -width "uucp/" -compact 387.It Sy uucp/ 388UUCP binaries and scripts (historically placed; to be moved) 389.El 390.Pp 391.It Sy local/ 392local executables, libraries, etc. 393.Pp 394.Bl -tag -width "include/" -compact 395.It Sy bin/ 396local binaries 397.It Sy include/ 398local include files 399.It Sy libexec/ 400local daemons 401.It Sy libdata/ 402local data files 403.El 404.Pp 405.It Sy mdec/ 406boot blocks, etc. 407.It Sy pkg/ 408packages maintained by groups other than the 409.Nx 410Project. 411.Pp 412.Bl -tag -width "include/" -compact 413.It Sy bin/ 414contributed binaries 415.It Sy sbin/ 416contributed system utilities 417.It Sy include/ 418contributed include files 419.It Sy libexec/ 420contributed daemons 421.It Sy libdata/ 422contributed data files 423.El 424.Pp 425.It Sy pkgsrc/ 426build descriptions ("packages") for the 427.Nx 428packages system. 429.Pp 430.Bl -tag -width "distfiles" -compact 431.It Sy distfiles 432Where unchanged source archives are fetched to/stored 433.It Sy packages 434Where compiled binary packages are stored 435.El 436.Pp 437There are also several other subdirectories which contain packages of 438a certain category, e.g. archivers, graphics, ... 439.Pp 440.It Sy bin/ 441contributed binaries 442.It Sy obj/ 443architecture-specific target tree produced by building the 444.Pa /usr/src 445tree; normally a symbolic link or mounted filesystem 446.It Sy sbin/ 447system daemons and system utilities (normally executed by the super-user) 448.It Sy share/ 449architecture-independent text files 450.Pp 451.Bl -tag -width "calendar/" -compact 452.It Sy calendar/ 453a variety of calendar files; see 454.Xr calendar 1 455.It Sy dict/ 456word lists; 457see 458.Xr look 1 459and 460.Xr spell 1 461.Pp 462.Bl -tag -width "special/" -compact 463.It Sy words 464common words 465.It Sy web2 466words of Webster's 2nd International 467.It Sy papers/ 468reference databases; 469see 470.Xr refer 1 471.It Sy special/ 472custom word lists; 473see 474.Xr spell 1 475.El 476.Pp 477.It Sy doc/ 478miscellaneous documentation; source for most of the printed 479.Bx 4.3 480manuals (available 481from the 482.Tn USENIX 483association) 484.It Sy games/ 485text files used by various games 486.It Sy lkm/ 487documentation on the loadable kernel modules interface 488.It Sy man/ 489formatted manual pages 490.It Sy me/ 491macros for use with the 492.Xr me 7 493macro package 494.It Sy misc/ 495miscellaneous system-wide text files 496.Pp 497.Bl -tag -width "termcap" -compact 498.It Sy termcap 499terminal characteristics database; 500see 501.Xr termcap 5 502.El 503.Pp 504.It Sy mk/ 505include files for 506.Xr make 1 507.It Sy ms/ 508macros for use with the 509.Xr ms 7 510macro package 511.It Sy skel/ 512sample initialization files for new user accounts 513.It Sy tabset/ 514tab description files for a variety of terminals, used in 515the termcap file; 516see 517.Xr termcap 5 518.It Sy tmac/ 519text processing macros; 520see 521.Xr nroff 1 522and 523.Xr troff 1 524.It Sy zoneinfo/ 525timezone configuration information; 526see 527.Xr tzfile 5 528.El 529.Pp 530.El 531.Pp 532.It Sy /usr/src/ 533.Bx 4 534and local source files 535.Pp 536.Bl -tag -width "domestic/" -compact 537.It Sy bin/ 538source for utilities/files in 539.Pa /bin 540.It Sy distrib/ 541tools and data-files for making distributions 542.It Sy domestic/ 543source covered by US ITAR export restrictions 544.It Sy etc/ 545source (usually example files) for files in 546.Pa /etc 547.It Sy games/ 548source for utilities/files in 549.Pa /usr/games 550.It Sy include/ 551source for files in 552.Pa /usr/include 553.It Sy lib/ 554source for libraries in 555.Pa /usr/lib 556.It Sy libexec/ 557source for utilities/files in 558.Pa /usr/libexec 559.It Sy sbin/ 560source for utilities/files in 561.Pa /sbin 562.It Sy share/ 563source for files in 564.Pa /usr/share 565.Pp 566.Bl -tag -width "doc/" -compact 567.It Sy doc/ 568.Pp 569.Bl -tag -width "papers/" -compact 570.It Sy papers/ 571source for various Berkeley technical papers 572.It Sy psd/ 573source for Programmer's Supplementary Documents 574.It Sy smm/ 575source for System Manager's Manual 576.It Sy usd/ 577source for User's Supplementary Documents 578.Pp 579.El 580.El 581.It Sy sys/ 582kernel source files 583.Pp 584.Bl -tag -width "gdbscripts/" -compact 585.It Sy adosfs/ 586AmigaDOS file-system support; see 587.Xr mount_ados 8 588.It Sy arch/ 589.Pp 590.Bl -tag -width "powerpc/" -compact 591.It Sy alpha/ 592support for the Digital Equipment Corp. Alpha architecture 593.It Sy amiga/ 594support for the Amiga architecture 595.It Sy arm32/ 596support for the ARM32 architecture 597.It Sy atari/ 598support for the Atari architecture 599.It Sy bebox/ 600support for the Be Inc. BeBox architecture 601.It Sy hp300/ 602support for the Hewlett-Packard 9000/300 68000-based workstations 603.It Sy i386/ 604support for the Intel 386/486/Pentium/etc. workstations 605.It Sy m68k/ 606general support for the 68000 processor 607.It Sy mac68k/ 608support for the Apple Computer 68000-based workstations 609.It Sy mips/ 610general support for MIPS architectures 611.It Sy mvme68k/ 612support for the VME 68000-based cards 613.It Sy pc532/ 614support for the pc532 architecture 615.It Sy pica/ 616support for the Acer PICA architecture 617.It Sy pmax/ 618support for the MIPS-based DECstation architecture 619.It Sy powerpc/ 620support for the PowerPC architecture 621.It Sy sparc/ 622support for the Sun Microsystems SPARC architecture 623.It Sy sun3/ 624support for the Sun Microsystems 68000-based architecture 625.It Sy sun3x/ 626more support for the Sun Microsystems 68000-based architecture 627.It Sy vax/ 628Digital Equipment Corp. VAX architecture 629.It Sy x68k/ 630support for the x68k architecture 631.El 632.Pp 633.It Sy compat/ 634kernel compatibility modules directory 635.Pp 636.Bl -tag -width "ossaudio/" -compact 637.It Sy common/ 638common compatibility routines, old 639.Bx 4 640and 641.Nx 642routines. 643.It Sy freebsd/ 644support for 645.Fx 646binaries; see 647.Xr compat_freebsd 8 648.It Sy hpux/ 649support for 68000 HP-UX binaries 650.It Sy ibcs2/ 651support for Intel Binary binaries 652.It Sy linux/ 653support for Linux binaries; see 654.Xr compat_linux 8 655.It Sy m68k4k/ 656support for 4Kb page 68000 binaries 657.It Sy osf1/ 658support for 659.Tn Digital 660.Ux 661.Po 662formerly 663.Tn OSF/1 664.Pc 665binaries 666.It Sy ossaudio/ 667support for OSS audio 668.It Sy sunos/ 669support for 670.Tn SunOS 4.x 671binaries; see 672.Xr compat_sunos 8 673.It Sy svr4/ 674support for System V Release 4 binaries; see 675.Xr compat_svr4 8 676.It Sy ultrix/ 677support for 678.Tn Ultrix 679binaries 680.El 681.Pp 682.It Sy conf/ 683architecture independent configuration directory 684.It Sy ddb/ 685in kernel debugger 686.It Sy dev/ 687architecture independent device support 688.It Sy gdbscripts/ 689support for accessing kernel structures from within the debugger 690.Xr gdb 1 . 691.It Sy ipkdb/ 692support for kernel debugging over the network 693.It Sy isofs/ 694support for ISO filesystems 695.Pp 696.Bl -tag -width "cd9660/" -compact 697.It Sy cd9660/ 698support for the ISO-9660 filesystem; see 699.Xr mount_cd9660 8 700.El 701.Pp 702.It Sy kern/ 703support for the high kernel (system calls) 704.It Sy lib/ 705kernel libraries 706.Pp 707.Bl -tag -width "libkern/" -compact 708.It Sy libkern/ 709C library routines used in the kernel 710.It Sy libsa/ 711machine independant stand alone kernel library 712.It Sy libz/ 713compression library 714.El 715.Pp 716.It Sy lkm/ 717loadable kernel modules 718.Pp 719.Bl -tag -width "netinet/" -compact 720.It Sy compat/ 721LKM support compatibility modules; currently unsupported. 722.It Sy netinet/ 723LKM support networking modules 724.Pp 725.Bl -tag -width "if_ipl/" -compact 726.It Sy if_ipl/ 727LKM for IP-Filter 728.El 729.Pp 730.It Sy vfs/ 731LKM support for file systems. 732.El 733.Pp 734.It Sy miscfs/ 735miscellaneous file systems 736.Pp 737.Bl -tag -width "deadfs/" -compact 738.It Sy deadfs/ 739kernel only dead file system 740.It Sy fdesc/ 741file descriptor file system; see 742.Xr mount_fdesc 8 743.It Sy fifofs/ 744POSIX FIFO support 745.It Sy genfs/ 746kernel only generic file system 747.It Sy kernfs/ 748kernel namespace file system; see 749.Xr mount_kernfs 8 750.It Sy nullfs/ 751loop back file system; see 752.Xr mount_null 8 753.It Sy portal/ 754portal file system; see 755.Xr mount_portal 8 756.It Sy procfs/ 757process file system; see 758.Xr mount_procfs 8 759.It Sy specfs/ 760kernel only special file system 761.It Sy umapfs/ 762user and group re-mapping file system; see 763.Xr mount_umap 8 764.It Sy union/ 765union file system; see 766.Xr mount_union 8 767.El 768.Pp 769.It Sy msdosfs/ 770.Tn MS-DOS 771file system; see 772.Xr mount_msdos 8 773.It Sy net/ 774miscellaneous networking support 775.It Sy netccitt/ 776CCITT 777networking support 778.It Sy netinet/ 779TCP/IP networking support 780.It Sy netiso/ 781ISO 782networking support 783.It Sy netnatm/ 784ATM networking support 785.It Sy netns/ 786XNS networking support 787.It Sy nfs/ 788NFS support 789.It Sy stand/ 790kernel standalone support 791.It Sy sys/ 792kernel (and system) include files 793.It Sy ufs/ 794local filesystem support 795.Pp 796.Bl -tag -width "ffs/" -compact 797.It Sy ffs/ 798the Berkeley Fast File System 799.It Sy lfs/ 800the log-structured file system 801.It Sy mfs/ 802the in-memory file system 803.It Sy ufs/ 804shared 805.Ux 806file system support 807.El 808.It Sy vm/ 809virtual memory support 810.El 811.It Sy usr.bin/ 812source for utilities/files in 813.Pa /usr/bin 814.It Sy usr.sbin/ 815source for utilities/files in 816.Pa /usr/sbin 817.El 818.It Sy /var/ 819multi-purpose log, temporary, transient, and spool files 820.Pp 821.Bl -tag -width "preserve/" -compact 822.It Sy account/ 823system accounting files 824.Pp 825.Bl -tag -width "acct" -compact 826.It Sy acct 827execution accounting file; 828see 829.Xr acct 5 830.El 831.Pp 832.It Sy at/ 833timed command scheduling files; 834see 835.Xr at 1 836.It Sy backups/ 837miscellaneous backup files, largely of files found in 838.Pa /etc 839.It Sy crash/ 840system crash dumps; see 841.Xr savecore 8 842.It Sy db/ 843miscellaneous automatically generated system-specific database files 844.It Sy games/ 845miscellaneous game status and log files 846.It Sy log/ 847miscellaneous system log files 848.Pp 849.Bl -tag -width "monthly.out" -compact 850.It Sy amd.* 851.Xr amd 8 852logs 853.It Sy daily.out 854output of the last run of the 855.Pa /etc/daily 856script 857.It Sy ftp.* 858.Xr ftp 1 859logs 860.It Sy kerberos.* 861.Xr kerberos 1 862logs 863.It Sy lastlog 864system last time logged in log; see 865.Xr utmp 5 866.It Sy lpd-errs.* 867printer daemon error logs; see 868.Xr lpd 8 869.It Sy maillog.* 870.Xr sendmail 8 871log files 872.It Sy messages.* 873general system information log 874.It Sy monthly.out 875output of the last run of the 876.Pa /etc/monthly 877script 878.It Sy secure 879sensitive security information log 880.It Sy sendmail.st 881.Xr sendmail 8 882statistics 883.It Sy timed.* 884.Xr timed 8 885logs 886.It Sy weekly.out 887output of the last run of the 888.Pa /etc/weekly 889script 890.It Sy wtmp 891login/logout log; 892see 893.Xr utmp 5 894.El 895.Pp 896.It Sy mail/ 897user system mailboxes 898.It Sy msgs/ 899system messages; see 900.Xr msgs 1 901.\" since we use nvi (now called vi) this isn't the place any more, is it? 902.It Sy preserve/ 903temporary home of files preserved after an accidental death of 904.Xr ex 1 905or 906.Xr vi 1 907.It Sy quotas/ 908filesystem quota information 909.It Sy run/ 910system information files, rebuilt after each reboot 911.Pp 912.Bl -tag -width "utmp" -compact 913.It Sy utmp 914database of current users; see 915.Xr utmp 5 916.El 917.Pp 918.It Sy rwho/ 919rwho data files; see 920.Xr rwhod 8 , 921.Xr rwho 1 , 922and 923.Xr ruptime 1 924.It Sy spool/ 925miscellaneous printer and mail system spooling directories 926.Pp 927.Bl -tag -width "uucppublic/" -compact 928.It Sy ftp/ 929commonly 930.Dq ~ftp , 931the anonymous ftp root directory; see 932.Xr ftpd 8 933.It Sy mqueue/ 934undelivered mail queue; 935see 936.Xr sendmail 8 937.It Sy news/ 938Network news archival and spooling directories 939.It Sy output/ 940printer spooling directories 941.It Sy uucp/ 942uucp spool directory 943.It Sy uucppublic/ 944commonly 945.Dq ~uucp , 946the uucp public temporary directory; see 947.Xr uucp 1 948.El 949.Pp 950.It Sy tmp/ 951temporary files that are not discarded between system reboots 952.Pp 953.Bl -tag -width "vi.recover/" -compact 954.It Sy vi.recover/ 955recovery directory for new 956.Xr vi 1 957.El 958.El 959.El 960.Sh SEE ALSO 961.Xr apropos 1 , 962.Xr ls 1 , 963.Xr whatis 1 , 964.Xr whereis 1 , 965.Xr which 1 966.Sh HISTORY 967A 968.Nm 969manual page appeared in 970.At v7 . 971