+.TH HIER 7 UNIX/32V
+.SH NAME
+hier \- file system hierarchy
+.SH DESCRIPTION
+The following outline gives a quick tour through
+a representative directory hierarchy.
+.na
+.nh
+.IP /
+root
+.PD 0
+.IP /dev/
+devices (4)
+.RS
+.IP console
+main console,
+.IR tty (4)
+.IP tty*
+terminals,
+.IR tty (4)
+.IP cat
+phototypesetter
+.IR cat (4)
+.IP rp*
+disks,
+.I rp,
+.IR hp (4)
+.IP rrp*
+raw disks,
+.I rp,
+.IR hp (4)
+.IP ...
+.RE
+.IP /bin/
+utility programs, cf /usr/bin/ (1)
+.RS
+.IP as
+assembler
+.IP cc
+C compiler executive,
+cf /lib/ccom, /lib/cpp, /lib/c2
+.IP ...
+.RE
+.IP /lib/
+object libraries and other stuff, cf /usr/lib/
+.RS
+.IP libc.a
+system calls, standard I/O, etc. (2,3,3S)
+.IP ...
+.IP ccom
+C compiler proper
+.IP cpp
+C preprocessor
+.IP c2
+C code improver
+.IP ...
+.RE
+.IP /etc/
+essential data and dangerous maintenance utilities
+.RS
+.IP passwd
+password file,
+.IR passwd (5)
+.IP group
+group file,
+.IR group (5)
+.IP motd
+message of the day,
+.IR login (1)
+.IP mtab
+mounted file table,
+.IR mtab (5)
+.IP ddate
+dump history,
+.IR dump (1)
+.IP ttys
+properties of terminals,
+.IR ttys (5)
+.IP getty
+part of
+.IR login ,
+.IR getty (8)
+.IP init
+the father of all processes,
+.IR init (8)
+.IP rc
+shell program to bring the system up
+.IP cron
+the clock daemon,
+.IR cron (8)
+.IP mount
+.IR mount (1)
+.IP wall
+.IR wall (1)
+.IP ...
+.RE
+.IP /tmp/
+temporary files, usually on a fast device, cf /usr/tmp/
+.RS
+.IP e*
+used by
+.IR ed (1)
+.IP ctm*
+used by
+.IR cc (1)
+.IP ...
+.RE
+.IP /usr/
+general-pupose directory, usually a mounted file system
+.RS
+.IP adm/
+administrative information
+.RS
+.IP wtmp
+login history,
+.IR utmp (5)
+.IP messages
+hardware error messages
+.IP tracct
+phototypesetter accounting,
+.IR troff (1)
+.IP vpacct
+line printer accounting
+.IR lpr (1)
+.RE
+.RE
+.IP /usr\t/bin
+.RS
+utility programs, to keep /bin/ small
+.IP tmp/
+temporaries, to keep /tmp/ small
+.RS
+.IP stm*
+used by
+.IR sort (1)
+.IP raster
+used by
+.IR plot (1)
+.RE
+.IP dict/
+word lists, etc.
+.RS
+.IP words
+principal word list, used by
+.IR look (1)
+.IP spellhist
+history file for
+.IR spell (1)
+.RE
+.IP games/
+.RS
+.IP hangman
+.IP quiz.k/
+what
+.IR quiz (6)
+knows
+.RS
+.IP index
+category index
+.IP africa
+countries and capitals
+.IP ...
+.RE
+.IP ...
+.RE
+.IP include/
+standard #include files
+.RS
+.IP a.out.h
+object file layout,
+.IR a.out (5)
+.IP stdio.h
+standard I/O,
+.IR stdio (3)
+.IP math.h
+(3M)
+.IP ...
+.IP sys/
+system-defined layouts, cf /usr/sys/h
+.RS
+.IP acct.h
+process accounts,
+.IR acct (5)
+.IP buf.h
+internal system buffers
+.IP ...
+.RE
+.RE
+.IP lib/
+object libraries and stuff, to keep /lib/ small
+.RS
+.IP libm.a
+math routines (3M)
+.IP libplot.a
+plotting routines,
+.IR plot (3)
+.IP libF77.a
+Fortran runtime support
+.IP libI77.a
+Fortran I/O
+.IP lint[12]
+subprocesses for
+.IR lint (1)
+.IP llib-lc
+dummy declarations for /lib/libc.a, used by
+.IR lint (1)
+.IP llib-lm
+dummy declarations for /lib/libc.m
+.IP atrun
+scheduler for
+.IR at (1)
+.IP struct/
+passes of
+.IR struct (1)
+.IP ...
+.IP tmac/
+macros for
+.IR troff (1)
+.RS
+.IP tmac.an
+macros for
+.IR man (7)
+.IP tmac.s
+macros for
+.IR ms (7)
+.IP ...
+.RE
+.IP font/
+fonts for
+.IR troff (1)
+.RS
+.IP ftR
+Times Roman
+.IP ftB
+Times Bold
+.IP ...
+.RE
+.IP uucp/
+programs and data for
+.IR uucp (1)
+.RS
+.IP L.sys
+remote system names and numbers
+.IP uucico
+the real copy program
+.IP ...
+.RE
+.IP units
+conversion tables for
+.IR units (1)
+.IP eign
+list of English words to be ignored by
+.IR ptx (1)
+.RE
+.RE
+.IP /usr/\tman/
+.RS
+volume 1 of this manual,
+.IR man (1)
+.RS
+.IP man0/
+general
+.RS
+.IP intro
+introduction to volume 1,
+.IR ms (7)
+format
+.IP xx
+template for manual page
+.RE
+.IP man1/
+chapter 1
+.RS
+.IP as.1
+.IP mount.1m
+.IP ...
+.RE
+.IP cat1/
+preprinted pages for man1/
+.RS
+.IP as.1
+.IP mount.1m
+.RE
+.IP ...
+.RE
+.IP spool/
+delayed execution files
+.RS
+.IP at/
+used by
+.IR at (1)
+.IP lpd/
+used by
+.IR lpr (1)
+.RS
+.IP lock
+present when line printer is active
+.IP cf*
+copy of file to be printed, if necessary
+.IP df*
+daemon control file,
+.IR lpd (8)
+.IP tf*
+transient control file, while
+.I lpr
+is working
+.RE
+.IP mail/
+mailboxes for
+.IR mail (1)
+.RS
+.TP
+.I uid
+mail file for user
+.I uid
+.TP
+.IR uid .lock
+lock file while
+.I uid
+is receiving mail
+.RE
+.IP secretmail/
+like
+.IR mail /
+.IP uucp/
+work files and staging area for
+.IR uucp (1)
+.RS
+.IP LOGFILE
+summary log
+.IP LOG.*
+log file for one transaction
+.RE
+.RE
+.TP
+.I wd
+initial working directory of a user,
+typically
+.I wd
+is the user's login name
+.RS
+.TP
+.BR . profile
+set environment for
+.IR sh (1),
+.IR environ (5)
+.IP calendar
+user's datebook for
+.IR calendar (1)
+.RE
+.IP doc/
+papers, mostly in volume 2 of this manual, typically in
+.IR ms (7)
+format
+.RS
+.IP c
+C manual
+.IP ...
+.RE
+.RE
+.RE
+.IP /usr/\tsrc/
+.RS
+source programs for utilities, etc.
+.RS
+.IP cmd/
+source of commands
+.RS
+.IP as/
+assembler
+.IP ar.c
+source for
+.IR ar (1)
+.IP ...
+.IP troff/
+source for
+.I nroff
+and
+.IR troff (1)
+.RS
+.IP font/
+source for font tables, /usr/lib/font/
+.RS
+.IP ftR.c
+Roman
+.IP ...
+.RE
+.IP term/
+terminal characteristics tables, /usr/lib/term/
+.RS
+.IP tab300.c
+DASI 300
+.IP ...
+.RE
+.IP ...
+.RE
+.RE
+.IP libc/
+source for functions in /lib/libc.a
+.RS
+.IP crt/
+C runtime support
+.IP csu/
+startup and wrapup routines needed with every C program
+.RS
+.IP crt0.s
+regular startup
+.IP mcrt0.s
+modified startup for
+.I cc \-p
+.RE
+.IP sys/
+system calls (2)
+.RS
+.IP access.s
+.IP alarm.s
+.IP ...
+.RE
+.IP stdio/
+standard I/O functions (3S)
+.RS
+.IP fgets.c
+.IP fopen.c
+.IP ...
+.RE
+.IP gen/
+other functions in (3)
+.RS
+.IP abs.c
+.IP ...
+.RE
+.IP compall
+shell procedure to compile libc
+.IP mklib
+shell procedure to make /lib/libc.a
+.RE
+.IP libI77/
+source for /lib/libI77
+.IP libF77/
+.IP sys/
+system source
+.RS
+.IP h/
+header (include) files
+.RS
+.IP acct.h
+.IR acct (5)
+.IP stat.h
+.IR stat (2)
+.IP ...
+.RE
+.IP sys/
+source for system proper
+.RS
+.IP main.c
+.IP pipe.c
+.IP sysent.c
+system entry points
+.IP ...
+.RE
+.IP ...
+.IP games/
+source for /usr/games
+.RE
+.RE
+.ad
+.SH SEE ALSO
+ls(1), ncheck(1), find(1), grep(1)
+.SH BUGS
+The position of files is subject to change without notice.
projects / unix-history / commitdiff