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1.1 root 1: .TH HIER 7
2: .SH NAME
3: hier \- file system hierarchy
4: .SH DESCRIPTION
5: The following outline gives a quick tour through
6: a representative directory hierarchy.
7: .na
8: .nh
9: .IP /
10: root
11: .PD 0
12: .IP /vmunix
13: the kernel binary (UNIX itself)
14: .IP /lost+found
15: directory for connecting detached files for
16: .IR fsck (8)
17: .IP /dev/
18: devices (4)
19: .RS
20: .IP console
21: main console,
22: .IR ttyld (4)
23: .IP tty*
24: terminals,
25: .IR ttyld (4)
26: .IP ra*
27: disks,
28: .IR ra (4)
29: .IP rra*
30: raw disks,
31: .IR ra (4)
32: .IP ...
33: .RE
34: .IP /bin/
35: utility programs, cf /usr/bin/ (1)
36: .RS
37: .IP as
38: assembler
39: .IP cc
40: C compiler executive,
41: cf /lib/ccom, /lib/cpp, /lib/c2
42: .IP csh
43: C shell
44: .IP ...
45: .RE
46: .IP /lib/
47: object libraries and other stuff, cf /usr/lib/
48: .RS
49: .IP libc.a
50: system calls, standard I/O, etc. (2,3,3S)
51: .IP ...
52: .IP ccom
53: C compiler proper
54: .IP cpp
55: C preprocessor
56: .IP c2
57: C code improver
58: .IP ...
59: .RE
60: .IP /etc/
61: essential data and maintenance utilities;
62: sect (8)
63: .RS
64: .IP dump
65: dump program
66: .IR dump (8)
67: .IP passwd
68: password file,
69: .IR passwd (5)
70: .IP group
71: group file,
72: .IR group (5)
73: .IP motd
74: message of the day,
75: .IR login (8)
76: .IP whoami
77: system name,
78: .IR uname (3)
79: .IP termcap
80: description of terminal capabilities,
81: .IR termcap (5)
82: .IP ttytype
83: table of what kind of terminal is on each port,
84: .IR ttytype (5)
85: .IP mtab
86: mounted file table,
87: .IR mtab (5)
88: .IP dumpdates
89: dump history,
90: .IR dump (8)
91: .IP fstab
92: file system configurtion table
93: .IR fstab (5)
94: .IP ttys
95: properties of terminals,
96: .IR ttys (5)
97: .IP getty
98: part of
99: .IR login ,
100: .IR getty (8)
101: .IP init
102: the parent of all processes,
103: .IR init (8)
104: .IP rc
105: shell program to bring the system up
106: .IP cron
107: the clock daemon,
108: .IR cron (8)
109: .IP mount
110: .IR mount (8)
111: .IP wall
112: .IR wall (1)
113: .IP ...
114: .RE
115: .IP /tmp/
116: temporary files, usually on a fast device, cf /usr/tmp/
117: .RS
118: .IP e*
119: used by
120: .IR ed (1)
121: .IP ctm*
122: used by
123: .IR cc (1)
124: .IP ...
125: .RE
126: .IP /usr/
127: general-pupose directory, usually a mounted file system
128: .RS
129: .IP adm/
130: administrative information
131: .RS
132: .IP wtmp
133: login history,
134: .IR utmp (5)
135: .IP messages
136: hardware error messages
137: .IP tracct
138: phototypesetter accounting,
139: .IR troff (1)
140: .IP lpacct
141: line printer accounting
142: .IR lpr (1)
143: .RE
144: .RE
145: .IP /usr\t/bin
146: .RS
147: utility programs, to keep /bin/ small
148: .IP tmp/
149: temporaries, to keep /tmp/ small
150: .RS
151: .IP stm*
152: used by
153: .IR sort (1)
154: .IP raster
155: used by
156: .IR plot (1)
157: .RE
158: .IP dict/
159: word lists, etc.
160: .RS
161: .IP words
162: principal word list, used by
163: .IR look (1)
164: .IP spellhist
165: history file for
166: .IR spell (1)
167: .RE
168: .IP games/
169: .RS
170: .IP hangman
171: .IP lib/
172: library of stuff for the games
173: .RS
174: .IP quiz.k/
175: what
176: .IR quiz (6)
177: knows
178: .RS
179: .IP index
180: category index
181: .IP africa
182: countries and capitals
183: .IP ...
184: .RE
185: .IP ...
186: .RE
187: .IP ...
188: .RE
189: .IP include/
190: standard #include files
191: .RS
192: .IP a.out.h
193: object file layout,
194: .IR a.out (5)
195: .IP stdio.h
196: standard I/O,
197: .IR stdio (3)
198: .IP math.h
199: (3M)
200: .IP ...
201: .IP sys/
202: system-defined layouts, cf /usr/sys/h
203: .RE
204: .IP lib/
205: object libraries and stuff, to keep /lib/ small
206: .RS
207: .IP atrun
208: scheduler for
209: .IR at (1)
210: .IP lint/
211: utility files for lint
212: .RS
213: .IP lint[12]
214: subprocesses for
215: .IR lint (1)
216: .IP llib-lc
217: dummy declarations for /lib/libc.a, used by
218: .IR lint (1)
219: .IP llib-lm
220: dummy declarations for /lib/libc.m
221: .IP ...
222: .RE
223: .IP struct/
224: passes of
225: .IR struct (1)
226: .IP ...
227: .IP tmac/
228: macros for
229: .IR troff (1)
230: .RS
231: .IP tmac.an
232: macros for
233: .IR man (7)
234: .IP tmac.s
235: macros for
236: .IR ms (7)
237: .IP ...
238: .RE
239: .IP font/
240: fonts for
241: .IR troff (1)
242: .RS
243: .IP ftR
244: Times Roman
245: .IP ftB
246: Times Bold
247: .IP ...
248: .RE
249: .IP uucp/
250: programs and data for
251: .IR uucp (1)
252: .RS
253: .IP L.sys
254: remote system names and numbers
255: .IP uucico
256: the real copy program
257: .IP ...
258: .RE
259: .IP units
260: conversion tables for
261: .IR units (7)
262: .IP eign
263: list of English words to be ignored by
264: .IR ptx (1)
265: .RE
266: .RE
267: .br
268: .ne 5
269: .IP /usr/\tman/
270: .RS
271: volume 1 of this manual,
272: .IR man (1)
273: .RS
274: .IP man0/
275: general
276: .RS
277: .IP intro
278: introduction to volume 1,
279: .IR ms (7)
280: format
281: .IP xx
282: template for manual page
283: .RE
284: .IP man1/
285: chapter 1
286: .RS
287: .IP as.1
288: .IP mount.1m
289: .IP ...
290: .RE
291: .IP ...
292: .IP cat1/
293: preformatted pages for section 1
294: .IP ...
295: .RE
296: .IP spool/
297: delayed execution files
298: .RS
299: .IP at/
300: used by
301: .IR at (1)
302: .IP lpd/
303: used by
304: .IR lpr (1)
305: .RS
306: .IP lock
307: present when line printer is active
308: .IP cf*
309: copy of file to be printed, if necessary
310: .IP df*
311: daemon control file,
312: .IR lpd (8)
313: .IP tf*
314: transient control file, while
315: .I lpr
316: is working
317: .RE
318: .IP uucp/
319: work files and staging area for
320: .IR uucp (1)
321: .RS
322: .IP LOGFILE
323: summary log
324: .IP LOG.*
325: log file for one transaction
326: .RE
327: .IP mail/
328: mailboxes for
329: .IR mail (1)
330: .RS
331: .TP
332: .I name
333: mail file for user
334: .I name
335: .TP
336: .IR name .lock
337: lock file while
338: .I name
339: is receiving mail
340: .RE
341: .IP secretmail/
342: like
343: .IR mail /
344: .IP uucp/
345: work files and staging area for
346: .IR uucp (1)
347: .RS
348: .IP LOGFILE
349: summary log
350: .IP LOG.*
351: log file for one transaction
352: .RE
353: .RE
354: .TP
355: .I wd
356: initial working directory of a user,
357: typically
358: .I wd
359: is the user's login name
360: .RS
361: .TP
362: .BR . profile
363: set environment for
364: .IR sh (1),
365: .IR environ (5)
366: .TP
367: calendar
368: user's datebook for
369: .IR calendar (1)
370: .RE
371: .IP doc/
372: papers, mostly in volume 2 of this manual, typically in
373: .IR ms (7)
374: format
375: .RS
376: .IP as/
377: assembler manual
378: .IP c
379: C manual
380: .IP ...
381: .RE
382: .RE
383: .RE
384: .IP /usr/\tsrc/
385: .RS
386: .IP
387: source programs for utilities, etc.
388: .RS
389: .IP cmd/
390: source of commands
391: .RS
392: .IP as/
393: assembler
394: .IP ar.c
395: source for
396: .IR ar (1)
397: .IP ...
398: .IP troff/
399: source for
400: .I nroff
401: and
402: .IR troff (1)
403: .RS
404: .IP font/
405: source for font tables, /usr/lib/font/
406: .RS
407: .IP ftR.c
408: Roman
409: .IP ...
410: .RE
411: .IP term/
412: terminal characteristics tables, /usr/lib/term/
413: .RS
414: .IP tab300.c
415: DASI 300
416: .IP ...
417: .RE
418: .IP ...
419: .RE
420: .RE
421: .IP games/
422: source for /usr/games
423: .IP libc/
424: source for functions in /lib/libc.a
425: .RS
426: .IP crt/
427: C runtime support
428: .IP csu/
429: startup and wrapup routines needed with every C program
430: .RS
431: .IP crt0.s
432: regular startup
433: .IP mcrt0.s
434: modified startup for
435: .I cc \-p
436: .RE
437: .IP sys/
438: system calls (2)
439: .RS
440: .IP access.s
441: .IP alarm.s
442: .IP ...
443: .RE
444: .IP stdio/
445: standard I/O functions (3S)
446: .RS
447: .IP fgets.c
448: .IP fopen.c
449: .IP ...
450: .RE
451: .IP gen/
452: other functions in (3)
453: .RS
454: .IP abs.c
455: .IP ...
456: .RE
457: .RE
458: .IP local/
459: source which isn't normally distributed
460: .IP new/
461: source for new versions of commands and library routines
462: .IP old/
463: source for old versions of commands and library routines
464: .IP sys/
465: system source
466: .RS
467: .IP h/
468: header (include) files
469: .RS
470: .IP acct.h
471: .IR acct (5)
472: .IP stat.h
473: .IR stat (2)
474: .IP ...
475: .RE
476: .IP sys/
477: system source proper
478: .RS
479: .IP main.c
480: .IP pipe.c
481: .IP sysent.c
482: system entry points
483: .RE
484: .RE
485: .RE
486: .IP ucb/
487: binaries of programs developed at UCB
488: .RS
489: .IP ...
490: .IP edit
491: editor for beginners
492: .IP ex
493: command editor for experienced users
494: .IP ...
495: .IP mail
496: mail reading/sending subsystem
497: .IP man
498: on line documentation
499: .IP ...
500: .IP pi
501: Pascal translator
502: .IP px
503: Pascal interpreter
504: .IP ...
505: .IP vi
506: visual editor
507: .RE
508: .RE
509: .ad
510: .SH SEE ALSO
511: .IR ls (1),
512: .IR du (1),
513: .IR icheck (8),
514: .IR find (1),
515: .IR grep (1)
516: .SH BUGS
517: The position of files is subject to change without notice.
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