tfossilcons.8 - plan9port - [fork] Plan 9 from user space
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---
tfossilcons.8 (18941B)
---
1 .TH FOSSILCONS 8
2 .SH NAME
3 fossilcons \- fossil console commands
4 .SH SYNOPSIS
5 .B
6 con /srv/fscons
7 .PP
8 .PD 0.1
9 .B .
10 .I file
11 .PP
12 .B 9p
13 .I T-message
14 ...
15 .PP
16 .B bind
17 [
18 .B -b|-a|-c|-bc|-ac
19 ]
20 .I new
21 .I old
22 .PP
23 .B dflag
24 .PP
25 .B echo
26 [
27 .B -n
28 ]
29 [
30 .I arg
31 ...
32 ]
33 .PP
34 .B listen
35 [
36 .B -INd
37 ]
38 [
39 .I address
40 ]
41 .PP
42 .B msg
43 [
44 .B -m
45 .I nmsg
46 ]
47 [
48 .B -p
49 .I nproc
50 ]
51 .PP
52 .B printconfig
53 .PP
54 .B srv
55 [
56 .B -APWdp
57 ]
58 .I name
59 .PP
60 .B uname
61 .I name
62 [
63 .I id
64 |
65 .BI : id
66 |
67 .BI % newname
68 |
69 .BI = leader
70 |
71 .BI + member
72 |
73 .BI - member
74 ]
75 .PP
76 .B users
77 [
78 .B -d
79 |
80 .B -r
81 .I file
82 ]
83 [
84 .B -w
85 ]
86 .PP
87 .B who
88 .sp
89 .PP
90 .B fsys
91 .I name
92 .PP
93 .B fsys
94 .I name
95 .B config
96 [
97 .I device
98 ]
99 .PP
100 .B fsys
101 .I name
102 .B venti
103 [
104 .I host
105 ]
106 .PP
107 .B fsys
108 .I name
109 .B open
110 [
111 .B -APVWar
112 ]
113 [
114 .B -c
115 .I ncache
116 ]
117 .PP
118 [
119 .B fsys
120 .I name
121 ]
122 .B close
123 .PP
124 .B fsys
125 .I name
126 .B unconfig
127 .sp
128 .PP
129 [
130 .B fsys
131 .I name
132 ]
133 .B bfree
134 .I addr
135 .PP
136 [
137 .B fsys
138 .I name
139 ]
140 .B block
141 .I addr
142 .I offset
143 [
144 .I count
145 [
146 .I data
147 ]]
148 .PP
149 .in +1i
150 .ti -1i
151 [
152 .B fsys
153 .I name
154 ]
155 .B check
156 [
157 .B pblock
158 ] [
159 .B pdir
160 ] [
161 .B pfile
162 ] [
163 .B bclose
164 ] [
165 .B clri
166 ] [
167 .B clre
168 ] [
169 .B clrp
170 ] [
171 .B fix
172 ] [
173 .B venti
174 ] [
175 .B snapshot
176 ]
177 .PP
178 [
179 .B fsys
180 .I name
181 ]
182 .B clre
183 .I addr
184 .I offsets
185 \&...
186 .PP
187 [
188 .B fsys
189 .I name
190 ]
191 .B clri
192 .I files
193 \&...
194 .PP
195 [
196 .B fsys
197 .I name
198 ]
199 .B clrp
200 .I addr
201 .I offset
202 \&...
203 .PP
204 [
205 .B fsys
206 .I name
207 ]
208 .B create
209 .I path
210 .I uid
211 .I gid
212 .I perm
213 .PP
214 [
215 .B fsys
216 .I name
217 ]
218 .B df
219 .PP
220 [
221 .B fsys
222 .I name
223 ]
224 .B epoch
225 [[
226 .B -ry
227 ]
228 .I n
229 ]
230 .PP
231 [
232 .B fsys
233 .I name
234 ]
235 .B halt
236 .PP
237 [
238 .B fsys
239 .I name
240 ]
241 .B label
242 .I addr
243 [
244 .I type
245 .I state
246 .I epoch
247 .I epochclose
248 .I tag
249 ]
250 .PP
251 [
252 .B fsys
253 .I name
254 ]
255 .B remove
256 .I files
257 \&...
258 .PP
259 [
260 .B fsys
261 .I name
262 ]
263 .B snap
264 [
265 .B -a
266 ]
267 [
268 .B -s
269 .I src
270 ]
271 [
272 .B -d
273 .I dst
274 ]
275 .PP
276 [
277 .B fsys
278 .I name
279 ]
280 .B snapclean
281 [
282 .I timeout
283 ]
284 .PP
285 [
286 .B fsys
287 .I name
288 ]
289 .B snaptime
290 [
291 .B -a
292 .I hhmm
293 ]
294 [
295 .B -s
296 .I interval
297 ]
298 [
299 .B -t
300 .I timeout
301 ]
302 .PP
303 [
304 .B fsys
305 .I name
306 ]
307 .B stat
308 .IR files ...
309 .PP
310 [
311 .B fsys
312 .I name
313 ]
314 .B sync
315 .PP
316 [
317 .B fsys
318 .I name
319 ]
320 .B unhalt
321 .PP
322 [
323 .B fsys
324 .I name
325 ]
326 .B vac
327 .I dir
328 .PP
329 [
330 .B fsys
331 .I name
332 ]
333 .B wstat
334 .I file
335 .I elem
336 .I uid
337 .I gid
338 .I perm
339 .I length
340 .SH DESCRIPTION
341 These are configuration and maintenance commands
342 executed at the console of a
343 .MR fossil (4)
344 file server.
345 The commands are split into three groups above:
346 file server configuration,
347 file system configuration,
348 and file system maintenance.
349 This manual page is split in the same way.
350 .SS File server configuration
351 .PP
352 The
353 dot
354 .RI ( . )
355 command
356 reads
357 .IR file ,
358 treating each line as a command to be executed.
359 Blank lines and lines beginning with a
360 .L #
361 character are ignored.
362 Errors during execution are printed but do not stop the script.
363 Note that
364 .I file
365 is a file in the name space in which
366 .I fossil
367 was started,
368 .I not
369 a file in any file system served by
370 .IR fossil .
371 .PP
372 .I 9p
373 executes a 9P transaction; the arguments
374 are in the same format used by
375 .MR 9pcon (8) .
376 .PP
377 .I Bind
378 behaves similarly to
379 .MR bind (1) .
380 It is useful when fossil
381 is started without devices it needs configured
382 into its namespace.
383 .PP
384 .I Dflag
385 toggles the debug flag and prints the new setting.
386 When the debug flag is set, all protocol messages
387 and information about authentication is printed to
388 standard error.
389 .PP
390 .I Echo
391 behaves identically to
392 .MR echo (1) ,
393 writing to the console.
394 .PP
395 .I Listen
396 manages the network addresses at which
397 fossil is listening.
398 With no arguments,
399 .I listen
400 prints the current list of addresses and their network directories.
401 With one argument, listen
402 .I address
403 starts a new listener at
404 .IR address ;
405 the
406 .B -d
407 flag causes
408 .I listen
409 to remove the listener
410 at the given address.
411 By default, the user
412 .I none
413 is only allowed to attach on a connection after
414 at least one other user has successfully attached.
415 The
416 .B -N
417 flag allows connections from
418 .I none
419 at any time.
420 The
421 .B -I
422 flag causes
423 .I fossil
424 to check the IP address of incoming connections
425 against
426 .BR /mnt/ipok ,
427 rejecting attaches from disallowed addresses.
428 This mechanism is not intended for general use.
429 The server
430 .I sources.cs.bell-labs.com
431 uses it to comply with U.S. crytography
432 export regulations.
433 .PP
434 .I Msg
435 prints the maximum internal 9P message queue size
436 and the maximum number of 9P processes to
437 allocate for serving the queue.
438 The
439 .B -m
440 and
441 .B -p
442 options set the two variables.
443 .PP
444 .I Printconfig
445 prints the
446 .B config
447 line for each configured file system
448 and prints the
449 .B venti
450 line, if any, used to configure this file server.
451 .PP
452 .I Srv
453 behaves like listen but uses
454 .BI /srv/ name
455 rather than a network address.
456 With the
457 .B -p
458 flag,
459 .I srv
460 edits a list of console services rather than 9P services.
461 With no arguments,
462 .I srv
463 prints the current list of services.
464 With one argument, srv
465 .I name
466 starts a new service at
467 .IR /srv/name ;
468 the
469 .B -d
470 flag causes
471 .I srv
472 to remove the named service.
473 See the
474 .I [fsys] open
475 command below for a description of the
476 .B -APW
477 options.
478 .PP
479 .I Uname
480 manipulates entries in the user table.
481 There is no distinction between users and groups:
482 a user is a group with one member.
483 For each user, the user table records:
484 .TF \fImembers
485 .PD
486 .TP
487 .I id
488 the string used to represent this user in the on-disk structures
489 .TP
490 .I name
491 the string used to represent this user in the 9P protocol
492 .TP
493 .I leader
494 the group's leader (see Plan 9's
495 .MR stat (5)
496 for a description of the special privileges held by a group leader)
497 .TP
498 .I members
499 a comma-separated list of members in this group
500 .PP
501 The
502 .I id
503 and
504 .I name
505 are usually the same string, but need not be.
506 Once an
507 .I id
508 is used in file system structures archived to Venti,
509 it is impossible to change those disk structures,
510 and thus impossible to rename the
511 .IR id .
512 The translation from
513 .I name
514 to
515 .I id
516 allows the appearance of renaming the user even
517 though the on-disk structures still record the old name.
518 (In a conventional Unix file system, the
519 .I id
520 is stored as a small integer rather than a string.)
521 .I Leader
522 and
523 .I members
524 are names, not ids.
525 .PP
526 The first argument to
527 .I uname
528 is the
529 .I name
530 of a user.
531 The second argument is a verb, one of:
532 .TF \fI%newname
533 .PD
534 .TP
535 .I id
536 create a user with name
537 .RI ` name '
538 and id
539 .RI ` id ;'
540 also create a home directory
541 .BI /active/usr/ uname \fR
542 .TP
543 .BI : id
544 create a user with name
545 .RI ` name '
546 and id
547 .RI ` id ,'
548 but do not create a home directory
549 .TP
550 .BI % newname
551 rename user
552 .RI ` name '
553 to
554 .RI ` newname ,'
555 throughout the user table
556 .TP
557 .BI = leader
558 set
559 .IR name 's
560 group leader
561 to
562 .IR leader .
563 .TP
564 .BI =
565 remove
566 .IR name 's
567 group leader; then all members will be
568 considered leaders
569 .TP
570 .BI + member
571 add
572 .I member
573 to
574 .IR name 's
575 list of members
576 .TP
577 .BI - member
578 remove
579 .I member
580 from
581 .IR name 's
582 list of members
583 .LP
584 If the verb is omitted, the entire entry for
585 .I name
586 is printed, in the form
587 `\fIid\fL:\fIname\fL:\fIleader\fL:\fImembers\fR.'
588 .LP
589 The end of this manual page gives examples.
590 .PP
591 .I Users
592 manipulates the user table.
593 The user table is a list of lines in the form printed
594 by the
595 .I uname
596 command.
597 The
598 .B -d
599 flag resets the user table with the default:
600 .IP
601 .EX
602 adm:adm:adm:sys
603 none:none::
604 noworld:noworld::
605 sys:sys::
606 glenda:glenda:glenda:
607 .EE
608 .PP
609 Except
610 .BR glenda ,
611 these users are mandatory: they must appear in all user
612 files and cannot be renamed.
613 .PP
614 The
615 .B -r
616 flag reads a user table from the named
617 .I file
618 in file system
619 .BR main .
620 The
621 .B -w
622 flag writes the table to
623 .B /active/adm/users
624 on the file system
625 .BR main .
626 .B /active/adm
627 and
628 .B /active/adm/users
629 will be created if they do not exist.
630 .PP
631 .I Users
632 .B -r
633 .B /active/adm/users
634 is automatically executed when the file system
635 .B main
636 is opened.
637 .PP
638 .I Users
639 .B -w
640 is automatically executed after each change to the user
641 table by the
642 .I uname
643 command.
644 .PP
645 .I Who
646 prints a list of users attached to each active connection.
647 .SS File system configuration
648 .I Fsys
649 sets the current file system to
650 .IR name ,
651 which must be configured and open (q.v.).
652 The current file system name is
653 displayed as the file server prompt.
654 The special name
655 .B all
656 stands for all file systems;
657 commands applied to
658 .B all
659 are applied to each file system in turn.
660 The commands
661 .BR config ,
662 .BR open ,
663 .BR venti ,
664 and
665 .B close
666 cannot be applied to
667 .BR all .
668 .PP
669 .I Fsys
670 takes as an optional argument
671 (after
672 .BR name )
673 a command to execute on the named file system.
674 Most commands require that the named file system
675 be configured and open; these commands can be invoked
676 without the
677 .BI fsys " name
678 prefix, in which case the current file system is used.
679 A few commands
680 .RB ( config ,
681 .BR open ,
682 and
683 .BR unconfig )
684 operate on unopened file systems; they require the prefix.
685 .PP
686 .I Config
687 creates a new file system named
688 .I name
689 using disk file
690 .IR device .
691 This just adds an entry to fossil's internal table.
692 If
693 .I device
694 is missing,
695 the
696 .I file
697 argument to
698 .IR fossil 's
699 .B -f
700 option will be used instead;
701 this allows the
702 .I fossil
703 configuration file to avoid naming the partition that it is embedded in,
704 making it more portable.
705 .PP
706 .I Venti
707 establishes a connection to the Venti server
708 .I host
709 (by default, the environment variable
710 .B $venti
711 or the network variable
712 .BR $venti )
713 for use by the named file system.
714 If no
715 .I venti
716 command is issued before
717 .IR open ,
718 the default Venti server will be used.
719 If the file system is open,
720 and was not opened with the
721 .B -V
722 flag,
723 the command redials the Venti server.
724 This can be used to reestablish broken connections.
725 It is not a good idea to use the command to switch
726 between Venti servers, since Fossil does not keep track
727 of which blocks are stored on which servers.
728 .PP
729 .I Open
730 opens the file system, reading the
731 root and super blocks and allocating an in-memory
732 cache for disk and Venti blocks.
733 The options are:
734 .TF "-c\fI ncache
735 .PD
736 .TP
737 .B -A
738 run with no authentication
739 .TP
740 .B -P
741 run with no permission checking
742 .TP
743 .B -V
744 do not attempt to connect to a Venti server
745 .TP
746 .B -W
747 allow wstat to make arbitrary changes to the user and group fields
748 .TP
749 .B -a
750 do not update file access times;
751 primarily to avoid wear on flash memories
752 .TP
753 .B -r
754 open the file system read-only
755 .TP
756 .BI -c " ncache
757 allocate an in-memory cache of
758 .I ncache
759 (by default, 1000)
760 blocks
761 .PP
762 The
763 .I -APW
764 settings can be overridden on a per-connection basis
765 by the
766 .I srv
767 command above.
768 .PP
769 .I Close
770 flushes all dirty file system blocks to disk
771 and then closes the device file.
772 .PP
773 .I Unconfig
774 removes the named file system (which must be closed)
775 from fossil's internal table.
776 .br
777 .ne 3
778 .SS File system maintenance
779 .I Bfree
780 marks the block at disk address
781 .I addr
782 as available for allocation.
783 Before doing so, it prints a
784 .I label
785 command (q.v.)
786 that can be used to restore the block to its previous state.
787 .PP
788 .I Block
789 displays (in hexadecimal)
790 the contents of the block at disk address
791 .IR addr ,
792 starting at
793 .I offset
794 and continuing for
795 .I count
796 bytes or until the end of the block.
797 If
798 .I data
799 (also hexadecimal)
800 is given, the contents in that range are
801 replaced with data.
802 When writing to a block,
803 .I block
804 prints the old and new contents,
805 so that the change is easily undone.
806 Editing blocks is discouraged.
807 .PP
808 .I Clre
809 zeros an entry from a disk block.
810 Before doing so, it prints a
811 .I block
812 command that can be used
813 to restore the entry.
814 .PP
815 .I Clri
816 removes the internal directory entry
817 and abandons storage associated with
818 .IR files .
819 It ignores the usual rules for sanity, such as checking against
820 removing a non-empty directory.
821 A subsequent
822 .I flchk
823 (see
824 .MR fossil (4) )
825 will identify the abandoned storage so it can be reclaimed with
826 .I bfree
827 commands.
828 .PP
829 .I Clrp
830 zeros a pointer in a disk block.
831 Before doing so, it prints a
832 .I block
833 command that can be used to restore the entry.
834 .PP
835 .I Check
836 checks the file system for various inconsistencies.
837 If the file system is not already halted, it is halted for
838 the duration of the check.
839 If the archiver is currently sending a snapshot to Venti,
840 the check will refuse to run; the only recourse is to wait
841 for the archiver to finish.
842 .PP
843 A list of keyword options control the check.
844 The
845 .BR pblock ,
846 .BR pdir ,
847 and
848 .B pfile
849 options cause
850 .I check
851 to print the name of each block, directory, or file encountered.
852 .PP
853 By default,
854 .I check
855 reports errors but does not fix them.
856 The
857 .BR bclose ,
858 .BR clri ,
859 .BR clre ,
860 and
861 .B clrp
862 options specify correcting actions that may be taken:
863 closing leaked blocks, clearing bad file directory entries,
864 clearing bad pointers, and clearing bad entries.
865 The
866 .B fix
867 option enables all of these; it is equivalent to
868 .B bclose
869 .B clri
870 .B clre
871 .BR clrp .
872 .PP
873 By default,
874 .I check
875 scans the portion of the active file system held in the write buffer,
876 avoiding blocks stored on Venti or used only in snapshots.
877 The
878 .B venti
879 option causes
880 .I check
881 to scan the portion of the file system stored on Venti,
882 and the
883 .B snapshot
884 option causes
885 .I check
886 to scan old snapshots.
887 Specifying
888 .B snapshot
889 causes
890 .I check
891 to take a long time;
892 specifying
893 .B venti
894 or
895 (worse)
896 .B venti
897 .B snapshot
898 causes
899 .I check
900 to take a very long time.
901 .PP
902 .I Create
903 creates a file on the current file system.
904 .I Uid
905 and
906 .I gid
907 are uids
908 .RI ( not
909 unames;
910 see the discussion above, in the description
911 of the
912 .I uname
913 command).
914 .I Perm
915 is the low 9 bits of the permission mode of the file,
916 in octal.
917 The
918 .BR a ,
919 .BR d ,
920 and
921 .B l
922 mode prefixes
923 set the append-only, directory, and lock bits.
924 The
925 .I perm
926 is formatted as described in the
927 .I stat
928 command;
929 creating files or directories with the
930 .BR snapshot (s)
931 bit set is not allowed.
932 .PP
933 .I Df
934 prints the amount of used disk space in the write buffer.
935 .PP
936 .I Epoch
937 sets the low file system epoch.
938 Snapshots in the file system are given increasing epoch numbers.
939 The file system maintains a low and a high epoch number,
940 and only allows access to snapshots in that range.
941 The low epoch number can be moved forward to discard old snapshots
942 and reclaim the disk space they occupy.
943 (The high epoch number is always the epoch of the currently
944 active file system.)
945 .PP
946 With no argument
947 .I epoch
948 reports the current low and high epoch numbers.
949 The command
950 ``\fLepoch\fI n''\fR
951 is used to propose changing the low epoch to
952 .IR n .
953 In response,
954 .I fossil
955 scans
956 .B /archive
957 and
958 .B /snapshot
959 for snapshots that would be discarded, printing their
960 epoch numbers and the
961 .I clri
962 commands necessary to remove them.
963 The epoch is changed only if no such paths are found.
964 The usual sequence of commands is (1) run epoch to
965 print the snapshots and their epochs, (2) clri some snapshots,
966 (3) run epoch again.
967 If the file system is completely full (there are no free blocks),
968 .I clri
969 may fail because it needs to allocate blocks.
970 For this situation,
971 the
972 .B -y
973 flag to epoch forces the epoch change even when
974 it means discarding currently accessible snapshots.
975 Note that when there are still snapshots in
976 .BR /archive ,
977 the archiver should take care
978 of those snapshots (moving the blocks from disk to Venti)
979 if you give it more time.
980 .PP
981 The
982 .B -r
983 flag to epoch causes it to remove any now-inaccessible
984 snapshot directories once it has changed the epoch.
985 This flag only makes sense in conjunction with the
986 .B -y
987 flag.
988 .PP
989 .I Epoch
990 is a very low-level way to retire snapshots.
991 The preferred way is by setting an automatic timer
992 with
993 .IR snaptime .
994 .PP
995 .I Halt
996 suspends all file system activity;
997 .I unhalt
998 resumes activity.
999 .PP
1000 .I Label
1001 displays and edits the label associated with a block.
1002 When editing, a parameter of
1003 .B -
1004 means leave that field unchanged.
1005 Editing labels is discouraged.
1006 .PP
1007 .I Remove
1008 removes
1009 .IR files .
1010 .PP
1011 .I Snap
1012 takes a temporary snapshot of the current file system,
1013 recording it in
1014 .BI /snapshot/ yyyy / mmdd / hhmm \fR,
1015 as described in
1016 .MR fossil (4) .
1017 The
1018 .B -a
1019 flag causes
1020 .I snap
1021 to take an archival snapshot, recording it in
1022 .BI /archive/ yyyy / mmdd \fR,
1023 also described in
1024 .MR fossil (4) .
1025 By default the snapshot is taken of
1026 .BR /active ,
1027 the root of the active file system.
1028 The
1029 .B -s
1030 flag specifies a different source path.
1031 The
1032 .B -d
1033 flag specifies a different destination path.
1034 These two flags are useful together for moving snapshots into
1035 the archive tree.
1036 .PP
1037 .I Snapclean
1038 immediately discards all snapshots that are more than
1039 .I timeout
1040 minutes old.
1041 The default timeout is the one set by the
1042 .I snaptime
1043 command.
1044 The discarding is a one-time event rather than
1045 a recurring event as in
1046 .IR snaptime .
1047 .PP
1048 .I Snaptime
1049 displays and edits the times at which snapshots are automatically
1050 taken.
1051 An archival snapshot is taken once a day, at
1052 .IR hhmm ,
1053 while temporary snapshots are taken at multiples of
1054 .I interval
1055 minutes.
1056 Temporary snapshots are discarded after they are
1057 .I timeout
1058 minutes old.
1059 The snapshot cleanup runs every
1060 .I timeout
1061 minutes or once a day, whichever is more frequent,
1062 so snapshots may grow to an age of almost twice the timeout
1063 before actually being discarded.
1064 With no arguments,
1065 .I snaptime
1066 prints the current snapshot times.
1067 The
1068 .B -a
1069 and
1070 .B -s
1071 options set the archive and snapshot times.
1072 An
1073 .I hhmm
1074 or
1075 .I interval
1076 of
1077 .L none
1078 can be used to disable that kind of automatic snapshot.
1079 The
1080 .B -t
1081 option sets the snapshot timeout.
1082 If
1083 .I timeout
1084 is
1085 .LR none ,
1086 temporary snapshots are not automatically discarded.
1087 By default, all three times are set to
1088 .LR none .
1089 .PP
1090 .I Stat
1091 displays metadata for each of the named
1092 .IR files ,
1093 in the form:
1094 .IP
1095 .EX
1096 stat \fIfile elem uid gid perm length
1097 .EE
1098 .LP
1099 (Replacing
1100 .B stat
1101 with
1102 .B wstat
1103 yields a valid command.)
1104 The
1105 .I perm
1106 is an octal number less than or equal to 777,
1107 prefixed with any of the following letters
1108 to indicate additional bits.
1109 .IP
1110 .EX
1111 .ta +4n
1112 a \fRappend only
1113 d \fRdirectory
1114 l \fRexclusive use
1115 s \fRis the root of a snapshot
1116 t \fRtemporary bit
1117 A \fRMS-DOS archive bit
1118 G \fRsetgid
1119 H \fRMS-DOS hidden bit
1120 L \fRsymbolic link
1121 S \fRMS-DOS system bit
1122 U \fRsetuid
1123 Y \fRsticky
1124 .EE
1125 .PP
1126 The bits denoted by capital letters are included
1127 to support non-Plan 9 systems.
1128 They are not made visible by the 9P protocol.
1129 .PP
1130 .I Sync
1131 writes dirty blocks in memory to the disk.
1132 .PP
1133 .I Vac
1134 prints the Venti score for a
1135 .MR vac (1)
1136 archive containing the tree rooted
1137 at
1138 .IR dir ,
1139 which must already be archived to Venti
1140 (typically
1141 .IR dir
1142 is a directory in the
1143 .B /archive
1144 tree).
1145 .PP
1146 .I Wstat
1147 changes the metadata of the named
1148 .IR file .
1149 Specifying
1150 .B -
1151 for any of the fields means ``don't change.''
1152 Attempts to change the
1153 .B d
1154 or
1155 .B s
1156 bits in the
1157 .I perm
1158 are silently ignored.
1159 .SH EXAMPLES
1160 .IR Sources ,
1161 the Plan 9 distribution file server,
1162 uses the following configuration file:
1163 .IP
1164 .EX
1165 srv -p fscons.sources
1166 srv -p fscons.sources.adduserd
1167 srv sources
1168 fsys main config /dev/sdC0/fossil.outside
1169 fsys main open -c 25600
1170 fsys main
1171 users /active/adm/users
1172 listen tcp!*!564
1173 msg -m 40 -p 10
1174 snaptime -a 0000 -s 15
1175 .EE
1176 .LP
1177 The second console is used by the daemon
1178 that creates new accounts.
1179 .PP
1180 To add a new user with
1181 .I name
1182 and
1183 .I id
1184 .B rob
1185 and create his home directory:
1186 .IP
1187 .EX
1188 uname rob rob
1189 .EE
1190 .PP
1191 To create a new group
1192 .B sys
1193 (with no home directory)
1194 and add
1195 .B rob
1196 to it:
1197 .IP
1198 .EX
1199 uname sys :sys
1200 uname sys +rob
1201 .EE
1202 .PP
1203 To save an old (but not yet discarded) snapshot into the archive tree:
1204 .IP
1205 .EX
1206 snap -a -s /snapshot/2003/1220/0700 -d /archive/2003/1220
1207 .EE