1 .TH HIST 1
2 .SH NAME
3 hist, history \- print file names from the dump
4 .SH SYNOPSIS
5 .B hist
6 [
7 .B -vdu
8 ] [
9 .B -s
10 .I yyyymmdd
11 ]
12 .I files ...
13 .SH DESCRIPTION
14 .I Hist
15 prints the names, dates, and sizes of all versions of the named
16 .IR files ,
17 looking backwards in time,
18 stored in the dump file system.
19 If the file exists in the main tree, the first line of output will be its current state.
20 For example,
21 .IP
22 .EX
23 hist ~rsc/.bash_history
24 .EE
25 .PP
26 produces
27 .IP
28 .EX
29 .nf
30 May 19 16:11:37 EDT 2005 /home/am3/rsc/.bash_history 6175
31 May 18 23:32:16 EDT 2005 /dump/am/2005/0519/home/am3/rsc/.bash_history 5156
32 May 17 23:32:31 EDT 2005 /dump/am/2005/0518/home/am3/rsc/.bash_history 5075
33 May 16 07:53:47 EDT 2005 /dump/am/2005/0517/home/am3/rsc/.bash_history 5065
34 .fi
35 .EE
36 .PP
37 The
38 .B -v
39 option enables verbose debugging printout.
40 .PP
41 The 
42 .B -d
43 option causes
44 .MR diff (1)
45 .B -c
46 to be run for each adjacent pair of dump files, while
47 .B -b
48 runs
49 .IR diff
50 .BR -cb .
51 .PP
52 The
53 .B -u
54 option causes times to be printed in GMT (UT) rather than local time.
55 .PP
56 Finally, the
57 .B -s
58 option
59 sets the starting (most recent) date for the output.
60 .SH EXAMPLES
61 .PP
62 Examine changes in block.c:
63 .IP
64 .EX
65 hist -d block.c
66 .EE
67 .SH FILES
68 .TF /dump
69 .TP
70 .B /dump
71 by convention, root of dump file system
72 .PD
73 .SH SOURCE
74 .B \*9/src/cmd/hist.c
75 .SH SEE ALSO
76 .MR yesterday (1) ,
77 .MR vbackup (8)
78 .SH BUGS
79 Should be called
80 .IR history ,
81 but
82 that name is taken by
83 .MR sh (1) .