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Annotated edit history of savelog(8) version 1, including all changes. View license author blame.
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1 perry 1 SAVELOG
2 !!!SAVELOG
3 NAME
4 SYNOPSIS
5 DESCRIPTION
6 OPTIONS
7 BUGS
8 ----
9 !!NAME
10
11
12 savelog - save a log file
13 !!SYNOPSIS
14
15
16 __savelog__ [[-m mode] [[-u user] [[-g group] [[-t] [[-p] [[-c
17 cycle] [[-l] file ...
18 !!DESCRIPTION
19
20
21 The __savelog__ command saves and optionally compresses
22 old copies of files. Older versions of ''file'' are
23 named:
24
25
26 ''file''.''''
27
28
29 where '''' is the version number, 0 being
30 the newest. Version numbers
31 ''-l__ prevents it. Version number 0 is not compressed
32 becase a process might still have ''file'' opened for
33 I/O. Only ''cycle'' versions of the file are
34 kept.
35
36
37 If the file does not exist and __-t__ was given, it will
38 be created.
39
40
41 For files that do exist and have lengths greater than zero,
42 the following actions are performed:
43
44
45 1)
46
47
48 Version numbered files are cycled. Version ''cycle''-2 is
49 moved to version ''cycle''-1, version ''cycle''-3 is
50 moved to version ''cycle''-2 , and so on. Finally version
51 0 is moved to version 1, and version ''cycle'' is
52 deleted. Both compressed names and uncompressed names are
53 cycled, regardless of __-l__. Missing version files are
54 ignored.
55
56
57 2)
58
59
60 The new ''file.1'' is compressed unless the __-l__
61 flag was given. It is changed subject to the __-m__,
62 __-u__, and __-g__ flags.
63
64
65 3)
66
67
68 The main file is moved to ''file.0''.
69
70
71 4)
72
73
74 If the __-m__, __-u__, __-g__, __-t__, or
75 __-p__ flags are given, then an empty ''file'' is
76 created subject to the given flags. With the __-p__ flag,
77 the file is created with the same owner, group, and
78 permissions as before.
79
80
81 5)
82
83
84 The new ''file.0'' is changed subject to the __-m__,
85 __-u__, and __-g__ flags.
86
87
88 Since the version numbers start with 0, version number
89 ''cycle'' is never formed. The ''cycle'' count must be
90 at least 2.
91 !!OPTIONS
92
93
94 __-m mode__
95
96
97 chmod the log files to mode
98
99
100 __-u user__
101
102
103 chown log files to user
104
105
106 __-g group__
107
108
109 chgrp log files to group
110
111
112 __-c cycle__
113
114
115 Save cycle versions of the logfile (default: 7)
116
117
118 __-t__
119
120
121 touch new logfile into existence
122
123
124 __-l__
125
126
127 don't compress any log files (default: do
128 compress)
129
130
131 __-p__
132
133
134 preserve owner, group, and permissions of
135 logfile
136 !!BUGS
137
138
139 If a process is still writing to ''file.0'', and savelog
140 moves it to ''file.1'' and compresses it, data could be
141 lost.
142 ----
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