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Contents of /nfo/bash/cyclelogs

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Revision 1.1 - (show annotations)
Wed Nov 10 12:50:22 2004 UTC (20 years, 1 month ago) by rabit
Branch: MAIN
CVS Tags: HEAD
Initial commit: Log cycler

1 #!/bin/sh
2 #-----------------------------------------------------------------------------
3 D='Log cycle control script'
4 C='rabit@netfrag.org, 2004/11/07'
5 I='$Id$'
6 #-----------------------------------------------------------------------------
7
8 # The rough original taken from:
9
10 # Written by Martin Schulze <joey@debian.org>.
11 # $-Id-: syslog-cron,v 1.4 2003/11/13 19:07:11 avenj Exp $
12
13 #-----------------------------------------------------------------------------
14 #- Configuration:
15 #- (Change this section according to your needs.)
16
17 # Working directory:
18 #WD=/val/log
19
20 # Additional list of files containing a list of log files:
21 LISTS='/var/log/.cyclelogs'
22
23 # Number of copies to keep:
24 COPIES=7
25
26 # User to change log files to:
27 USER=root
28
29 # Group to change log files to:
30 GROUP=adm
31
32 # Mode to change log files to:
33 MODE=640
34
35 #-----------------------------------------------------------------------------
36 #- Constants:
37
38 e='echo -e'
39 yw="\033[1;33m"
40 gy="\033[0;37m"
41 b0="\033[0m"
42 b1="\033[1m"
43
44 N=$(basename $0)
45 I=${I:5}
46 I=${I:-No CVS ID yet}
47
48 CycleCommand="/usr/sbin/savelog -g $GROUP -m $MODE -u $USER -c $COPIES"
49
50 #-----------------------------------------------------------------------------
51 #- Functions:
52
53 # Syntax: createlist
54 # Creates the list of log files to work with.
55 #
56 createlist() {
57
58 # First, build a list of all log files known to syslogd:
59 LOGFILES=$(/usr/sbin/syslogd-listfiles -a)
60
61 # Add all log files in '/var/log/.cyclelogs' to the list:
62 LOGFILES=$LOGFILES' '$(/bin/cat /var/log/.cyclelogs)
63
64 }
65
66 # Syntax: cyclelogs
67 # Uses 'savelog' to cycle all given log files in $LOGFILES.
68 #
69 cyclelogs() {
70
71 # Iterate each entry in $LOGFILES:
72 for LOG in $LOGFILES; do
73
74 # If the file $LOG exists...:
75 if [ -f $LOG ]; then
76
77 if [ "$Pretend" == 1 ]; then
78 $e "Would cycle file '$b1$LOG$b0'."
79 else
80 $CycleCommand $LOG >/dev/null
81 fi
82
83 fi
84
85 done
86
87 return
88
89 }
90
91 # Syntax: listfiles
92 # Outputs the list of all log files to work with (one file name per line).
93 #
94 listfiles() {
95
96 for LOG in $LOGFILES; do
97 echo $LOG
98 done
99
100 return
101
102 }
103
104 printhelp() {
105
106 $e "${b1}Function${b0}:
107 $N cycles a list of log files using the 'savelog' command.
108 The list of files consists of all log files known to syslogd and additional
109 files from list files you may specify.
110 Without options called $N immediately begins doing its job.
111 At last syslogd is restarted to make it use the emptied log files again.
112 $N usually is called by CRON (or something like it). For this,
113 place a link to it in one of the CRON directories.
114 ${b1}Usage${b0}:
115 $b1$N [<Option>]$b0
116 ${b1}Options${b0}:
117 ${b1}-t${b0}|${b1}--test${b0}
118 Test mode. $N only prints out what would be done.
119 ${b1}-l${b0}|${b1}--list${b0}
120 $N only lists all known log files, then exits.
121 ${b1}-h${b0}|${b1}--help${b0}
122 Outputs this command line help and exits.
123 ${b1}-v${b0}|${b1}--version${b0}
124 Shows title and version and exits."
125
126 return
127
128 }
129
130 printinfo() {
131
132 $e "- Test mode active.
133 (All files would become mode '$b1$MODE$b0' set and chown'd to '$b1$USER:$GROUP$b0'. '$b1$COPIES$b0' copies would be kept.)"
134 return
135
136 }
137
138 printtitle() {
139
140 $e "$yw$N - $D$gy ($C)\n($I)"
141 return
142
143 }
144
145 #-----------------------------------------------------------------------------
146
147 Pretend=0
148
149 while [ -n "$1" ]; do
150
151 case $1 in
152
153 (-h|--help)
154 printtitle
155 printhelp
156 exit
157 ;;
158
159 (-l|--list)
160 createlist
161 listfiles
162 exit
163 ;;
164
165 (-t|--test)
166 printtitle
167 printinfo
168 Pretend=1
169 ;;
170
171 (-v|--version)
172 printtitle
173 exit
174 ;;
175 esac
176
177 shift
178
179 done
180
181 #-----------------------------------------------------------------------------
182
183 createlist
184 cyclelogs
185
186 # Restart syslogd to make it resume with the emptied log files:
187
188 SyslogCommand='/bin/killall -HUP syslogd'
189
190 if [ "$Pretend" == 1 ]; then
191 $e "Would call '$b1$SyslogCommand$b0' to make syslogd restart."
192 else
193 $SyslogCommand
194 fi
195
196 #-----------------------------------------------------------------------------

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