Annotation of /nfo/bash/cyclelogs

#!/bin/sh
#-----------------------------------------------------------------------------
D='Log cycle control script'
C='rabit@netfrag.org, 2004/11/07'
I='$Id$'
#-----------------------------------------------------------------------------

# The rough original taken from:

#       Written by Martin Schulze <joey@debian.org>.
#       $-Id-: syslog-cron,v 1.4 2003/11/13 19:07:11 avenj Exp $

#-----------------------------------------------------------------------------
#- Configuration:
#- (Change this section according to your needs.)

# Working directory:
#WD=/val/log

# Additional list of files containing a list of log files:
LISTS='/var/log/.cyclelogs'

# Number of copies to keep:
COPIES=7

# User to change log files to:
USER=root

# Group to change log files to:
GROUP=adm

# Mode to change log files to:
MODE=640

#-----------------------------------------------------------------------------
#- Constants:

e='echo -e'
yw="\033[1;33m"
gy="\033[0;37m"
b0="\033[0m"
b1="\033[1m"

N=$(basename $0)
I=${I:5}
I=${I:-No CVS ID yet}

CycleCommand="/usr/sbin/savelog -g $GROUP -m $MODE -u $USER -c $COPIES"

#-----------------------------------------------------------------------------
#- Functions:

# Syntax: createlist
# Creates the list of log files to work with.
#
createlist() {

        # First, build a list of all log files known to syslogd:
        LOGFILES=$(/usr/sbin/syslogd-listfiles -a)

        # Add all log files in '/var/log/.cyclelogs' to the list:
        LOGFILES=$LOGFILES' '$(/bin/cat /var/log/.cyclelogs)

}

# Syntax: cyclelogs
# Uses 'savelog' to cycle all given log files in $LOGFILES.
#
cyclelogs() {

        # Iterate each entry in $LOGFILES:
        for LOG in $LOGFILES; do

                # If the file $LOG exists...:
                if [ -f $LOG ]; then

                        if [ "$Pretend" == 1 ]; then
                                $e "Would cycle file '$b1$LOG$b0'."
                        else
                                $CycleCommand $LOG >/dev/null
                        fi

                fi

        done

        return

}

# Syntax: listfiles
# Outputs the list of all log files to work with (one file name per line).
#
listfiles() {

        for LOG in $LOGFILES; do
                echo $LOG
        done

        return

}

printhelp() {

        $e "${b1}Function${b0}:
  $N cycles a list of log files using the 'savelog' command.
  The list of files consists of all log files known to syslogd and additional
  files from list files you may specify.
  Without options called $N immediately begins doing its job.
  At last syslogd is restarted to make it use the emptied log files again.
  $N usually is called by CRON (or something like it). For this,
  place a link to it in one of the CRON directories.
${b1}Usage${b0}:
  $b1$N [<Option>]$b0
${b1}Options${b0}:
  ${b1}-t${b0}|${b1}--test${b0}
    Test mode. $N only prints out what would be done.
  ${b1}-l${b0}|${b1}--list${b0}
    $N only lists all known log files, then exits.
  ${b1}-h${b0}|${b1}--help${b0}
    Outputs this command line help and exits.
  ${b1}-v${b0}|${b1}--version${b0}
    Shows title and version and exits."

        return

}

printinfo() {

        $e "- Test mode active.
(All files would become mode '$b1$MODE$b0' set and chown'd to '$b1$USER:$GROUP$b0'. '$b1$COPIES$b0' copies would be kept.)"
        return

}

printtitle() {

        $e "$yw$N - $D$gy ($C)\n($I)"
        return

}

#-----------------------------------------------------------------------------

Pretend=0

while [ -n "$1" ]; do

        case $1 in

        (-h|--help)
                printtitle
                printhelp
                exit
                ;;

        (-l|--list)
                createlist
                listfiles
                exit
                ;;

        (-t|--test)
                printtitle
                printinfo
                Pretend=1
                ;;

        (-v|--version)
                printtitle
                exit
                ;;
        esac

        shift

done

#-----------------------------------------------------------------------------

createlist
cyclelogs

# Restart syslogd to make it resume with the emptied log files:

SyslogCommand='/bin/killall -HUP syslogd'

if [ "$Pretend" == 1 ]; then
        $e "Would call '$b1$SyslogCommand$b0' to make syslogd restart."
else
        $SyslogCommand
fi

#-----------------------------------------------------------------------------
1	rabit	1.1	#!/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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