Linux logrotate - Revision history

Pio2pio: /* Force to rotate only a single file log */

2019-08-01T21:47:47Z

Force to rotate only a single file log

← Older revision		Revision as of 23:47, 1 August 2019
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	Force to rotate only /var/log/messages logs. -v verbose, -f force		Force to rotate only /var/log/messages logs. -v verbose, -f force
	<source lang=bash>		<source lang=bash>
	$ logrotate -vf /etc/logrotate.d/messages		/usr/sbin/logrotate -vf /etc/logrotate.d/messages
	</source>		</source>

Pio2pio: /* Force to rotate only a single file log = */

2019-08-01T21:47:20Z

Force to rotate only a single file log =

← Older revision		Revision as of 23:47, 1 August 2019
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	</source>		</source>

	= Force to rotate only a single file log ==		= Force to rotate only a single file log =
	Force to rotate only /var/log/messages logs. -v verbose, -f force		Force to rotate only /var/log/messages logs. -v verbose, -f force
	<source lang=bash>		<source lang=bash>
	$ logrotate -vf /etc/logrotate.d/messages		$ logrotate -vf /etc/logrotate.d/messages
	</source>		</source>

	= Logrotate options =		= Logrotate options =
	;compress :This is used to compress the rotated log file with gzip, before postrotate		;compress :This is used to compress the rotated log file with gzip, before postrotate

Pio2pio at 21:45, 1 August 2019

2019-08-01T21:45:56Z

← Older revision		Revision as of 23:45, 1 August 2019
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	In this example I will how to configure specific rotation settings for <tt>/var/log/messages</tt> log file		In this example I will how to configure specific rotation settings for <tt>/var/log/messages</tt> log file

	==~~= Main~~ /etc/logrotate.conf ~~configuration file (note ''~~include~~'' statements)===~~		= Configuration file logrotate.conf =
			The main configuration file is <code>/etc/logrotate.conf</code>, it has <code>include /etc/logrotate.d</code> statement to include application logs rather then system logs.
	<source lang=bash>		<source lang=bash>
	$ sudo vi /etc/logrotate.conf		$ sudo vi /etc/logrotate.conf
Line 27:		Line 28:
	rotate 1		rotate 1
	}		}
			</source>
			== <code>logrotate</code> Tomcat <code>catalina.out</code> file ==
			<source lang=bash>
	$ sudo vi /etc/logrotate.d/tomcat #this file is read by 'include /etc/logrotate.d'		$ sudo vi /etc/logrotate.d/tomcat #this file is read by 'include /etc/logrotate.d'
	/{PATH_TO_CATALINA_FILE}/catalina. {		/{PATH_TO_CATALINA_FILE}/catalina. {
	daily		daily
	rotate 7		rotate 7
	compress		compress
	missingok		missingok
	size 100M		size 100M
	copytruncate #truncates the original log file in place after creating a copy,		copytruncate #truncates the original log file in place after creating a copy,
	#instead of moving the old log file and optionally creating a new one.		#instead of moving the old log file and optionally creating a new one.
	}		}
	</source>		</source>

	=~~== Syslog~~ rotation config ===		= <code>syslog</code> rotation config =
	<tt>/var/log/messages</tt> log files have been rotated by general logrotate config file <tt>/etc/logrotate.d/syslog</tt>		<tt>/var/log/messages</tt> log files have been rotated by general logrotate config file <tt>/etc/logrotate.d/syslog</tt>
	[root@host1]# cat /etc/logrotate.d/syslog		<source lang=bash>
	/var/log/cron		[root@host1]# cat /etc/logrotate.d/syslog
	/var/log/maillog		/var/log/cron
	/var/log/messages #needs removing from multiple log rotation config		/var/log/maillog
	/var/log/secure		/var/log/messages #needs removing from multiple log rotation config
	/var/log/spooler		/var/log/secure
	{		/var/log/spooler {
	~~sharedscripts~~		sharedscripts
	postrotate		postrotate
	/bin/kill -HUP `cat /var/run/syslogd.pid 2> /dev/null` 2> /dev/null \|\| true		/bin/kill -HUP `cat /var/run/syslogd.pid 2> /dev/null` 2> /dev/null \|\| true
	endscript		endscript
	}		}
			</source>
			= <code>root messages</code> rotation config =
			Create a new config file in <code>/etc/logrotate.d/messages</code> for rotating <code>/var/messages file</code>
			<source lang=bash>
			[root@host1]# sudo vi /etc/logrotate.d/messages
			/var/log/messages {
			weekly #required if forcing to run from -vf
			rotate 4 #required if forcing to run from -vf
			missingok
			dateext
			compress
			postrotate
			/bin/kill -HUP `cat /var/run/syslogd.pid 2> /dev/null` 2> /dev/null \|\| true
			endscript
			}
			</source>
			= Logrotate operations =
			<source lang=bash>
			/usr/sbin/logrotate -d /etc/logrotate.conf #dry run, it show planned actions
			/usr/sbin/logrotate /etc/logrotate.conf #log rotate everything
			</source>

	~~=== Create new config ===~~		= Force to rotate only a single file log ==
	~~Create new config file that contains options for rotating /var/messages file, /etc/logrotate.d/messages~~
	~~[root@host1]# cat /etc/logrotate.d/messages~~
	~~/var/log/messages~~
	{
	~~weekly #required if forcing to run from -vf~~
	~~rotate 4 #required if forcing to run from -vf~~
	~~missingok~~
	~~dateext~~
	~~compress~~
	~~postrotate~~
	~~/bin/kill -HUP `cat /var/run/syslogd.pid 2> /dev/null` 2> /dev/null \|\| true~~
	~~endscript~~
	}

	~~===~~= Force to rotate only a single file log ====
	Force to rotate only /var/log/messages logs. -v verbose, -f force		Force to rotate only /var/log/messages logs. -v verbose, -f force
	$ logrotate -vf /etc/logrotate.d/messages		<source lang=bash>
			$ logrotate -vf /etc/logrotate.d/messages
			</source>
	= Logrotate options =		= Logrotate options =
	;compress :This is used to compress the rotated log file with gzip, before postrotate		;compress :This is used to compress the rotated log file with gzip, before postrotate

Pio2pio: /* Force to rotate only a single file log */

2019-08-01T21:32:45Z

Force to rotate only a single file log

← Older revision		Revision as of 23:32, 1 August 2019
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	$ logrotate -vf /etc/logrotate.d/messages		$ logrotate -vf /etc/logrotate.d/messages

	Logrotate options		= Logrotate options =
	;compress :This is used to compress the rotated log file with gzip, before postrotate		;compress :This is used to compress the rotated log file with gzip, before postrotate
	;nocompress : This is used when you do not want to compress rotated log files.		;nocompress : This is used when you do not want to compress rotated log files.

Pio2pio: /* Main /etc/logrotate.conf configuration file (note include statements) */

2019-08-01T21:30:57Z

Main /etc/logrotate.conf configuration file (note include statements)

← Older revision		Revision as of 23:30, 1 August 2019
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	=== Main /etc/logrotate.conf configuration file (note ''include'' statements)===		=== Main /etc/logrotate.conf configuration file (note ''include'' statements)===
	~~[root@host1]# cat~~ /etc/logrotate.conf		<source lang=bash>
	# see "man logrotate" for details		$ sudo vi /etc/logrotate.conf
	# rotate log files weekly		#see "man logrotate" for details
	~~weekly~~		weekly #rotate log files weekly
			rotate 4 #keep 4 weeks worth of backlogs
			create #create new (empty) log files after rotating old ones
			dateext #use date as a suffix of the rotated file
			#compress #uncomment this if you want your log files compressed

	~~# keep 4 weeks worth of backlogs~~		include /etc/logrotate.d #RPM packages drop log rotation
	~~rotate 4~~		#information into this directory
			#no packages own wtmp and btmp -- we'll rotate them here
	~~# create new (empty) log files after rotating old ones~~
	~~create~~

	~~# use date as a suffix of the rotated file~~
	~~dateext~~

	~~# uncomment this if you want your log files compressed~~
	~~#compress~~

	# RPM packages drop log rotation information into this directory
	~~include /etc/logrotate.d~~

	# no packages own wtmp and btmp -- we'll rotate them here
	/var/log/wtmp {		/var/log/wtmp {
	monthly		monthly
	create 0664 root utmp		create 0664 root utmp
	minsize 1M		minsize 1M
	rotate 1		rotate 1
	}		}
Line 36:		Line 27:
	rotate 1		rotate 1
	}		}

			$ sudo vi /etc/logrotate.d/tomcat #this file is read by 'include /etc/logrotate.d'
			/{PATH_TO_CATALINA_FILE}/catalina. {
			daily
			rotate 7
			compress
			missingok
			size 100M
			copytruncate #truncates the original log file in place after creating a copy,
			#instead of moving the old log file and optionally creating a new one.
			}
			</source>

	=== Syslog rotation config ===		=== Syslog rotation config ===

Pio2pio at 14:11, 5 October 2016

2016-10-05T14:11:38Z

← Older revision		Revision as of 16:11, 5 October 2016
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			In this example I will how to configure specific rotation settings for <tt>/var/log/messages</tt> log file

			=== Main /etc/logrotate.conf configuration file (note ''include'' statements)===
			[root@host1]# cat /etc/logrotate.conf
			# see "man logrotate" for details
			# rotate log files weekly
			weekly

			# keep 4 weeks worth of backlogs
			rotate 4

			# create new (empty) log files after rotating old ones
			create

			# use date as a suffix of the rotated file
			dateext

			# uncomment this if you want your log files compressed
			#compress

			# RPM packages drop log rotation information into this directory
			include /etc/logrotate.d

			# no packages own wtmp and btmp -- we'll rotate them here
			/var/log/wtmp {
			monthly
			create 0664 root utmp
			minsize 1M
			rotate 1
			}

			/var/log/btmp {
			missingok
			monthly
			create 0600 root utmp
			rotate 1
			}

			=== Syslog rotation config ===
			<tt>/var/log/messages</tt> log files have been rotated by general logrotate config file <tt>/etc/logrotate.d/syslog</tt>
			[root@host1]# cat /etc/logrotate.d/syslog
			/var/log/cron
			/var/log/maillog
			/var/log/messages #needs removing from multiple log rotation config
			/var/log/secure
			/var/log/spooler
			{
			sharedscripts
			postrotate
			/bin/kill -HUP `cat /var/run/syslogd.pid 2> /dev/null` 2> /dev/null \|\| true
			endscript
			}

			=== Create new config ===
			Create new config file that contains options for rotating /var/messages file, /etc/logrotate.d/messages
			[root@host1]# cat /etc/logrotate.d/messages
			/var/log/messages
			{
			weekly #required if forcing to run from -vf
			rotate 4 #required if forcing to run from -vf
			missingok
			dateext
			compress
			postrotate
			/bin/kill -HUP `cat /var/run/syslogd.pid 2> /dev/null` 2> /dev/null \|\| true
			endscript
			}

			==== Force to rotate only a single file log ====
			Force to rotate only /var/log/messages logs. -v verbose, -f force
			$ logrotate -vf /etc/logrotate.d/messages

	Logrotate options		Logrotate options
	;compress :This is used to compress the rotated log file with gzip, before postrotate		;compress :This is used to compress the rotated log file with gzip, before postrotate

Pio2pio at 13:58, 5 October 2016

2016-10-05T13:58:40Z

← Older revision		Revision as of 15:58, 5 October 2016
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	Logrotate options		Logrotate options
	;compress :This is used to compress the rotated log file with gzip.		;compress :This is used to compress the rotated log file with gzip, before postrotate
	;nocompress : This is used when you do not want to compress rotated log files.		;nocompress : This is used when you do not want to compress rotated log files.
	;copytruncate : This is used when processes are still writing information to open log files. This option copies the active log file to a backup and truncates the active log file.		;copytruncate : This is used when processes are still writing information to open log files. This option copies the active log file to a backup and truncates the active log file.
Line 6:		Line 6:
	;create mode owner group : This rotates the log file and creates a new log file with the specified permissions, owner, and group. The default is to use the same mode, owner, and group as the original file.		;create mode owner group : This rotates the log file and creates a new log file with the specified permissions, owner, and group. The default is to use the same mode, owner, and group as the original file.
	;nocreate : This prevents the creation of a new log file.		;nocreate : This prevents the creation of a new log file.
			;missingok - don't return error if the log file is missing
	;delaycompress : When used with the compress option, the rotated log file is not compressed until the next time it is cycled.		;delaycompress : When used with the compress option, the rotated log file is not compressed until the next time it is cycled.
	;nodelaycompress : This overrides delaycompress. The log file is compressed when it is cycled.		;nodelaycompress : This overrides delaycompress. The log file is compressed when it is cycled.

Pio2pio: Created page with "Logrotate options ;compress :This is used to compress the rotated log file with gzip. ;nocompress : This is used when you do not want to compress rotated log files. ;copytrunc..."

2016-10-05T13:57:10Z

Created page with "Logrotate options ;compress :This is used to compress the rotated log file with gzip. ;nocompress : This is used when you do not want to compress rotated log files. ;copytrunc..."

New page

Logrotate options
;compress :This is used to compress the rotated log file with gzip.
;nocompress : This is used when you do not want to compress rotated log files.
;copytruncate : This is used when processes are still writing information to open log files. This option copies the active log file to a backup and truncates the active log file.
;nocopytruncate : This copies the log files to backup, but the open log file is not truncated.
;create mode owner group : This rotates the log file and creates a new log file with the specified permissions, owner, and group. The default is to use the same mode, owner, and group as the original file.
;nocreate : This prevents the creation of a new log file.
;delaycompress : When used with the compress option, the rotated log file is not compressed until the next time it is cycled.
;nodelaycompress : This overrides delaycompress. The log file is compressed when it is cycled.
;errors address : This mails logrotate errors to an address.
;ifempty : With this, the log file is rotated even if it is empty. This is the default for logrotate.
;notifempty : This does not rotate the log file if it is empty.
;mail address : This mails log files that are cycled to an address. When mail log files are cycled, they are effectively removed from the system.
;nomail : When mail log files are cycled, a copy is not mailed.
;olddir directory : With this, cycled log files are kept in the specified directory. This directory must be on the same filesystem as the current log files.
;noolddir : Cycled log files are kept in the same directory as the current log files.
;prerotate/endscript : These are statements that enclose commands to be executed prior to a log file being rotated. The prerotateand endscript keywords must appear on a line by themselves.
;postrotate/endscript : These are statements that enclose commands to be executed after a log file has been rotated. The postrotateand endscript keywords must appear on a line by themselves.
;daily : This is used to rotate log files daily.
;weekly : This is used to rotate log files weekly.
;monthly : This is used to rotate log files monthly.
;rotate count : This specifies the number of times to rotate a file before it is deleted. A count of 0 (zero) means no copies are retained. A count of 5 means five copies are retained.
;tabootext [+] list : This directs logrotate to not rotate files with the specified extension. The default list of extensions is .rpm-orig, .rpmsave, v, and ~.
;size size : With this, the log file is rotated when the specified size is reached. Size may be specified in bytes (default), kilobytes (sizek), or megabytes (sizem).

= References =
*[http://www.thegeekstuff.com/2010/07/logrotate-examples/ The Ultimate Logrotate Command Tutorial with 10 Examples] The geek stuff