crontab

# for vixie cron
# $Header: /var/cvsroot/gentoo-x86/sys-process/vixie-cron/files/crontab-3.0.1-r4,v 1.2 2009/05/12 09:13:46 bangert Exp $

# Global variables
SHELL=/bin/bash
PATH=/sbin:/bin:/usr/sbin:/usr/bin
MAILTO=root

# check scripts in cron.hourly, cron.daily, cron.weekly and cron.monthly
#59  *  * * *    root	rm -f /var/spool/cron/lastrun/cron.hourly
#9  3  * * *	    root	rm -f /var/spool/cron/lastrun/cron.daily
#19 4  * * 6	    root	rm -f /var/spool/cron/lastrun/cron.weekly
#29 5  1 * *	    root	rm -f /var/spool/cron/lastrun/cron.monthly
#*/10  *  * * *	root	test -x /usr/sbin/run-crons && /usr/sbin/run-crons
# 3 点，关机
#0 3  * * *	root	shutdown -h now
#0 22  * * *	root    emerge --sync &&eix-update&& emerge -uDN world --keep-going	
#每小时更新一次 locate db
#@hourly        root   updatedb 
#@hourly        root   cd /resource/gentoo/distfiles/bzr-src/emacs/trunk ; bzr pull
#@hourly        root   cd /home/jixiuf/.config/awesome                          ; git checkout master  ;git pull ; git push
#@hourly        root   cd /home/jixiuf/documents/org/public_html/               ; git checkout master  ;git pull ; git push
#@hourly        root   cd /home/jixiuf/documents/org/src/                       ; git checkout master  ;git pull ; git push 
#@hourly        root   cd /home/jixiuf/.emacs.d/                                ; git checkout master  ;git pull ; git push ;make compile
#@hourly        root   cd /home/jixiuf/.emacs.d/                                ; make pull;make push ;make compile
#@hourly        root   cd /home/jixiuf/dotfiles/                                ; git checkout master  ;git pull ; git push
#@hourly        root   cd /mnt/d/ahk                                            ; git checkout master  ;git pull ; git push
#@hourly        root   cd /home/jixiuf/c/                                       ; git checkout master  ;git pull ; git push
#@hourly        root   cd /home/jixiuf/ex/                                      ; git checkout master  ;git pull ; git push

# man 5 crontab
#* *  * * *	root	notify-send hello
#* *  * * *	root	echo hel>/tmp/a

# 前 5 个字段,分表表示以下内容
# field          allowed values
# -----          --------------
# minute         0-59           
# hour           0-23
# day of month   1-31
# month          0-12 (or names, see below)
# day of week    0-7 (0 or 7 is Sun, or use names)

# 可取值为* 表示整个范围 , 
# */2 表示每 2 分钟(或每小时,具体视在哪个列)执行一次,

# */10  *  * * *	root	test -x /usr/sbin/run-crons && /usr/sbin/run-crons
# 比如,每 10 分钟

# *  */2  * * *	root	test -x /usr/sbin/run-crons && /usr/sbin/run-crons
# 比如,每 2 小时