Linux Add timed Task command Crontab-e__linux

Restart TeamViewer every two hours to prevent the outside of the console execution: CRONTAB-E//Enter the Timer edit page, add the following command, Control+c!wq save 0 */2 * * * TeamViewer Deamon
0 */2 * * * echo "Have a break now." >>/tmp/test.txt separated by spaces or tabs between each domain. The format is as follows: minuteHour Day-of-monthMonth-of-year Day-of-weekCommands legal value 00-59 00-23 01-31 01-12 0-6 (0 is Sunday) commands (represents the script to execute)



A few examples: every morning at 6, 0 6 * * * echo "Good morning." >>/tmp/test.txt//Note pure echo, no output from the screen because cron emails any output to Root's mailbox.
Every two hours 0 */2 * * echo "Have a break now." >>/tmp/test.txt
Between 11 o'clock and 8 a.m. every two hours and morning eight 0 23-7/2,8 * * * echo "Have a good Dream" >>/tmp/test.txt
Number 4th per month and weekly Monday to Monday three morning 11, 0 4 * 1-3 command line
January 1 Morning 4 0 4 1 1 * command line Shell=/bin/bash path=/sbin:/bin:/usr/sbin:/usr/bin mailto=root//If there is an error, or there is data output, the data is sent as a message to this An account home=/
Execute script within/etc/cron.hourly per hour * * * * Root run-parts/etc/cron.hourly Daily Execute Script 4 * * * * root run-parts/et in/etc/cron.daily C/cron.daily
Execute/etc/cron.weekly script per week 4 * * 0 root run-parts/etc/cron.weekly
Every month to execute the script in/etc/cron.monthly 4 1 * * Root run-parts/etc/cron.monthly
Note: "Run-parts" This parameter, if you remove this parameter, then you can write a script to run the name, not the folder name.
Every day 4 o'clock in the afternoon, 5 points, 6 points 5 min, min, min, min, min, Min, when the implementation of the order. 5,15,25,35,45,55 16,17,18 * * * command
Every Monday, three, five 3:00 system into the maintenance state, reboot the system. * * 1,3,5 shutdown-r +5
10 minutes per hour, 40 minutes. Innd/bbslin This instruction under User directory: 10,40 * * * * * * Innd/bbslink
1 minutes per hour to execute the Bin/account in the user directory this instruction: 1 * * * * bin/account
Daily 3:20 A.M. Execute two instructions (each instruction is separated) as shown below in the user directory: 3 * * * (/bin/rm-f expire.ls logins.bad;bin/expire$#@62;expire.1st)
Each year in January and April, 4th to 9th, 3:12 and 3:55, execute/bin/rm-f expire.1st This instruction and add the results after mm.txt this file (mm.txt file is located in the user's own directory location). 12,55 3 4-9 1,4 */bin/rm-f expire.1st$#@62;$#@62;mm.txt