Scenario

Some large files will fail to be transferred due to the long time when using the scp command in SHELL to transfer the client computer that opens the SHELL window.night time), delete the timing plan in the crontab after the copy is completed;

Format of crontab:

• Points (0-59)
• hours (0-23)
• Date (1-31)
• Month (1-12)
• Day of the week (0-6, 0 is Sunday)
• Specific commands

crontab query command:

crontab -l

crontab editing command:

crontab -e

1 19 1 8 1 /usr/bin/scp /data/file1.tar.gz [email protected]_server_ip:/home/data-bak/1 20 1 8 1 /usr/bin/scp /data/file2.tar.gz [email protected]_server_ip:/home/data-bak/ 

Set password-free login

You also need to configure password-free login to automatically execute the copy command

Run on the server where crontab is set up:

ssh-keygen -t rsa -P '' -f ~/.ssh/id_rsa

ssh-copy-id [email protected]_server_ip