Linux uses tar Backup System

Article Title: Linux uses tar to back up the system. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source.

Tar-zcvpf/home/full-backup.tar.gz/-- exclude =/mnt/* -- exclude =/proc/* -- exclude =/sys /*

This command uploads all contents under the root directory to the backup document of full-bakup.tar.gz.

-Z indicates compressed gzip format

-C (create a backup document

-V shows the compression process

-P: Retain file permissions

-- Directory 'specifies a folder that is not backed up

Incremental Backup

1. Create a full backup: tar-czvf-g zeng aa.tar.gz/var

After the data in/var changes

2. Perform Incremental backup again: tar-czvf-g zeng aa.tar.gz. 1/var

Differential backup

1. find/var-mtime-1-print> filelist

List of files to be backed up-1 indicates the time of the day

2. tar-czv-T filelist-f/backup.tar.gz

Backup Based on the file list.-T option can specify a list of files to be backed up