[Linux tips] use the tar-G parameter for incremental + differential backup and Restoration

Author: gnuhpc
Source: http://www.cnblogs.com/gnuhpc/

Full backup:

# Create a test path and file
Mkdir Test
Touch test/{a, B, c}
Generate three files under test

# Complete backup
Tar-G snapshot-zcf backup_full.tar.gz Test

# Viewing tarball content
Tar ztf backup_full.tar.gz
Test/
Test/
Test/B
Test/C

Differential + Incremental Backup:

# Add a new file and modify the File Content
Touch test/E
Echo 123> test/

# Perform the second Incremental Backup (note the tarball file name)
Tar-G snapshot-zcf backup_incremental_2.tar.gz Test

# Viewing tarball content
Tar ztf backup_incremental_2.tar.gz
Test/
Test/
Test/E

Restore backup data:

# Clear test materials
Rm-RF Test

# Start data restoration
Tar zxf backup_full.tar.gz
Tar zxf backup_incremental_1.tar.gz
Tar zxf backup_incremental_2.tar.gz

# View test materials
Ls Test
A B C D E

 

Author: gnuhpc
Source: http://www.cnblogs.com/gnuhpc/