Backup in Linux $ tar   cvf    backup.tar  . C = create an archive V = verbose mode f = file name . = current directory Display the content of tar file $ tar  tvf   backup.tar t = table of content To extract tar file $ tar  xvf  backup.tar X = extract Using tar with compression $ tar  zcvf  backup.tgz  . z = gzip compression c = create archive .   = current directory