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