untar [.tar or .tar.gz file] [destination directory]

[root@sylixos:/root]# help untar          
extract a .tar or .tar.gz file.
eg. untar example.tar /
    untar example.tar.gz
    untar tools.tar.gz /bin
untar [.tar or .tar.gz file] [destination directory]
[root@sylixos:/root]# 

[root@sylixos: /home]# untar b.tar.gz
unpackage test.c size: 356 ...
unpackage a.out size: 4754 ...
unpackage total 2 files O directory.
[root@sylixos: /home]#