Answer Posted / virendra

1 > if it is compressed (.Z)

#uncompress file.Z

2 > if it is ziped (.zip )
#unzip file.zip

3 > if it is gziped (.gzip)
#gunzip file.gz

4> if it is bzip2 (.bz2)
#bunzip file.bz2


#tar based compression

#creation of gziped tar
#tar zcvf file.tar.gz /home
#extracing of this file

#tar zxvf file.tar.gz


for bzip z will be replaced by j

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