Compressing and Archiving files

* gzip & gunzip ( *.gz ) 
* bzip2 & bunzip2 ( *.bz2 )
* zip & unzip ( *.zip )

gzip : The compress program


-d    Uncompressing a “gzipped” file  (  gunzip  <==> gzip -d  )
-r    Recursive compression 



tar : The archival program

For creating a disk archive that contains a grp of file or an entire dir structure.
tar option

-c       Create an archive
-x       Extract file from archive
-t       Diaplay files in archive 
-f arch     Specify the archive arch

Creating an archive ( -c )
$ tar -cvf archive.tar file1 file2      ( c – create, v – diaplay list , f – specify the name )

Extracting an archive ( -x )
$ tar -xvf archive.tar

Viewing the archive ( -t )
$ tar -tvf archive.tar 


 zip & unzip : Compressing and archiving together   


$ zip archive.zip file1 file2 file3
$ unzip archive.zip


-r    ecursive compression
-v    viewing the archive

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