how to compress linux whole directory

Type the following in your shell command

tar -zcvf callit_what_you_want.tar.gz /directory_u_want_archive
the letter mean the following

-z: Compress archive using gzip program
-c: Create archive
-v: Verbose i.e display progress while creating archive
-f: Archive File name

To uncompress later
typ the following command

$ tar -zxvf directory_u_archived.tar.gz

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