Compress backup.tar using gzip to create backup.tar.gz. (Check the size before and after compression)

Step 1: Check the Size of backup.tar Before Compression

bashCopyEditls -lh backup.tar

• l → Long listing format

• h → Human-readable sizes (KB, MB, GB)

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Step 2: Compress backup.tar Using gzip

bashCopyEditgzip backup.tar

• This will compress backup.tar into backup.tar.gz and remove the original backup.tar.

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Step 3: Verify the Compressed File

bashCopyEditls -lh backup.tar.gz

• Now you should see backup.tar.gz in the directory.

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Step 4: Compare the File Sizes

To check size before and after compression:

bashCopyEditls -lh backup.tar.gz

• Compare this size with the original backup.tar size.

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Step 5: (Optional) Decompress the File

To extract the .tar.gz file back:

bashCopyEditgunzip backup.tar.gz

• This restores backup.tar and removes backup.tar.gz.

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Now, you've successfully compressed and verified the archive!