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I have a file that is compressed. I used a program to find out what kind of file it is and it says that it's a gpg file. How do you uncompress a gpg file?

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4 Answers 4

GPG is a free implementation of the OpenPGP standard: http://www.gnupg.org

It is used to encrypt and sign files not to compress them.

You do not state which system you are using but Google will help to find a free GPG implementation for your platform.

If you are using Linux you can for example:

$ gpg --output destination --decrypt sourcefile.gpg

but you will need the proper key.

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If I recall completely, a 'gpg' file is encrypted rather than compressed.
What you need to do is use the gnupg tool to decrypt it -- of course using a key.
Or, its the security key file itself. In which case there is not data here, just the key to decrypt other encrypted data.

The decrypted file may then itself be compressed/archived in some other format,
which can be used to open its contents.

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gpg, by default, compresses all encrypted data with zlib – to be more specific: zlib level 6 – which is similar to gzip. i recommend trying gunzip or gpg with the right key to decompress the file. please let me know weather this works or not. thanks

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Use gunzip or bzip2 depending what is being used to archived the file.

gunzip

for hass.txt.gz, or hass.txt.Z use it like this:

gunzip hass.txt.gz or gunzip hass.txt.Z. Depending on tar file.

bzip2

for hass.txt.bz2:

bzip2 -d hass.txt.bz2 to unzip the file.

The -d in bzip2 stands for Decompressing the file. You must include it if you want to decompress such type of file.

check bzip2 --help or gunzip --help for more information on Ubuntu or Debian.

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GPG is not a compression algorithm. The file is encrypted. Listing random compression tools will not help. –  Matteo Nov 2 '12 at 14:16
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