linux - gzip: stdin: not in gzip format tar: Child returned status 1 tar: Error is not recoverable: exiting now

Linux - gzip: stdin: not in gzip format tar: Child returned status 1 tar: Error is not recoverable: exiting now

The error message "gzip: stdin: not in gzip format tar: Child returned status 1 tar: Error is not recoverable: exiting now" typically indicates that tar tried to extract a file that was expected to be in gzip format, but it wasn't. This can happen if you mistakenly try to extract a non-gzipped file using tar with the -z option, which expects gzip-compressed input.

To resolve this issue, ensure that you're providing the correct input file to tar:

  1. Check File Extension: Verify the file extension of the file you're trying to extract. If it's not a .tar.gz or .tgz file, it may not be gzip-compressed.

  2. Confirm File Content: Check the content of the file using a text editor or the file command in Linux to confirm whether it's gzip-compressed or not.

    file your_file.tar.gz

  3. Extract Without -z Option: If the file is not gzip-compressed, you can simply extract it using tar without the -z option.

    tar -xf your_file.tar

  4. Check File Integrity: If the file is expected to be gzip-compressed but appears to be corrupt, verify its integrity and try downloading or transferring it again.

Examples

  1. How to fix "gzip: stdin: not in gzip format" error when extracting a tar.gz file

    Description: This error typically occurs when the file you're trying to extract is not a valid gzip archive. Check the file format before attempting to extract it.

    Code:

    # Check the file type file yourfile.tar.gz # If it is not a gzip file, try extracting it without gzip tar -xf yourfile.tar.gz

  2. Why do I get "gzip: stdin: not in gzip format" when using tar?

    Description: The file might be corrupt or not actually a gzip file. Verify the integrity of the file.

    Code:

    # Verify file integrity gzip -t yourfile.tar.gz # If the test fails, the file might be corrupt or not a gzip file

  3. Decompressing a tar.gz file gives "gzip: stdin: not in gzip format" error

    Description: Ensure that the file you're trying to decompress is indeed a .tar.gz file and not just a .tar file or some other format.

    Code:

    # Rename the file if it has a wrong extension mv yourfile.tar.gz yourfile.tar # Extract without gzip tar -xf yourfile.tar

  4. Handling "gzip: stdin: not in gzip format" error in shell scripts

    Description: In shell scripts, handle the error by checking the file type before extraction.

    Code:

    # Shell script to check file type before extraction FILE="yourfile.tar.gz" if file "$FILE" | grep -q 'gzip compressed data'; then tar -xzf "$FILE" else echo "Error: $FILE is not a valid gzip file." fi

  5. Extracting a tar.gz file without gzip: stdin error

    Description: Use gunzip to manually decompress the file before extracting it with tar.

    Code:

    # Decompress the file manually gunzip yourfile.tar.gz # Extract the resulting tar file tar -xf yourfile.tar

  6. Debugging "tar: Child returned status 1" error

    Description: The error can be debugged by checking if the input file is a valid gzip archive and using the appropriate tar options.

    Code:

    # Check if the file is a valid gzip file file yourfile.tar.gz # If valid, extract it tar -xzf yourfile.tar.gz # If not, rename and extract without gzip mv yourfile.tar.gz yourfile.tar tar -xf yourfile.tar

  7. Preventing "gzip: stdin: not in gzip format" error in data pipelines

    Description: Validate the file format in data pipelines to prevent errors during processing.

    Code:

    # Example of a data pipeline script FILE="yourfile.tar.gz" if file "$FILE" | grep -q 'gzip compressed data'; then tar -xzf "$FILE" else echo "Skipping invalid gzip file: $FILE" fi

  8. Resolving tar extraction issues with gzip format errors

    Description: Ensure that the downloaded file is complete and not truncated.

    Code:

    # Verify the completeness of the downloaded file wget -c http://example.com/yourfile.tar.gz # Extract the file after ensuring it's completely downloaded tar -xzf yourfile.tar.gz

  9. Checking file integrity before extraction to avoid gzip errors

    Description: Use md5sum or sha256sum to verify file integrity before extraction.

    Code:

    # Generate or compare checksum to verify integrity md5sum yourfile.tar.gz # Compare with expected checksum echo "expected_md5_checksum yourfile.tar.gz" | md5sum -c - # If checksums match, extract the file tar -xzf yourfile.tar.gz

  10. Using alternative tools to extract tar.gz files with format issues

    Description: Use alternative tools like 7z to handle and extract problematic files.

    Code:

    # Install p7zip if not already installed sudo apt-get install p7zip-full # Use 7z to extract the file 7z x yourfile.tar.gz # Extract the resulting tar file tar -xf yourfile.tar

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