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Elzo Valugi
Asked: 2010-11-24 06:04:47 +0800 CST

7zip error - can not open output file

  • 772

I am trying to unzip a 7zip file from the command line like this, but I get an error with using e or x parameters. The file has only 1 .dat file inside. I get the following error.

valugi@valugi-desktop:/$ 7z x /var/www/site/data/7zip/eu/
Processing archive: /var/www/site/data/7zip/eu/file.7z
can not open output file file.dat
Skipping    file.dat

Sub items Errors: 1

I can open the file if I am opening it with the File Roller desktop application, but I want to use the command line, as I want to integrate this into a PHP script.

How can I find out what is generating this error and how can I fix it?

Thanks

archive

2 Answers

  1. Best Answer

    The key is here:

    valugi-desktop:/$

    You are on the root directory, you will need superuser privileges to write to var.

    Just try:

    sudo 7z x /var/www/site/data/7zip/eu/

    Or,if the script is going to be called by another user.

    sudo -u username 7z x /var/www/site/data/7zip/eu/
    • 5

  2. The part about "can not open output file" suggests writing the target file is a problem.

    1. Check that you have sufficient space in the output directory to take the unzipped file.
    2. Confirm compressed file integrity with "7z t /var/www/site/data/7zip/eu/file.7z"
      • this second point is probably just for your confirmation.
    • 1