Ubuntu – 7zip error – can not open output file

archive

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

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/
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