Unable to make temporary file: Permission denied [FIXED]

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In this article, we have present a solution to the problem "Unable to make temporary file: Permission denied". The solution is to set the correct file permissions in /tmp directory. This is a critical problem as using sudo in command does not work.

Table of contents:

  1. Error
  2. Solution


Replicate the error:

Assume you have a code "code.cc" which creates a file in the temporary directory /tmp. You will get the error if the /tmp directory does not have right permissions.


Unable to make temporary file: Permission denied

This can come if:

  • You deleted /tmp and recreated it with default parameters like
mkdir /tmp


Using sudo to run your code will not solve the issue.

To fix the issue, run the following command in terminal:

sudo chmod -R 1777 /tmp

1777 means:

  • 1 = sticky bit
  • 7 = Read + Write + Execute

With this article at OpenGenus, you must be able to fix this issue.