Why Am I Getting a \'fork/exec permission denied\' Error When Running My Go Program?

Go Fork/Exec Permission Denied Issue and Solution

When attempting to execute a Go program, you may encounter a "fork/exec permission denied" error. This error can arise on various systems, including CentOS 6.3.

Before diving into a solution, it's important to understand the root cause. The fork/exec error typically indicates that the user lacks sufficient permissions to create a child process and execute the program.

Troubleshooting and Solution

The suggested solution involves setting the TMPDIR environment variable to a custom location. By default, Go creates temporary files in /tmp. If this directory has restrictive permissions, the fork/exec operation may fail.

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

$ export TMPDIR=~/tmp/

This command assigns the ~/tmp directory as the temporary file storage location. Subsequently, execute the Go program using the following command:

$ go run hello.go

You should now be able to run the Go program successfully.

Note: This solution addresses the specific case of restrictive permissions in /tmp. If you encounter the fork/exec error on other systems or under different circumstances, the underlying cause and solution may vary. Consult Go documentation or seek support from the Go community for further guidance.

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