Why Does My Go Script Produce a \'fork/exec permission denied\' Error on CentOS 6.3, and How Can I Fix It?

Resolving "fork/exec permission denied" Error in Go on CentOS 6.3

Introduction
Go developers may encounter the "fork/exec permission denied" error when running Go scripts. This issue arises specifically when attempting to run non-privileged user scripts. This article explores a solution to this issue.

Problem
A user attempts to execute a "hello world" script in Go and receives the following error:

fork/exec /tmp/go-build967564990/command-line-arguments/_obj/a.out: permission denied

While commands like go env execute correctly, the user experiences the permission denied issue as a non-root user.

Solution
To resolve this issue, follow these steps:

1. Set the TMPDIR environment variable to a writable directory. This can be done using the following command:

   export TMPDIR=~/tmp/

   Copy after login

2. Run the Go script using go run:

   go run hello.go

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Note: This solution requires you to set the TMPDIR variable every time you want to run a Go application.

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