nepsilon/how-to-preserve-user-environment-when-using-sudo.md

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How to preserve user environment when using sudo? — First published in fullweb.io issue #102

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how-to-preserve-user-environment-when-using-sudo.md

How to preserve user environment when using `sudo`?

By Fabien Loudet, Senior SysOps at Rosetta Stone

Say you want to execute a command with elevated privileges (root), but also want to keep your environment variables (HTTP_PROXY for instance).

sudo offers this feature through its -E option, from the manpage:

-E   The -E (preserve environment) option indicates to the 
     security policy that the user wishes to preserve their
     existing environment variables.
     The security policy may return an error 
     if the -E option is specified and the
     user does not have permission to preserve the environment.