/etc/profile optimization and correctness
Mon Nov 29 19:45:00 GMT 2010
On 11/29/2010 8:22 AM, Daniel Colascione wrote:
> Starting a login shell on my system takes a painfully long time, mostly
> because fork() is pretty slow on WOW6432 systems. I've taken a look at
> the shell initialization routines and identified some potential savings:
> - Can't we use USERNAME to set USER instead of running `id -un`?
You can't rely on USERNAME. For example, if I login via ssh using
pubkey authentication, USERNAME is set to SYSTEM on my machine.
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