echo bug?

Smoot Carl-Mitchell smoot at
Sat Sep 12 03:13:32 UTC 2009

On Fri, 2009-09-11 at 22:56 -0400, Jay Daniels wrote:

> Works from root terminal, so it must be a bug in sudo.

No, it is not a bug in sudo.  The redirection is handled before the
shell forks the privileged sudo process. You can do something like this
to get around the issue:

sudo sh -c "echo hello >/etc/zzz"

In this case sudo executes a privileged shell which handles the
redirection and then runs the echo command.
Smoot Carl-Mitchell
Computer Systems and
Network Consultant
smoot at
+1 480 922 7313
cell: +1 602 421 9005

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