Re: shell script cgi (summary?)

[Philip Rowlands <phr () doc ic ac uk>]

On Tue, 19 Nov 2002, Brian Fury wrote:

> > ua=`echo "$HTTP_USER_AGENT" | sed "s#\;##g"`
>
> [root@localhost lib]# export LAME=""whoami""""
> [root@localhost lib]# `echo "$LAME" | sed "s#\;##g"`
> root

Well yes, if you run it directly. The initial question was about
variable assignment.

Your example in context:

$ cat cgiscript
ua=`echo "$HTTP_USER_AGENT" | sed "s#\;##g"`
$ export HTTP_USER_AGENT=""whoami""""
$ sh -x ./cgiscript
++ echo whoami
++ sed 's#\;##g'
+ ua=whoami

All those quotes around ""whoami"""" cancel out, BTW. The shell sees:
<export><SP><LAME><=><""><whoami><""><"">


Cheers,

Phil