I included the WRONG sed script with the original message.
Attached is the correct one--that is, the one that creates the fuss--, with the (obviously) missing RE.
Sorry to waste your time on that--I had been doing a lot of testing and forgot I fiddled with the script.
Thanks,
Dwight Neal
-----Original Message-----
From: Peter S Tillier [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, January 08, 2003 4:57 PM
To: Dwight Neal; [EMAIL PROTECTED]
Subject: Re: Sed Script works in 3.02-1, fails in 4.0.1-1
----- Original Message -----
From: "Dwight Neal" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Wednesday, January 08, 2003 7:33 PM
Subject: Sed Script works in 3.02-1, fails in 4.0.1-1
> I am migrating from a machine that uses a cygwin image loaded in May
2002 to
> one that uses a November 2002 download, and have a sed script that
fails in
> the newer version:
>
> (This should be a single line of input, but I'm sure it will wrap when
> emailed):
>
> sed -f modifyhtm.txt "\Web Configuration\Default_installing.htm"
> >results\Default_installing.htm
>
> The error reported is:
>
> 'sed: file modifyhtm.txt line 1: No previous regular expression'
>
As modifyhtm.txt contains:
s//<font><\/font><\/BLOCKQUOTE>/
the reason for the error message is obvious. The // refers to a previously-compiled RE and there isn't one. This is an error in your script, not sed 4.0.1-1 and should also give the same error message with sed 3.02-1.
As Randall says using / separators in s commands when slashes are part of the RE is tricky. You can use pretty much any separator other than a backslash.
HTH
Peter S Tillier
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