[Techtalk] Bash builtin "read" isn't working like I expect

Megan Golding mgolding at sdf.lonestar.org
Thu Oct 30 17:49:12 EST 2003

On Thu, Oct 30, 2003 at 05:07:31PM +0100, Dominik Schramm wrote:
> MAYBE... If $LINE contains "special" characters, this may
> be misinterpreted by the shell which parses the expressesions between
> do and done before executing them.
> E.g. if $LINE=="hey you" and $other-file="myfile" (without "")
> the resulting command is
>    grep hey you myfile
> "you" is interpreted as another file, and if it doesn't exist, grep exits.
> I'd use
>    grep "$LINE" $other-file

Great pointer, Dominik. I didn't even think of grep getting broken up with spaces in $LINE.

So, now I have:

while read LINE; do echo $LINE; grep "$LINE" master.csv; done < client.txt

Still no dice. For the record, client.txt has entries like this:


(That is, the lines are domain names. The worst problem could be the "." in each domain name. No "@" signs. No spaces.)

I think we/I'm getting closer to a solution. Any other pointers?


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