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Old 12-30-2013, 11:28 PM   #1
Registered: Dec 2007
Location: FL, USA
Distribution: CentOS 5.3, Ubuntu 9.04
Posts: 235

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grep error while parsing a page

I have a script that stores the content (php/html) of a webpage into a variable

page="$(wget -qO- link)"
then I grep the page for especific html tag like: iframe in this case
grep -in iframe page
but I'm getting error.

'rep: unrecognized option '-->
Usage: grep [OPTION]... PATTERN [FILE]...
Try 'grep --help' for more information.
Old 12-30-2013, 11:52 PM   #2
Registered: Sep 2011
Location: Trinidad & Tobago
Distribution: Debian Stretch
Posts: 612

Rep: Reputation: 125Reputation: 125
I don't think grep can search for a pattern in a variable. As far as I'm aware it works only on files.

You can echo the variable and pipe it to grep:
echo $page | grep -in "iframe"
Your search terms must be quoted.

Hope it helps.


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