Perl substr or similar help Post: 303025182

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Top Forums Shell Programming and Scripting Perl substr or similar help Post 303025182 by azdps on Friday 26th of October 2018 07:59:04 AM

10-26-2018

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From my OpenBSD firewall I use PERL to reboot my cable modem around 3:00 am. I do this daily to obtain a new IP from my ISP otherwise I end up with a static IP for weeks. The procedure I use:

Send modem GET command with username and password to login. (unable to send a POST only GET)
After login send GET command to get webpage (HTML) that contains the sessionKey.
Note: I parse this page using PERL to get the sessionKey. (token value)
Send POST command to modem with sessionKey and reboot command to reboot modem. (sessionKey is required)

PERL is installed in the base install of OpenBSD. So I use this along with PERL module HTTP::Tiny to achieve the above. I was using PERL module HTML::TokeParser::Simple to parse the webpage (HTML) from the GET command I send to obtain the sessionKey (token value) that I send in my POST command.

The reason I asked the question reference parsing the HTML using PERL is that by default HTML::TokeParser::Simple isn't installed on OpenBSD by default and I had to install that as a package. I was just trying to find another means.

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LEARN ABOUT CENTOS

tapset::string

tapset::string(3stap)													     tapset::string(3stap)

NAME

       tapset::string - systemtap string tapset

DESCRIPTION

       strlen Returns the length of a string

	      See function::strlen(3stap)
	       for details.

       substr Returns a substring

	      See function::substr(3stap)
	       for details.

       stringat
	      Returns the char at a given position in the string

	      See function::stringat(3stap)
	       for details.

       isinstr
	      Returns whether a string is a substring of another string

	      See function::isinstr(3stap)
	       for details.

       text_str
	      Escape any non-printable chars in a string

	      See function::text_str(3stap)
	       for details.

       text_strn
	      Escape any non-printable chars in a string

	      See function::text_strn(3stap)
	       for details.

       - strtol
	      Convert a string to a long

	      See function::-strtol(3stap)
	       for details.

       isdigit
	      Checks for a digit

	      See function::isdigit(3stap)
	       for details.

SEE ALSO

	 function::strlen(3stap),    function::substr(3stap),	function::stringat(3stap),  function::isinstr(3stap),  function::text_str(3stap),
       function::text_strn(3stap),  function::-(3stap),  function::strtol(3stap),  function::isdigit(3stap),  stap(1), stapprobes(3stap)

IBM
									---						     tapset::string(3stap)