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Full Discussion: using sed to get IP-address
Top Forums Shell Programming and Scripting using sed to get IP-address Post 302248150 by eeriale on Friday 17th of October 2008 04:37:03 AM
Old 10-17-2008
using sed to get IP-address

Hi folks!

I need to get an ip address of a string that has the same apperance in every case. The string looks like this:

$node="node_ip:109.50.89.211; node:j20"

What I want to do is to extract the IP-address from this string using regular expression. Since I havn't worked much with regexp's I dont really know how to tackle this.

However, if one is able to extract ip from the pattern:
[0-9]{1-3 digits}.[0-9]{1-3 digits}.[0-9]{1-3 digits}.[0-9]{1-3 digits}
somehow...

Does any of you know how to do this?
 

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PLGXAX(3plplot) 						    PLplot API							   PLGXAX(3plplot)

NAME
plgxax - Get x axis parameters SYNOPSIS
plgxax(digmax, digits) DESCRIPTION
Returns current values of the digmax and digits flags for the x axis. digits is updated after the plot is drawn, so this routine should only be called after the call to plbox(3plplot) (or plbox3(3plplot)) is complete. See the PLplot documentation for more information. Redacted form: plgxax(digmax, digits) This function is used in example 31. ARGUMENTS
digmax (PLINT *, output) Pointer to variable with the maximum number of digits for the x axis. If nonzero, the printed label has been switched to a floating point representation when the number of digits exceeds digmax. digits (PLINT *, output) Pointer to variable with the actual number of digits for the numeric labels (x axis) from the last plot. AUTHORS
Geoffrey Furnish and Maurice LeBrun wrote and maintain PLplot. This man page was automatically generated from the DocBook source of the PLplot documentation, maintained by Alan W. Irwin and Rafael Laboissiere. SEE ALSO
PLplot documentation at http://plplot.sourceforge.net/resources. August, 2012 PLGXAX(3plplot)
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