Unix Tip #4644- November 28, 2013


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REGULAR EXPRESSION FOR FLOATING POINT NUMBER


This the Regular expression for floating point numbers and
this can be used with grep or egrep for searching
floating point numbers in any text file.

(\+|-)?([0-9]+\.?[0-9]*|\.[0-9]+)([eE](\+|-)?[0-9]+)?



This tip generously supported by: udayk@india.hp.com


NOTE: All tips provided are USE AT YOUR OWN RISK. Tips are submitted by various unix admins around the globe. UGU suggest you read and test each tip in a non-volitile environment before placing into production.


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