Searching for "<"

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• < Less than. Comparing values as numbers.

• Compare Values - video

• Comparing scalars in Perl

• Comparison Operators - video

• Open and read from text files

• Open file all - video

• The diamond operator <> of Perl

• $<

• Writing Makefile for -- NOT OK

• Escaping \ in regex: Unmatched ( in regex; marked by <-- HERE