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<
as in "variable < expression".
The less than ( < ) comparison operator is used in comparison expressions. The expression returns true if the variable has a lesser value than the expression after evaluation, false otherwise. The comparison is numeric unless both sides evaluate as strings. For more information, see Comparison Expressions.
Example
if( NF < 10 ) reject; #
Skip lines with fewer than 10 fields.
Last modified date: 01/25/2022