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Character Tests and Operations

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(Perl builtin function) chr NUMBER Returns the character represented by that NUMBER in the character set.

(Perl builtin function) lc EXPR Returns an lowercased version of EXPR.

(Perl builtin function) lcfirst EXPR Returns the value of EXPR with the first character lowercased.

(Perl builtin function) ord EXPR Returns the numeric ascii value of the first character of EXPR.

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