Addition, subtraction, multiplication, division
Bitwise AND, bitwise OR, bitwise exclusive OR
Bitwise shift right, bitwise shift left
Logical OR, logical AND
Concatenation of two strings
Returns a string or array consisting of the left operand (an array or a string) repeated the number of times specified by the right operand.
All of the above operators have an associated assignment operator, e.g., .=
Negation (unary), bitwise complement (unary)
Auto-increment (magical on strings), auto-decrement
Numeric equality, inequality
|eq||ne||String equality, inequality|
Numeric less than, greater than
|lt||gt||String less than, greater than|
Numeric less (greater) than or equal to
String less (greater) than or equal to
Numeric (string) compare. Returns -1, 0, or 1.
Search pattern, substitution, or translation (negated)
Range (scalar context) or enumeration (array context)
Alternation (if-then-else) operator
Comma operator, also list element separator. You can also use =>
Low-precedence OR, exclusive OR
All Perl functions can be used as list operators, in which case they have either very high or very low precedence, depending on whether you look at the left or the right side of the operator. Only the operators not, and, or, and xor have lower precedence.
A "list" is a list of expressions, variables, or lists. An array variable or an array slice may always be used instead of a list.
Parentheses can be added around the parameter lists to avoid precedence problems.