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Bitwise logical operators: & (AND) | (OR) ^ (XOR) operate on two numbers expressed in 32-bit integer form and perform indicated logical operation on each bit separately
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<< is bitwise left shift discarding bits at left (high order) and zero filling at right
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>> is bitwise right shift propagating the sign bit in high order (position 31)
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>>> is zero fill right shift with no special treatment of sign bit
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Boolean operators are && (AND), || (OR), ! (NOT) and can only operate on boolean variables that are true or false
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Relational operators are == > >= < <= != which can be used on numeric or string variables
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Concatenation operator (+) joins two strings together:
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x = "Hello "; y = "World!";
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// x + y is "Hello World!"
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Note + is written . in PERL
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