Assignment =, +=, -=, *= , %=, ^=, &=, |=, .=
Numeric equality ==, !=, <=>
String equality eq, ne, cmp
Relational numeric > >= < <=
Relational string gt, ge, lt, le
Range 5 .. 10 # range between 5 and 10, increment by 1
Logical &&, and, ||, or, XOR, xor, !
Autoincrement/decrement ++ --
File -r, -w, -x,-o, -e, -z, -s, -f, -d, -l, etc.
Bitwise ~ & | ^ << >>
String concatenation .
String repetition x
Arithmetic * / - + %
Pattern matching =~, !~