Most binary operators are the same as in C. Unary operators (e.g. -1) are not supported, so just use (0-n) for negative numbers. Operator precedence is the same as C. You can use parentheses to group expressions.
| Operator | Meaning |
|
add and subtract |
|
multiply and divide |
|
Invert or "Not". E.g. !True equals False. |
|
logical OR operation |
|
logical AND operation |
|
logical NOT EQUAL operation |
|
logical EQUAL operation |
|
less than |
|
greater than |
|
less than or equal to |
|
greater than or equal to |
|
string concatenation |
|
variable expansion - used inside of quoted strings to expand a variable in the string. |
Conditional operators are treated thus for variables:
| Operator | Meaning |
|
strings must be equal (case sensitive) |
|
strings must not be equal (case sensitive) |
|
strings converted to numbers and then compared. Empty strings or strings that are non-numeric result in a zero value. |
