연산자 종류

Bourne Shell

Korn Shell

C Shell

숫자

-lt

<

<

관

(number only)

-gt

>

>

계

-le

<=

<=

연

-ge

>=

>=

산

숫자 or

-eq

==

==

자

문자열

-ne

!=

!=

문자열

=

=

=~ matches

(string only)

!=

!=

!~ does not match

논리연산자

-a(and)

&&

&&

(logical operator)

-o(or)

||

||

!(not)

산술연산자

(Arithmetic Operator)

+,-,*,/,%(mode)

mode 연산자는 몫을 버리고 나머지는 취함

치환연산자

=

(Assignment Operator)

+=,-=,*=,/=,%=,++,--

비트연산자

and

&

&

(Bitwise Operator)

exclusive or

^

^

or

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