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Biology Articles » Bioinformatics » Introductory Workbook on Perl for Biology Students » II. Perl Notation

II. Perl Notation
- Introductory Workbook on Perl for Biology Students

S.N.

SYMBOL/

NUMERIC OPERATOR     

TEST/

OPERATION

1

==

Equals

2

!=

Not equals

3

Less than

4

Greater than

5

<=

Less than or equals

6

>=

Greater than or equals

7

++

Increment

8

--

Decrement

9

**

Exponent

10

+

Addition

11

-

Subtraction

12

.

String concatenate

13

*

Multiplication

14

/

Division

15

%

Modulus

16

x

String repeat

17

=>

 

18

? , !

Conditional Operators

19

\n

New line

 

20

\r

Return

21

\s

Space

 

22

\t

Tab

 

23

$!

Error

 

24

$_

Default variable


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