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print $a.$b #string operator prints 2 plus the three or 23
print $a*$b #arithmetic operator prints 6
print $a x $b #string operators prints $a $b times or 2 three times. i
$a-=2; #$a=$a-2; $a is now equal to 3;
$b x=3; #$b=$b x $3 $b is now equal to "xxx";
$b .="33"; #b=$b."33" $b is now equal to "xxx33";
print $a++; #prints a as one then adds 1 to it
print $a; #now $a is 2
print ++$a; #adds one to $a and then prints its value which is now 3;
print $a--; #prints 3 then subtracts one from $a;
By rote learning.
Via Genetic memory.
It's provided by my firmware.
I just remember them.
Thirty days hath September
My computer gets it right, usually.
I just ask someone else.
Someone punches me on the first of the month.
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