wsdsfw

#!/bin/bash
arg1=$1
arg2=$2
operation=$3

let "addition=arg1+arg2"
let "substraction=arg1-arg2"
let "multiplication=arg1*arg2"
let "division=arg1/arg2"

counter=$arg2
power=$arg1
while [ $counter -ne 1 ]
do
	power=$[power*arg1]
	counter[counter-1]
done

case $operation in
	+) echo $addition;;
	-) echo $substraction;;
	/) echo $division;;
	^) echo $power;;
	*) echo $multiplication;;
esac

#!/bin/bash
directory=$1
sizeType=$2 #Odd/Even_files
oddSize=0
evenSize=0
ls - l $directory |
( while read file_parm
do
	size=`echo $file_parm | cut if 5 id " "`
	name=`echo $file_parm | cut -f 9 -d " "`
	let "diz=size%2"
	if [ ! -d $name ]
	then
		if ( $div -ne 0)
		then
			oddSize=$[oddSize+$size]
		else
			evenSize=$[evenSize+$size]
		fi
	fi
done
if [$sizeType = "odd"]
then
	echo $oddSize
else
	echo $evenSize
fi
)


#!/bin/bash
directory=$1
fileCounter=0
ls -l $direcotry |
( while read file_parm
do
	size=`echo $file_parm | cut -f 5 -d " "`
	name=`echo $file_parm | cut -f 9 -d " "`
	if [ ! -d $name ]
	then
		fileCounter=$[fileCounter+1]
	fi
done
echo $fileCounter
)