linux programe for finding GCD of two numbers
i am M.Sc. electronics student.please help me in constructing linux program for G.C.D. of two numbers.And also i want logic of this program

A trivial solution to find LCM is as follows:
do { if (a < b) { temp = a ; a = b; b = temp; } a = a  b ; }while(b) ; Here a and b are the input values to program and the final value of a is the LCM Then use this equation: GCD * LCM = a * b to find GCD. 
Euclid's algorithm to find the greatest common divisor of two
positive integers, m and n. See D. Knuth 'The Art of Computer Programming', Volume 1, page 2. (1) Divide m by n and let r be the remainder. (2) If r equals 0 the algorithm terminate; n is the answer. (3) Set m to n, n to r and go back to step (1). #!/bin/bash m=$1 n=$2 while true do r=$(( $m % $n )) # (1) Divide m by n and let r be the remainder. if [ $r eq 0 ] # (2) If r equals 0 the algorithm terminate; n is the answer. then echo $n break fi m=$n # (3) Set m to n, n to r and go back to step (1). n=$r done 
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