Command Line Calculator
# include < stdio.h > # include < string.h > # include < stdlib.h > int main ( int argc , char * argv [] ) { int num1 , num2 ; char * operation ; operation = argv [ 1 ]; num1 = atoi ( argv [ 2 ]); num2 = atoi ( argv [ 3 ]); if ( strcmp ( operation , " add " ) == 0 ) { printf ( " %d \n " , num1 + num2 ); } if ( strcmp ( operation , " subtract " ) == 0 ) { printf ( " %d \n " , num1 - num2 ); } if ( strcmp ( operation , " multiply " ) == 0 ) { printf ( " %d \n " , num1 * num2 ); } if ( strcmp ( operation , " divide " ) == 0 ) { printf ( " %d \n " , num1 / num2 ); } ...