Hello i want code where it will print out the following error messages when the

Question

Hello i want code where it will print out the following error messages when the specfic argument case is passed through the code.

for N, the integer is in the first argument

ex.   1 all emptyfile

this would be one of the command line arguments being passed

You must detect the case where no arguments are passed. In that case, print the error message “NO

PHRASE LENGTH” and stop.

You must detect the case where the argument specified for N is not an integer. In that case, print the

error message “INVALID PHRASE LENGTH” and stop, also if the integer is negative

Print “NO MODE” if a second argument is missing

Print “INVALID MODE” if the second argument is something other than “all” or “top”

Explanation / Answer

#include <stdio.h>
#include<string.h>
#include<stdlib.h>

int main( int argc, char *argv[] ) {

int num,len,i;

if( argc > 1 ) {
len = strlen(argv[1]);

for(i=0;i<len;i++)
{
if(isdigit(argv[1][i]) == 0){
printf("INVALID PHRASE LENGTH ");
return 1;
}
}
num = atoi(argv[1]);
if(num < 0){
printf("INVALID PHRASE LENGTH ");
return 1;
}
}
if(argc == 1 ) {
printf("NO PHRASE LENGTH ");
return 1;
}
  
if(argc == 3 ){
if( strcmp(argv[2],"all")!=0 && strcmp(argv[2],"top")!=0 )
{
printf("INVALID MODE ");
return 1;
}
}else{
printf("NO MODE ");
}

return 0;

}

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