Warning: comparison with string literals results in unspecified behaviour

Question

I am starting a project of writing a simplified shell for linux in C. I am not at all proficient with C nor with Linux that\'s exactly the reason I decided it would be a goo

Answer 1

You want to use strcmp() == 0 to compare strings instead of a simple ==, which will just compare if the pointers are the same (which they won't be in this case).

args[i] is a pointer to a string (a pointer to an array of chars null terminated), as is "&" or "<".

The expression argc[i] == "&" checks if the two pointers are the same (point to the same memory location).

The expression strcmp( argc[i], "&") == 0 will check if the contents of the two strings are the same.