C language print mode matching row exercises

# Include <stdio. h> # include <string. h> /************************************* the C programing language (second edition) "Small exercise *******************************/int getline (char *, int);/* find function: print all rows that match the pattern of the first specified parameter */int main (int argc, char * argv []) {char line [1000]; int found = 0; printf ("input a line:"); if (argc! = 2) printf ("error message: find partten! \ N "); else while (getline (line, 1000)> 0) if (strstr (line, argv [1])! = NULL) {printf ("% s", line); found ++;} return found;}/* getline function: get the row */int getline (char * line, int MAXLINE) {char c; int I; for (I = 0; I <MAXLINE-1 & (c = getchar ())! = EOF & c! = '\ N'; ++ I) line [I] = c; if (c =' \ n') {line [I] = c; ++ I ;} line [I] = '\ 0'; return I ;}