#include #include #define LOG_FILE "/blugreen/homes/plank/cs360/notes/Logfile/fill_log_file" write_to_fill_log() { char *username; long t; FILE *f; username = getenv("USER"); t = time(0); f = fopen(LOG_FILE, "a"); if (f == NULL) { fprintf(stderr, "Can't write log file %s\n", LOG_FILE); return; } fprintf(f, "%s %ld\n", username, t); fclose(f); } main() { write_to_fill_log(); }