Dec 1 -- The cat on the tip of the iceberg

Article:  https://ibr.cs.tu-bs.de/advent/01-open/
Workload: ~46 source-code lines

01-open/Makefile

+cat: cat.c
+	gcc cat.c -o cat
+
+run: ./cat
+	./cat cat.c Makefile
+
+strace: ./cat
+	strace ./cat cat.c Makefile > /dev/null

01-open/cat.c

+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <errno.h>
+#include <unistd.h>
+
+
+int main(int argc, char *argv[]) {
+    // For cat, we have to iterate over all command-line arguments of
+    // our process, where argv[0] is our program binary itself ("./cat").
+    for (int idx = 1; idx < argc; idx++) {
+        printf("argv[%d] = %s\n", idx, argv[idx]);
+    }
+
+    return 0;
+}