Data commit

Task/Take-notes-on-the-command-line/C/take-notes-on-the-command-line.c

@@ -0,0 +1,31 @@
+#include <stdio.h>
+#include <time.h>
+
+#define note_file "NOTES.TXT"
+
+int main(int argc, char**argv)
+{
+	FILE *note = 0;
+	time_t tm;
+	int i;
+	char *p;
+
+	if (argc < 2) {
+		if ((note = fopen(note_file, "r")))
+			while ((i = fgetc(note)) != EOF)
+				putchar(i);
+
+	} else if ((note = fopen(note_file, "a"))) {
+		tm = time(0);
+		p = ctime(&tm);
+
+		/* skip the newline */
+		while (*p) fputc(*p != '\n'?*p:'\t', note), p++;
+
+		for (i = 1; i < argc; i++)
+			fprintf(note, "%s%c", argv[i], 1 + i - argc ? ' ' : '\n');
+	}
+
+	if (note) fclose(note);
+	return 0;
+}