New applet, seq. No options, just the basics.

coreutils/seq.c

@@ -0,0 +1,44 @@
+/*
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of version 2 of the GNU General Public License as
+ *  published by the Free Software Foundation.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU Library General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include "busybox.h"
+
+extern int seq_main(int argc, char **argv)
+{
+	double last;
+	double first = 1;
+	double increment = 1;
+	double i;
+
+	if (argc == 4) {
+		first = atof(argv[1]);
+		increment = atof(argv[2]);
+	}
+	else if (argc == 3) {
+		first = atof(argv[1]);
+	}
+	else if (argc != 2) {
+		bb_show_usage();
+	}
+	last = atof(argv[argc - 1]);
+
+	for (i = first; ((first < last) ? (i <= last): (i >= last));i += increment) {
+		printf("%g\n", i);
+	}
+
+	return(EXIT_SUCCESS);
+}