Added touch

src/touch.c

@@ -0,0 +1,23 @@
+#include <fcntl.h>
+#include <stdio.h>
+#include <sys/stat.h>
+
+int
+main(int argc, char *argv[])
+{
+  if(argc <=1)
+    {
+      fprintf(stderr,"Give a file\n");
+      return 1;
+    }
+
+  int fd = open(argv[1],O_RDWR|O_CREAT);
+
+  if(fd == -1)
+    {
+      fprintf(stderr,"Error creating file\n");
+      return 1;
+    }
+  chmod(argv[1],420); /* 644 in decimal */
+  return 0;
+}