print ":1234567890:\n";
 printf ":%7s:\n", "abcdefghij";     # min width, string is longer
 printf ":%7s:\n", "abc";            # min width, string is shorter right align
 printf ":%-7s:\n", "abc";           # min width, string is shorter left align
 print "---\n";
 printf ":%.7s:\n", "abc";           # max width, string is shorter
 printf ":%.7s:\n", "abcdefghij";    # max width, string is longer
 print "---\n";
 printf ":%7.7s:\n", "abcdefghij";   # min.max and they are the same
 printf ":%7.7s:\n", "abc";          # min.max and they are the same
 print "---\n";
 printf ":%3d:\n", 3;                # min width
 printf ":%0.3d:\n", 3;              # min width with 0 padding