*Please don't debug the entire program. I haven't gotten to play with it yet and I want to figure it out for myself. I asked a question about a chapter exercize in a book that I am teaching myself perl from, and somebody suggested that I declare my variables using my when I first used them, rather than at the top of my program like I would with c. I tried to take that advice but my program is giving me this error: "@userin" requires explicit package name at ./rulerline.plx line 6." As I am sure you know, this is the error that perl gives when use strict is on and you haven't declared your varriabled. I put a my before the array. What am I doing wrong? 
#!/usr/bin/perl
use warnings ;
use strict ;
print "This program will display what you type in right justified 20 c
+haracter columns.\nEnter text and press ctrl + d when done.\n"
my @userin = <STDIN> ;
printf "%-20s", @userin ;

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In reply to Another newb question by Parmenides

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