Hi i am a beginner programmer and i was foolin around with
this program:
#!/usr/bin/perl
 
   
print "What file do you want to \"detabify?\" ";
$file=<>;
chomp $file;
$/=undef;                              
open FILE, "<$file";  
$text=<FILE>;                      
close FILE;
$text=~s/\t/   /g;                    
open FILE, ">$file";
print $text;                           
close FILE;

[download]
and i was woundering how you would goet it to read from a
text file and change all the letter J's to P's.
i tryed using this: $text=~s/j/p/;
but it would only change the first letter J...
Could someone please help me with this....

In reply to Substitution Operator by Anonymous Monk

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
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