Input file:
88,100,2287432,1,0,400,2287432,52,12, ^M
16,275,2287432,0,0041880118XF,,/ ^M
88,REMARK : STANDING INSTR FROM: 323-126065 ADT FLOAT XFER CREDIT ^M
16,469,207805,0,2348128762TC,,/ ^M
________________________________________________________________


I'm trying to get rid of space before ^M.where ^M is a special charact
+er (its one byte i.e ^M is one character)I'm using following code but
+ its not working.Any Suggestion please... Thanks.
_______________________________________________________________
#!/usr/bin/perl
open (diff, "<dave.00063");                                           
+     
open (out, ">SAPPDAY.00063.new");                                     
+     
$count=0;                                                             
+     
while (<diff>) {                                                      
+     
   if (/(^16|^88)/) {                                                 
+     
     chomp $_ ;                                                       
+    
     @words=split(/,/, $_)  ;                                         
+    
     $field_cnt=$#words ;                                             
+    
     #print "  Field count = $field_cnt\n" ;                          
+     
     $last_length=length($words[$field_cnt]) ;                        
+    
     #print "  Field length= $last_length\n" ;                        
+    
     $num1 =$last_length-1;                                           
+    
     $num2 =$num- 1;                                                  
+    
     #print " NUM 1 = [$num1]\n" ;                                    
+   
      if ( substr($words[$field_cnt], $num1, 1) eq " " ) {            
+     
       $part1 = substr($words[$field_cnt], 0, $num2 ) ;               
+     
       $part2 = substr($words[$field_cnt], $last_length, 1 ) ;        
+    
       $words[$field_cnt] = $part1 . $part2 ;                         
+    
       print "$words[field_cnt]\n"                                    
+    
      }                                                               
+     
      exit;                                                           
+     
   }                                                                  
+       
}

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In reply to substring function by Anonymous Monk

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