Hello, I just want to substitute the space to 0. Spaces were separated by tab. Thanks in advance! For example 


1    2            2        5                4
4    4    4            4                3    
        4    4            1                
    1    5    6        4                    


change to 

1    2    0    0    2    0    5    0    0    0    4
4    4    4    0    0    4    0    0    0    3    0
0    0    4    4    0    0    1    0    0    0    0
0    1    5    6    0    4    0    0    0    0    0

[download]

#use strict
#use warning

open(IN1, "tmp01") || die "Cannot open this file";

@lines = <IN1>;

$i = 0;

for (@lines)

{

$lines[$i]=~s/\s\s+/\t0\t/g;

$thislines[$i]=$lines[$i];
print $thislines[$i];

$i++;

}

open(OUT, ">tmp02") || die "Cannot open this file";

for $thisline(@thislines){

print OUT $thisline;}

close(OUT);
close(IN1);

[download]

In reply to substitute space to 0 by yueli711

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.