I'm still beginner in perl programming. I will appreciate is someone can provide advice or some clue to create perl script below

The file1 is comma separated file(csv).
Read every line from file1
I need to replace string(name) in file2 that matches first column of file1 with second column of file1

###############################################
file 2
------
DN: CN=Itmanagement,OU=Groups,O=uni.com
ChangeType: Modify
Add: uniquemember
uniquemember: uid=anakin,OU=Users,o=uni.com

DN: CN=ComputerScience,OU=Groups,o=uni.com
ChangeType: Modify
Add: uniquemember
uniquemember: uid=obiwan,OU=Users,o=uni.com

DN: CN=accoutning,OU=Groups,o=uni.com
ChangeType: Modify
Add: uniquemember
uniquemember: uid=skywalker,OU=Users,o=uni.com

DN: CN=management,OU=Groups,o=uni.com
ChangeType: Modify
Add: uniquemember
uniquemember: uid=anakin,OU=Users,o=uni.com
###############################################

[download]
file 1
------
anakin,james
obiwan,nicol
skywalker,sarah
darthvader,robert

[download]

In reply to How to replace string in file2 that matches first column of file1 with second column of file1 by anakin30

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.