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Asked: 2026-05-11T09:35:00+00:00

I m looking for a way to find and replace large number of text

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I m looking for a way to find and replace large number of text files. For example;

I want to choose;

<li><a href=''>Istanbul, TR POS </a></li> <li><a href=''>Ankara, TR POS </a></li> <li><a href=''>Izmir, TR POS </a></li>

WITH;

<li><a href='pos-istanbul-tr.php'>Istanbul, TR POS </a></li> <li><a href='pos-ankara-tr.php'>Ankara, TR POS </a></li> <li><a href='pos-izmir-tr.php'>Izmir, TR POS </a></li>

Notice that initial of the label is lowercased and also added as part of the link. This should be done for a large number of text files so i m looking for the most efficient way via regex or any software that you think that might help.

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1 Answer

  1. $ perl -i.bak \ >  -pe's/href=''>([^,]+)/\'href='pos-\'. (lc $1) . \'-tr.php'>\'. $1/eg' \ >  *.html

    Cross-platform variant (+ building on @Jonathan Leffler’s answer)

    Save it to fill-href.pl:

    #!/usr/bin/perl -w -pi.bak s/href=''>([^,]+)/href='pos-\L$1\E-tr.php'>$1/g

    Run:

    perl fill-href.pl test1.html test2.html
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