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Asked: 2026-06-15T04:33:28+00:00

For example, I have a huge HTML file that contains img URL: http://ex.example.com/hIh39j+ud9wr4/Uusfh.jpeg I

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For example, I have a huge HTML file that contains img URL: http://ex.example.com/hIh39j+ud9wr4/Uusfh.jpeg

I want to get this URL, assuming it’s the only url in the entire file.

cat file.html | grep -o 'http://ex[a-zA-Z.-]*/[a-zA-Z.-]*/[a-zA-Z.,-]*'

This works only if the URL doesn’t have the plus signs.

How do I make work for + signs as well?

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1 Answer

  1. Editorial Team

    You missed the character class 0-9 (also useless use of cat):

    grep -o 'http://ex[a-zA-Z.-]*/[a-zA-Z0-9+-]*/[a-zA-Z0-9.,-+]*' file.html

    Slight improvement, use -i for case insensitivity and only match images .jpg or .jpeg.

    grep -io 'http://ex[a-z.-]*/[a-z0-9+-]*/[a-z0-9.,-+]*[.jpe?g]' file.html

    Or how about just: 

    grep -io 'http://ex.example.*[.jpe?g]' file.html
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