Question

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Find and Replace Inside a Text File from a Bash Command

I’ve been told to change all the title tags in a website.

Because the title tag it’s in all the pages of the website (more than 30) and it’s static, I need to go file by file in order to replace this title with the new one.

So I was wondering if someone knows a script that can achieve this without having to do it manually in a one by one basis.

Example:

/var/www/websitename/

Inside this path, there is multiple .html files which I have to change the title from:

 <title>Old title</title>

To:

 <title>New title</title>

Answer 1

Try this one (after a backup of the folder, because here sed works in-place).

find /var/www/websitename/ -name '*.html' -exec sed -i.bak 's/.title.Old title..title./<title>New title<\/title>/g' {} \;