sed删除每个以.jsx扩展名结尾的文件的第一行

Question

So in React 0.12 having /** @jsx React.DOM */ at the top of all jsx files is no longer necessary. A library that I'm using actually throws an error when it sees the /** @jsx React.DOM */ line that exists at the top of every jsx file.

So I wanted to know if there was a quick way using sed to remove this line from every file within a directory.

Should I just remove line 1, or is there a way for me to pattern match, and verify that it's at the top? Also how would one recursively remove it from all files within a directory, and it's subdirectories?

Thank you!

Answer 1

Yes, it's simple with the help of find . The following command lines the first line of all *.jsx files:

find /path/to/files -name '*.jsx' -exec sed -i '1d' {} \;

This command removes lines containing that certain comment:

find /path/to/files -name '*.jsx' -exec sed -i '/^\/\*\* @jsx React\.DOM \*\/$/d' {} \;

Make a backup of your files before issuing that commands since they modify the files in place. Better safe than sorry.