使用sed命令替换javascript中的变量值

Question

I have one variable in app.js called

process.env.NODE_ENV = 'development';

i tried sed command to replace the value from development to production.

sed -i -e "s/process.env.NODE_ENV = \'development\';/process.env.NODE_ENV = \'production\';/g" app.js

But it didnt work. How to change the value in app.js file.

Answer 1

As you use double quotes, the backslashes get interpreted by your shell. You can see that with set -x . The interpreted command which is called looks like:

sed -i -e 's/process.env.NODE_ENV = \'\''development\'\'';/process.env.NODE_ENV = \'\''production\'\'';/g' app.js

If you remove the backslashes, it works.