Sed ！

给定template.txt：

Given template.txt:

The number is ${i}
The word is ${word}

我们只需要说：

sed -e "s/\${i}/1/" -e "s/\${word}/dog/" template.txt

感谢Jonathan Leffler提示将多个 -e 参数传递给相同的 sed 调用。

Thanks to Jonathan Leffler for the tip to pass multiple -e arguments to the same sed invocation.