Replace with sed command
If you want to replace a string using the sed command, you can replace it with the "- e" and "- i" options. It is convenient to take backup. You can convert multiple files simultaneously. The following example is an example of replacing the string Linux in source.txt and source.txt 2 with Linux.
sed -i".org" -e "s/Linux/リナックス/g" path/source.txt path/source2.txt