sed command to find and replace text in a file code example
Example 1: sed replace in file
sed -i 's/foo/bar/g' hello.txt
Example 2: replace text with sed
sed -i 's/old-text/new-text/g' input.txt
sed -i 's/foo/bar/g' hello.txt
sed -i 's/old-text/new-text/g' input.txt