Bash: How to add a line on top of text files with sed
Sometimes you might need to add one or more lines of text to the top of an existing text file. Let ‘sed’ rescue you: sed -i ‘1iSTUFF TO ADD’ file.txt You can add multiple lines (separated by \n) to multiple files at once: sed -i ‘1iSTUFF TO ADD\nMORE STUFF’ *.txt