Following is *nix a command that you can use to add the contents of a source text file to the start of another text file (the source file).
echo -e '0r <source_file_name>\nw' | ed -s <target_file_name>
Principal Software Engineer/Architect, motorcyclist, drummer, and artist
Following is *nix a command that you can use to add the contents of a source text file to the start of another text file (the source file).
echo -e '0r <source_file_name>\nw' | ed -s <target_file_name>