Unable to put data to the first line in terminal without an editor?

Question

Duplicate of prepend to a file one liner shell? .

I trying to put my paste to the very first line without opening an editor similarly as but for the reverse direction

echo Masi >> file

How can you put data to the first line in terminal without opening an editor?

For instance,

I have a file

M
M
M

I want to put Masi to my file such that

Masi
M
M
M

without opening an editor in terminal.

Answer 1

You could try:

mv file temp_file
echo "Masi" > file
cat temp_file >> file
rm temp_file

Write a script if you have to do it a lot...

---

Or I believe you could do it with ed. You'll have to decide for yourself if you think that counts as "opening an editor"...

Answer 2

Doing it with ed:

#!/bin/sh
/bin/ed $1 <<__EOT__
1i
Masi
.
wq
__EOT__

Technically, this is firing up an editor, but it's non-interactive, so may meet your criteria.