How to replace spaces with linebreaks?

[homocomputeris]

Which syntax should I use to go from

First word. Another word.

to

First word.
Another word.

sd -s ". " '.\\n' text.txt produces

First word.\n Another word.

with the space intact and no linebreak, just \n.

[learnbyexample]

Seems like using -s option makes the replacement string to be literal string as well. You can either use a literal newline or use shell constructs like $'' quoting in bash shell (see https://mywiki.wooledge.org/Quotes for details)

# without -s option
$ echo 'First word. Another word.' | sd '\. ' '.\n'
First word.
Another word.

# with -s option and bash $'' quoting
$ echo 'First word. Another word.' | sd -s '. ' $'.\n'
First word.
Another word.

# -s option and literal newline (press Enter key after .)
$ echo 'First word. Another word.' | sd -s '. ' '.
'
First word.
Another word.

[MuhammadSawalhy]

I think the issue has to be closed, it is something related to bash and the understanding of -s option

[CosmicHorrorDev]

I've tweaked the documentation on --string-mode to hopefully make it more clear that both the FIND and REPLACE args are treated as literal strings