How to add new line using sed on MacOS?

Powered by mac in two Interpretation:

echo foo | sed 's/f/f\'$'\n/'
echo foo | gsed 's/f/f\n/g'

Some seds, notably Mac / BSD, don't interpret \n as a newline, you need to use an actual newline, preceded by a backslash:

$ echo foo | sed 's/f/f\n/'
fnoo
$ echo foo | sed 's/f/f\
> /'
f
oo
$

Or you can use:

echo foo | sed $'s/f/f\\\n/'

Tags:

Sed

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