Capturing multiple line output into a Bash variable

Question

I\'ve got a script \'myscript\' that outputs the following:

abc
def
ghi

in another script, I call:

declare RESULT=$(./myscr         


        

Answer 1

Another pitfall with this is that command substitution — $() — strips trailing newlines. Probably not always important, but if you really want to preserve exactly what was output, you'll have to use another line and some quoting:

RESULTX="$(./myscript; echo x)"
RESULT="${RESULTX%x}"

This is especially important if you want to handle all possible filenames (to avoid undefined behavior like operating on the wrong file).