How to install packages in a multilined fashion?

I have the problem that I have a long liner command and it's too long for me in one line. The command is basically installing packages:

Code:apt install pack_1 pack_2 pack_3 pack_4 pack_5 ...I have tried to do this:

Code:apt install \
pack_1 \
pack_2 \
pack_3 \
pack_4 \
pack_5 \
...Quote:

E: Unsupported file / given on commandline

How to install packages in a multilined fashion?