How to format the output of ls?

Question

I would like to output all headers in a directory. There is one entry per line and each line should begin with four whitespaces and should end with a whitespace and a '\' character.

____header1.h_\
____header2.h_\
____header3.h_\

I already figured out how to make the output one entry per line.

ls -1 *.h

But I do not know how to do the formatting. Where should I look to learn more complicated formatting?

EDIT:

All the scripts in all the answers produce the desired output. I wish I could accept all answers.

Answer 1

You can use printf and shell globbing rather than attempt to format ls output.

Try something like:

$ printf '    %s \\\n' *.h
    a.h \
    b.h \
    c.h \

ls is really meant as an "interactive" tool for humans, avoid using it for anything else.

Answer 2

ls -1 *.h | sed 's/^/    /' | sed 's/$/ \\/'

Alternatively, you could say:

ls -1 *.h | sed 's/.*/    & \\/'