+ # fix files with no newline at the end.
+ # the following command won't work right on them otherwise.
+ # e = run script, $a\ means append following text, but there is none,
+ # so sed only does what it always does when it was supposed to modify a file,
+ # which is append a newline if there was none.
+ sed -ie '$a\' "$file"
+ # command substitution removes any trailing newlines, so we have to add
+ # a non-newline ending, we randomly chose "b", then remove it.
+ local content=$(cat "$file"; echo b) content=${content%b}