List all folders as tree

listdirs.md

List all folders as tree (found at https://stackoverflow.com/a/3455651/9418252)

.
|-apache2
|---mod_cache_disk
|-apparmor
|-apt
|---archives
|-----partial
|-apt-xapian-index
|---index.1
|-dbconfig-common
|---backups
|-debconf

ls -R | grep ":$" | sed -e 's/:$//' -e 's/[^-][^\/]*\//--/g' -e 's/^/ /' -e 's/-/|/'

Tree with files

find . | sed -e "s/[^-][^\/]*\// |/g" -e "s/|\([^ ]\)/|-\1/"