tree is a command line tool that produces a depth indented listing of files.
$ tree --help
Usage of ./tree:
-a List all files
-depth int
Max depth
-o string
Output file, default to console
-p string
Working path, default is current path (default ".")$ tree
[.]
├─ LICENSE
├─ README.md
├─ cmd/
│ ├─ cmd.go
│ └─ node.go
├─ dir/
│ └─ visit.go
├─ go.mod
├─ go.sum
└─ main.go