tree command on osx bash

Question

I'm following a screen cast on a ruby gem called pry. At 8:10, the .tree command is used, which I believe is a Unix command.

It does not appear to be working on my system:

[24] pry(main)> .tree \Error: there was a problem executing system command: tree 

and I have traced the issue to here, in which pry references a shell command:

Pry::CommandSet.new do    command(/\.(.*)/, "All text following a '.' is forwarded to the shell.", :listing => ".<shell command>") do |cmd|     if cmd =~ /^cd\s+(.+)/i       dest = $1       begin         Dir.chdir File.expand_path(dest)       rescue Errno::ENOENT         output.puts "No such directory: #{dest}"       end      else       if !system(cmd)         output.puts "Error: there was a problem executing system command: #{cmd}"       end     end   end 

from the context of bash I tried using the command tree with no luck:

projects/sms(apps2)$ tree -bash: tree: command not found ~/projects/sms(apps2)$ .tree -bash: .tree: command not found 

This looks incredibly useful, how can I get this command?

Answer 1

Using homebrew:

brew install tree

Using macports:

sudo port install tree

Using the source:

Follow these directions. (Caveat; you should use the flags/etc. that make sense.)

^{<rant>All systems should come with tree; I use it a lot. And we can post directory structures as text, not pics.</rant>}

Answer 2

For a simple approach you can also add the following alias to your ~/.bashrc or ~/.zshrc file:

alias tree="find . -print | sed -e 's;[^/]*/;|____;g;s;____|; |;g'" 

This results in the following:

$ tree . |____.git | |____config | |____objects | | |____pack | | |____info | |____HEAD | |____info | | |____exclude | |____description | |____hooks | | |____commit-msg.sample | | |____pre-rebase.sample | | |____pre-commit.sample | | |____applypatch-msg.sample | | |____pre-receive.sample | | |____prepare-commit-msg.sample | | |____post-update.sample | | |____pre-applypatch.sample | | |____pre-push.sample | | |____update.sample | |____refs | | |____heads | | |____tags 

Found this solution here:

• http://osxdaily.com/2016/09/09/view-folder-tree-terminal-mac-os-tree-equivalent/