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?
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>