我尝试按照此答案方向安装 n 以进行节点版本更新。它成功地将我升级到节点 v7，但有一个副作用。现在已找到节点：
/usr/local/bin/node
如果我输入，node -v我会收到 bash 错误，因为它在错误的位置查找（它在 中查找usr/bin/node）。我最好的前进道路是什么？如何更改终端查找节点的路径，以便我可以运行node index.js，同时不干扰我将来使用 n 升级节点的愿望。
我不确定这是否相关，但是，当我在一个项目中并且我输入的nodemon index.js一切都按预期工作。我认为这是因为nodemon安装在安装node v7的地方。
这是 的值echo $PATH：
/usr/local/heroku/bin:/home/devin/.rbenv/shims:/home/devin/.rbenv/bin:/usr/bin:/home/devin/bin:/home/devin/.local/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin
这是 的值which node：
/usr/local/bin/node
的值locate node使终端过载并结束如下：
/var/lib/gems/2.3.0/gems/arel-7.1.2/lib/arel/nodes/node.rb
/var/lib/gems/2.3.0/gems/arel-7.1.2/lib/arel/nodes/outer_join.rb
/var/lib/gems/2.3.0/gems/arel-7.1.2/lib/arel/nodes/over.rb
/var/lib/gems/2.3.0/gems/arel-7.1.2/lib/arel/nodes/regexp.rb
/var/lib/gems/2.3.0/gems/arel-7.1.2/lib/arel/nodes/right_outer_join.rb
/var/lib/gems/2.3.0/gems/arel-7.1.2/lib/arel/nodes/select_core.rb
/var/lib/gems/2.3.0/gems/arel-7.1.2/lib/arel/nodes/select_statement.rb
/var/lib/gems/2.3.0/gems/arel-7.1.2/lib/arel/nodes/sql_literal.rb
/var/lib/gems/2.3.0/gems/arel-7.1.2/lib/arel/nodes/string_join.rb
/var/lib/gems/2.3.0/gems/arel-7.1.2/lib/arel/nodes/table_alias.rb
/var/lib/gems/2.3.0/gems/arel-7.1.2/lib/arel/nodes/terminal.rb
/var/lib/gems/2.3.0/gems/arel-7.1.2/lib/arel/nodes/true.rb
/var/lib/gems/2.3.0/gems/arel-7.1.2/lib/arel/nodes/unary.rb
/var/lib/gems/2.3.0/gems/arel-7.1.2/lib/arel/nodes/unary_operation.rb
/var/lib/gems/2.3.0/gems/arel-7.1.2/lib/arel/nodes/unqualified_column.rb
/var/lib/gems/2.3.0/gems/arel-7.1.2/lib/arel/nodes/update_statement.rb
/var/lib/gems/2.3.0/gems/arel-7.1.2/lib/arel/nodes/values.rb
/var/lib/gems/2.3.0/gems/arel-7.1.2/lib/arel/nodes/window.rb
/var/lib/gems/2.3.0/gems/arel-7.1.2/lib/arel/nodes/with.rb
/var/lib/gems/2.3.0/gems/execjs-2.7.0/lib/execjs/support/node_runner.js
/var/lib/gems/2.3.0/gems/nokogiri-1.6.8/ext/nokogiri/xml_node.c
/var/lib/gems/2.3.0/gems/nokogiri-1.6.8/ext/nokogiri/xml_node.h
/var/lib/gems/2.3.0/gems/nokogiri-1.6.8/ext/nokogiri/xml_node.o
/var/lib/gems/2.3.0/gems/nokogiri-1.6.8/ext/nokogiri/xml_node_set.c
/var/lib/gems/2.3.0/gems/nokogiri-1.6.8/ext/nokogiri/xml_node_set.h
/var/lib/gems/2.3.0/gems/nokogiri-1.6.8/ext/nokogiri/xml_node_set.o
/var/lib/gems/2.3.0/gems/nokogiri-1.6.8/lib/nokogiri/css/node.rb
/var/lib/gems/2.3.0/gems/nokogiri-1.6.8/lib/nokogiri/xml/node
/var/lib/gems/2.3.0/gems/nokogiri-1.6.8/lib/nokogiri/xml/node.rb
/var/lib/gems/2.3.0/gems/nokogiri-1.6.8/lib/nokogiri/xml/node_set.rb
/var/lib/gems/2.3.0/gems/nokogiri-1.6.8/lib/nokogiri/xml/node/save_options.rb
/var/lib/gems/2.3.0/gems/nokogiri-1.6.8/lib/nokogiri/xml/pp/node.rb
/var/lib/gems/2.3.0/gems/nokogiri-1.6.8/test/html/test_node.rb
/var/lib/gems/2.3.0/gems/nokogiri-1.6.8/test/html/test_node_encoding.rb
/var/lib/gems/2.3.0/gems/nokogiri-1.6.8/test/xml/node
/var/lib/gems/2.3.0/gems/nokogiri-1.6.8/test/xml/test_node.rb
/var/lib/gems/2.3.0/gems/nokogiri-1.6.8/test/xml/test_node_attributes.rb
/var/lib/gems/2.3.0/gems/nokogiri-1.6.8/test/xml/test_node_encoding.rb …