[疑问] CentOS 安装ruby环境后安装bundler打开.SH提示bundle: command not found

CentOS 7 安装ruby-2.1.10环境正常

gem 版本 2.0.14.1
[root@web ruby-2.1.10]# gem -v
2.0.14.1

安装bundler -v 1.17.3
[[email protected] ruby-2.1.10]# gem install bundler -v 1.17.3  
Successfully installed bundler-1.17.3
Parsing documentation for bundler-1.17.3
1 gem installed

最后执行.sh命令 出现这个错误 找不到命令 是bundler的问题吗？
[root web]# sh 1.sh
1.sh: line 1: bundle: command not found
1.sh: line 2: rake: command not found
1.sh: line 3: rake: command not found
1.sh: line 4: thin: command not found
1.sh: line 5: thin: command not found

1.sh文件：
bundle install
rake db:create RAILS_ENV=alpha
rake db:migrate RAILS_ENV=alpha
thin stop -p 7200 -d -e alpha
thin start -p 7200 -d -e alpha

好久没用CentOS了，试了下其他的命令也是提示XXX: command not found
各位大佬，请问这该如何解决？

bundle install
rake db:create RAILS_ENV=alpha
rake db:migrate RAILS_ENV=alpha
thin stop -p 7200 -d -e alpha
thin start -p 7200 -d -e alpha