在编写puppet模块中，常常需要用的exec resource，而在每个exec block里都需要添加一个path就太让人boring了，而且某些命令不一定是在/usr/bin，也可能是在/sbin，也可能是在其他目录。

解决办法就是设置一个全局的PATH路径：

# put this somewhere global, like site.ppExec { path => [ "/bin/", "/sbin/" , "/usr/bin/", "/usr/sbin/" ] }# uses the globally specified pathexec { "make_foo_state":    command => "mkdir -p /tmp/foo/state",}# overrides the global path for this commandexec { "my_local_command":    command => "my_special_local_command",    path    => "/usr/local/sbin/",}