在EC2上运行的Ubuntu 13.04上,通过sudo的所有命令都可以正常工作,除了ls.以下是一些示例命令来说明问题:
ubuntu at host in ~ $sudo ls sudo: command: command not found ubuntu at host in ~ 1 $sudo which ls /bin/ls ubuntu at host in ~ $sudo /bin/ls bin dotfiles init npm tmp ubuntu at host in ~ $sudo pwd /home/ubuntu ubuntu at host in ~ $sudo which pwd /bin/pwd ubuntu at host in ~ $echo wtf wtf