云服务器 ECS Liunx 系统执行 ls 命令时提示:
1 2 3 4 5 | <ol class = "linenums" > <li class = "L0" ><span class = "pln" >bash</span><span class = "pun" >:</span><span class = "pln" > ls</span><span class = "pun" >:</span><span class = "pln" > command not found</span></li> </ol> |
现象如图:
ls 查询命令的环境变量有问题,可以通过 whereis 或者 which 命令查看相应指令路径 。
比如,执行 which ls,或者 whereis ls,如图:
如果环境变量中不存在 ls 的命令路径,就会导致该问题。
通过执行命令手工配置默认环境变量:
注意:该操作会覆盖自定义环境变量,请确认没有做过自定义配置,或已经进行配置备份。
1 2 3 4 5 | <ol class = "linenums" > <li class = "L0" ><span class = "kwd" >export</span><span class = "pln" > PATH</span><span class = "pun" >=</span><span class = "str" >/usr/</span><span class = "kwd" >local</span><span class = "pun" >/</span><span class = "pln" >sbin</span><span class = "pun" >:</span><span class = "str" >/usr/</span><span class = "kwd" >local</span><span class = "pun" >/</span><span class = "pln" >bin</span><span class = "pun" >:</span><span class = "str" >/sbin:/</span><span class = "pln" >bin</span><span class = "pun" >:</span><span class = "str" >/usr/</span><span class = "pln" >sbin</span><span class = "pun" >:</span><span class = "str" >/usr/</span><span class = "pln" >bin</span><span class = "pun" >:</span><span class = "str" >/root/</span><span class = "pln" >bin</span></li> </ol> |
再通过 echo $PATH 确认配置无误,就可以正常的使用常规命令了:
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