lsof-列出打开的文件列表打开的文件-i：选择任何Internet地址与i中指定的地址匹配的文件列表。如果未指定地址，则此选项选择所有Internet和x.25(HP-UX)网络文件的列表3000端口被占用：{code:'EADDRINUSE',errno:'EADDRINUSE',syscall:'listen',address:'::',port:3000}解决方案：softwaredeMacBook-Pro:servsoftware$lsof-i:3000COMMANDPIDUSERFDTYPEDEVICESIZE/OFFNODENAMEnode23353software32uIPv60x5acd86b90827ce570t0TCP*:hbci(LISTEN)节点23353软件43uIPv60x5acd86b90827bd170t0TCPlocalhost:hbci->localhost:56421(CLOSE_WAIT)softwaredeMacBook-Pro:servsoftware$kill23353softwaredeMacBook-Pro:servsoftware$lsof-i:3000
