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参考

1.lsof

解释第一行的几个值：

• cwd – Current Working Directory
• txt – Text file
• mem – Memory mapped file
• mmap – Memory mapped device
• NUMBER – Represent the actual file descriptor. The character after the number i.e ‘1u’, represents the mode in which the file is opened. r for read, w for write, u for read and write.

TYPE, Some of the values of TYPEs are

• REG – Regular File
• DIR – Directory
• FIFO – First In First Out(先进先出是队列)
• CHR – Character special file

DEVICE：指定磁盘名称

2.lsof 文件名

3.lsof -p 进程pid

4. lsof -u username

5. lsof -i

按条件过滤的

• lsof -i tcp #查看协议tcp的连接
• lsof -i udp #udp协议的连接
• lsof -i4 # ipv4
• lsof -i6 # ipv6
• lsof -i -n # 不把ip转化为hostname
• lsof -i :22 # 查看22号端口被哪个进程占用，监听