Linux Interview common problems

1, Shell implementation find the current directory and subdirectories in the name of the file containing king

Find./| grep King

2, tcpdump grasping the package parameter-nne respectively represents what meaning

-nn: Displayed directly with IP and port number, not host name service and name

-e: The Data Link layer header information for the packet will be included in the printout of each row

3. A large file find the line where the keyword is located and print this line

Sed-n '/key/p ' file

4. Replace

Sed-n ' s/test1/test2/g ' file

Linux Interview common problems