Linux command-head

Head:output the first part of the files: output file header

Head options:

-C,--bytes=[-]k:print the first k bytes of each file; With the leading '-', print all, and the last K bytes of every file: K characters before printing a file, must have a K value,-K means that the file is printed to the bottom of the K-character position, and the K-character is printed.

-N,--lines=[-]k:print the first K lines instead of the first 10; With the leading '-', print all and the last K lines for each file: No k is also OK, default printing 10 lines,-K usage is the same as-K in-C.

Linux command-head