Command:   head - print the first few lines of a file
Syntax:    head [-n] [file] ...
Flags:     -n  How many lines to print
Examples:  head -6                  # Print first 6 lines of stdin
           head -1 file1 file2      # Print first line of two files

     The first few lines of one or more files are printed.  The  default
count is 10 lines.  The default file is stdin.