/usr/bin/head

Print the first 10 lines of each FILE to standard output.
With more than one FILE, precede each with a header giving the file name.
With no FILE, or when FILE is -, read standard input.

Mandatory arguments to long options are mandatory for short options too.

Usage: head [OPTION]... [FILE]...

Arguments:
  [FILE]...  [default: -]

Options:
  -c, --bytes <[-]NUM>   print the first NUM bytes of each file;
                         with a leading '-', print all but the last
                         NUM bytes of each file
  -n, --lines <[-]NUM>   print the first NUM lines instead of the first 10;
                         with a leading '-', print all but the last
                         NUM lines of each file
  -q, --quiet            never print headers giving file names [alias: --silent]
  -v, --verbose          always print headers giving file names
  -z, --zero-terminated  line delimiter is NUL, not newline
  -h, --help             Print help
  -V, --version          Print version