> For the complete documentation index, see [llms.txt](https://linux-tutorial-cli.gitbook.io/linux-cli-tutorial/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://linux-tutorial-cli.gitbook.io/linux-cli-tutorial/txt-files/help.md).

# help

## help

Usage: head \[OPTION]... \[FILE]... 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. -c, --bytes=\[-]NUM print the first NUM bytes of each file; with the 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 the leading '-', print all but the last NUM lines of each file -q, --quiet, --silent never print headers giving file names -v, --verbose always print headers giving file names -z, --zero-terminated line delimiter is NUL, not newline --help display this help and exit --version output version information and exit

NUM may have a multiplier suffix: b 512, kB 1000, K 1024, MB 1000*1000, M 1024*1024, GB 1000*1000*1000, G 1024*1024*1024, and so on for T, P, E, Z, Y. Binary prefixes can be used, too: KiB=K, MiB=M, and so on.

## man

NAME head - output the first part of files

SYNOPSIS head \[OPTION]... \[FILE]...

DESCRIPTION Print the first 10 lines of each FILE to standard output. With more than one FILE, pre‐ cede 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.

   -c, --bytes=[-]NUM
          print the first NUM bytes of each file; with the 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 the leading '-', print all
          but the last NUM lines of each file

   -q, --quiet, --silent
          never print headers giving file names

   -v, --verbose
          always print headers giving file names

   -z, --zero-terminated
          line delimiter is NUL, not newline

   --help display this help and exit

   --version
          output version information and exit

   NUM may have a multiplier suffix: b 512, kB 1000, K 1024, MB 1000*1000,  M  1024*1024,  GB
   1000*1000*1000,  G  1024*1024*1024,  and  so on for T, P, E, Z, Y.  Binary prefixes can be
   used, too: KiB=K, MiB=M, and so on.
```