head: Output the first part of files

head prints the first part (10 lines by default) of each file; it reads from standard input if no files are given or when given a file of `-'. Synopses:

head [option]... [file]...
head -number [option]... [file]...

If more than one file is specified, head prints a one-line header consisting of

==> file name <==

before the output for each file.

head accepts two option formats: the new one, in which numbers are arguments to the options (`-q -n 1'), and the old one, in which the number precedes any option letters (`-1q').

The program accepts the following options. Also see section Common options.

`-countoptions'

This option is only recognized if it is specified first. count is a decimal number optionally followed by a size letter (`b', `k', `m') as in -c, or `l' to mean count by lines, or other option letters (`cqv').

`-c bytes'

`--bytes=bytes'

Print the first bytes bytes, instead of initial lines. Appending `b' multiplies bytes by 512, `k' by 1024, and `m' by 1048576.

`-n n'

`--lines=n'

Output the first n lines.

`-q'

`--quiet'

`--silent'

Never print file name headers.

`-v'

`--verbose'

Always print file name headers.

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