Linux basic command-head

Head

Displays the first few lines of the file, with 10 lines by default. You can use the option-n to specify the number of lines. The scope of this command: RedHat, RHEL, Ubuntu, CentOS, SUSE, openSUSE, Fedora.

1. Grammar

Head [options] files

2. List of options

Option

Description

-- version

Display command version information

-- help

Show help documentation

-c |-- bytes= [-] K

Displays the first n bytes of the file;-n displays everything, but does not include the last n bytes

-n |-- lines= [-] K

Displays the first k line;-k shows all lines, but does not include the last k line

-Q |-- quite |-- silent

Do not display file name

-v |-- verbose

Show file name

3. Examples

1) display the first 10 bytes

[root@localhost weijie] # cat 5.c / / View all content

1,2c1,2

12345

> 2334

[root@localhost weijie] # head-c 10 5.c / / display the first 10 bytes

1,2c1,2