UNIX Publication

- Debian: http://unix.pub/docs/debian/
- APT用法: http://unix.pub/docs/debian/apt_usage/
- dpkg用法: http://unix.pub/docs/debian/dpkg_usage/
- Debian发行版: http://unix.pub/docs/debian/DebianReleases/
- Debian基本命令备忘录: http://unix.pub/docs/debian/Debian-Basic-Command-Memo/
- Debian软件包: http://unix.pub/docs/debian/debian_packages/
- Distribution: http://unix.pub/docs/distributions/
- Waydog Linux: http://unix.pub/docs/distributions/Waydog/
- Lilidog Linux: http://unix.pub/docs/distributions/Lilidog/
- GNU核心工具: http://unix.pub/docs/coreutils/
- base32命令用法: http://unix.pub/docs/coreutils/base32_usage/
- base64命令用法: http://unix.pub/docs/coreutils/base64_usage/
- basenc命令用法: http://unix.pub/docs/coreutils/basenc_usage/
- cat命令用法: http://unix.pub/docs/coreutils/cat_usage/
- fmt命令用法: http://unix.pub/docs/coreutils/fmt_usage/
- fold命令用法: http://unix.pub/docs/coreutils/fold_usage/
- head命令用法: http://unix.pub/docs/coreutils/head_usage/
- nl命令用法: http://unix.pub/docs/coreutils/nl_usage/
- od命令用法: http://unix.pub/docs/coreutils/od_usage/
- pr命令用法: http://unix.pub/docs/coreutils/pr_usage/
- tac命令用法: http://unix.pub/docs/coreutils/tac_usage/
- Linux文档: http://unix.pub/docs/LinuxDoc/
- DAE用法: http://unix.pub/docs/LinuxDoc/dae_usage/
- Linux透明代理: http://unix.pub/docs/LinuxDoc/Linux_Transparent_proxy/
- OpenWrt: http://unix.pub/docs/openwrt/
- RaspberryPi: http://unix.pub/docs/raspberrypi/
- WDMyCloud vs Debian: http://unix.pub/docs/WDMyCloud/
- WD MyCloud Home安装运行Debian 11: http://unix.pub/docs/WDMyCloud/Running-Debian-11-on-WD-MyCloud-Home/
- WD MyCloud安装Debian Jessie: http://unix.pub/docs/WDMyCloud/Install-Debian-Jessie-on-WD-MyCloud-Gen1/
- WDMycloud救砖: http://unix.pub/docs/WDMyCloud/WDMycloud_Recovery/
- WDMycloud安装Debian: http://unix.pub/docs/WDMyCloud/WDMycloud_Crack_install_debian/

# head命令用法

`head`打印文件的第一部分（默认为10行）;如果没有给出文件，或当给定为 - 的文件时，它会从标准输入读取。

```sh
$ head hugo.toml
baseURL = 'https://nodeb.net/'
title = 'NodeB'
theme = 'nodeb'
paginate = 5

# 语言配置 - 使用新方式避免弃用警告
defaultContentLanguage = 'zh-cn'

[languages]
  [languages.zh-cn]

```

`-c [-]num` 打印num字节的内容，num为数字，如果前面加`-`则打印文件最后除了num字节的所有内容。

num可以加以下单位

```
‘b’  =>            512 ("blocks")
‘KB’ =>           1000 (KiloBytes)
‘K’  =>           1024 (KibiBytes)
‘MB’ =>      1000*1000 (MegaBytes)
‘M’  =>      1024*1024 (MebiBytes)
‘GB’ => 1000*1000*1000 (GigaBytes)
‘G’  => 1024*1024*1024 (GibiBytes)
```

```sh
$ head -c 60 hugo.toml
baseURL = 'https://nodeb.net/'
title = 'NodeB'
theme = 'no

$ head -c -1k hugo.toml
baseURL = 'https://nodeb.net/'
title = 'NodeB'
theme = 'nodeb'
paginate = 5

# 语言配置 - 使用新方式避免弃用警告
defaultContentLanguage = 'zh-cn'

[languages]
  [languages.zh-cn]
    label = "中文"
    locale = 'z

```

`-n [-]num` 输出num行内容，如果前面加了`-`则标识输出文件末尾num行以外的内容。

```sh
$ head -n 5 hugo.toml
baseURL = 'https://nodeb.net/'
title = 'NodeB'
theme = 'nodeb'
paginate = 5
$ head -n -50 hugo.toml
baseURL = 'https://nodeb.net/'
title = 'NodeB'
theme = 'nodeb'
paginate = 5

# 语言配置 - 使用新方式避免弃用警告
defaultContentLanguage = 'zh-cn'

[languages]
  [languages.zh-cn]
    label = "中文"
    locale = 'zh-cn'           # 替代 languageCode
    direction = 'ltr'          # 从左到右
    weight = 1
    title = 'NodeB'



```