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/

# nl命令用法

`nl`命令将文件输出时附带显示所有行号或部分行号，默认使用效果等同于`cat -n`

```sh
$ nl push.sh
     1  rm -rf resources/ public/ .hugo_build.lock
     2  git add .
     3  git commit -m "update"
     4  git push
     5  sleep 3s
     6  echo "Done!"
     7  sleep 3s

```
`-n format`选项用来设置编号样式，有以下三种
- rn 右对齐，nl默认
- ln 左对齐
- rz 右对齐，0填充
```sh
$ nl -n ln push.sh
1       rm -rf resources/ public/ .hugo_build.lock
2
3
4       git add .
5       git commit -m "update"
6       git push
7       sleep 3s
8       echo "Done!"
9       sleep 3s

$ nl -n rn push.sh
     1  rm -rf resources/ public/ .hugo_build.lock
     2
     3
     4  git add .
     5  git commit -m "update"
     6  git push
     7  sleep 3s
     8  echo "Done!"
     9  sleep 3s

$ nl -n rz push.sh
000001  rm -rf resources/ public/ .hugo_build.lock
000002
000003
000004  git add .
000005  git commit -m "update"
000006  git push
000007  sleep 3s
000008  echo "Done!"
000009  sleep 3s
```

`-s string`选项用来设置编号和文本内容之间的分隔符，默认为TAB
```sh
$ nl -s :: push.sh
     1::rm -rf resources/ public/ .hugo_build.lock
     2::
     3::
     4::git add .
     5::git commit -m "update"
     6::git push
     7::sleep 3s
     8::echo "Done!"
     9::sleep 3s
```
`-v number`选项用来设置编号起始号，默认为1，也可以设置为负数
```sh
$ nl -v 5 push.sh
     5  rm -rf resources/ public/ .hugo_build.lock
     6
     7
     8  git add .
     9  git commit -m "update"
    10  git push
    11  sleep 3s
    12  echo "Done!"
    13  sleep 3s

$ nl -v -5 push.sh
    -5  rm -rf resources/ public/ .hugo_build.lock
    -4
    -3
    -2  git add .
    -1  git commit -m "update"
     0  git push
     1  sleep 3s
     2  echo "Done!"
     3  sleep 3s
```
`-w number`选项来设置编码位数宽度，默认为6
```sh
$ nl -w 2 push.sh -n rz
01      rm -rf resources/ public/ .hugo_build.lock
02
03
04      git add .
05      git commit -m "update"
06      git push
07      sleep 3s
08      echo "Done!"
09      sleep 3s
$ nl -w 8 push.sh -n rz
00000001        rm -rf resources/ public/ .hugo_build.lock
00000002
00000003
00000004        git add .
00000005        git commit -m "update"
00000006        git push
00000007        sleep 3s
00000008        echo "Done!"
00000009        sleep 3s
```