想知道Ubuntu命令对应的源码怎样下载吗？这里这里……

ulppknot

首先安装dpkg-dev：

        apt-get install dpkg-dev

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设置源，将原来的源复制，但把deb改为deb-src：
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#vim /etc/apt/sources.list

deb http://mirrors.163.com/ubuntu/ lucid main restricted universe multiverse

deb http://mirrors.163.com/ubuntu/ lucid-security main restricted universe multiverse

deb http://mirrors.163.com/ubuntu/ lucid-updates main restricted universe multiverse

deb-src http://mirrors.163.com/ubuntu/ lucid main restricted universe multiverse

deb-src http://mirrors.163.com/ubuntu/ lucid-security main restricted universe multiverse

deb-src http://mirrors.163.com/ubuntu/ lucid-updates main restricted universe multiverse

并执行apt-get update

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得到命令的全路径：

# which ascii

/usr/bin/ascii
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查找命令所在的包：

# dpkg -S /usr/bin/ascii

ascii: /usr/bin/ascii
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下载包的源码：

# apt-get source ascii

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当前目录下面既可以看到源码已经下载

# ls

ascii-3.8  ascii_3.8-4.diff.gz  ascii_3.8-4.dsc  ascii_3.8.orig.tar.gz
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ExxNEN

没看懂