问题
Where I can find the source code for du and other Linux utilities?
回答1:
It is with the GNU CoreUtils package.
回答2:
David is right. You can start with the entry point, du.c, in Savannah. Also, since it's free software under the GPL, you can also get it from your GNU/Linux distribution. E.g., on Debian or Ubuntu you can generally just do:
apt-get source coreutils
to get the source for the version installed.
(EDIT by Novelocrat)
For other commands, to find out what package they're in, you can say
dpkg -S `which command`
which command will tell you the full path to that command, and dpkg -S filename will tell you what package provides a file. Then you can run apt-get source packagename to get its source code.
来源：https://stackoverflow.com/questions/3264843/linux-du-command-source-code