ilo-pona/xv6-65oo2
1
0
Fork 0
Code Issues Pull requests Packages Projects Releases Activity

find

Browse source
This commit is contained in:
Frans Kaashoek 2019-07-24 14:26:05 -04:00
parent 711bd3156d
commit 5d75346e4a
1 changed files with 11 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

14
labs/xv6.html
View file

@ -82,8 +82,8 @@ initial file system. You just ran one of them: <tt>ls</tt>.
<h2>sleep</h2>
<p>Write a program that sleeps for a user-specified number of seconds,
compile it, and run it.
<p>Implement the UNIX program sleep, which sleeps for a user-specified
number of ticks.
<p>Some hints:
<ul>
@ -94,7 +94,7 @@ initial file system. You just ran one of them: <tt>ls</tt>.
<li>The argument is passed as a string; you can convert it to an
integer using <tt>atoi</tt> (see user/ulib.c).
<li>Use the system call <tt>sleep</tt> (see user/usys.S).
<li>Use the system call <tt>sleep</tt> (see user/usys.S and kernel/sysproc.c).
<li>Make sure <tt>main</tt> calls <tt>exit()</tt> in order to exit
your program.
@ -143,6 +143,14 @@ initial file system. You just ran one of them: <tt>ls</tt>.
<h2>find</h2>
<p>Write a simple version of the UNIX find program: find all the files
in a directory tree that contain a user-specified string.
<p>Some hints:
<ul>
<li>Look at user/ls.c to see how to read directories.
</ul>
<h2>Optional: modify shell</h2>
<p>Modify the shell to support lists of commands, separated by ";"