l1.2b

<B>Digital的Unix操作系统VAX 4.2源码</B>

#print
You can use the "ls" command to find out how
many files you have in your directory.
How many files are there in the current
directory now?  Make another list - the list of files
that you made before is no longer right because I added
some files to the directory.  When you find out
how many files there are in this directory, type
"answer N" where N is the number of files.
#create a1
file a1
#create a2
file a2
#create X1
file a1
#copyin
#user
#uncopyin
ls | %s/../bin/lcount >X1
tail -1 .copy >X2
#cmp X1 X2
#log
#next
2.1a 10
2.2a 5