>When I execute your lsnums ... nothing happens... tried giving it a
>string of arguments (some letters, some numbers) but nothing happened.
>also tried continuing input via stdin on multiple lines with no effect
>...finally used ctl d to terminate stfin .. still nothing.
>For lsfiles, if I give it a number of different file names as the
>arguments to lsfiles, it simply lists the file names back and does not
>find another file in my working directory that contains the name of one
>of the files listed as arguments... ??

>> xxxxxx at kenner> pwd
>> /green/homes/xxxxxx/cs494/lab1
>> xxxxxx at kenner> pwd
>> /green/homes/xxxxxx/cs494/lab1
>> xxxxxx at kenner> ls -lai
>> total 48
>> 364713 drwxr-x---   2 xxxxxx   graduate     512 Jun 17 09:00 ./
>> 45757 drwxr-x---   3 xxxxxx   graduate    1024 Jun 17 05:44 ../
>> 364865 -rw-r-----   1 xxxxxx   graduate      71 Jun 16 22:47 1.file
>> 364867 -rw-r-----   1 xxxxxx   graduate      71 Jun 16 22:48 2.file
>> 364868 -rw-r-----   1 xxxxxx   graduate      71 Jun 16 22:49 3.file
>> 365013 -rw-r-----   1 xxxxxx   graduate       7 Jun 17 09:00 4.file
>> 364864 -rwxr-x---   1 xxxxxx   graduate    4980 Jun 17 06:22 counter*
>> 364884 -rw-r-----   1 xxxxxx   graduate     118 Jun 17 06:22 counter.c
>> 365003 -rwxr-x---   1 xxxxxx   graduate    4808 Jun 17 06:25 forever*
>> 364885 -rw-r-----   1 xxxxxx   graduate      44 Jun 17 06:25 forever.c
>> 365011 lrwxrwxrwx   1 xxxxxx   graduate      42 Jun 17 08:52 lsfiles -> /lymon/homes/cs494/labs/Sh/programs/lsfi
>> les*
>> 365012 lrwxrwxrwx   1 xxxxxx   graduate      41 Jun 17 08:53 lsnums -> /lymon/homes/cs494/labs/Sh/programs/lsnum
>> s*
>> 365007 -rwxr-x---   1 xxxxxx   graduate     361 Jun 17 08:39 revarg*
>> 365008 -rwxr-x---   1 xxxxxx   graduate     563 Jun 17 08:39 sortfl*
>> 365006 -rwxr-x---   1 xxxxxx   graduate     376 Jun 17 08:39 square*
>> 365005 -rwxr-x---   1 xxxxxx   graduate     600 Jun 17 08:38 timex*
>> xxxxxx at kenner> lsnums 1 One 2 Two
>>  (NOTE: Entered ctl D)
>> xxxxxx at kenner>
>> xxxxxx at kenner> cat 4.file
>> 1.file
>> xxxxxx at kenner> lsfiles 1.file 2.file 3.file
>> 1.file
>> 2.file
>> 3.file
>> xxxxxx at kenner>
>

The above is correct behavior.
Reread the descriptions.  Try the following.

(on kenner)
UNIX> cd /lymon/homes/cs494/labs/Sh/programs
UNIX> cat example
one 1 
lsnums
/mahogany/homes/plank
4.5 5.yes
UNIX> lsnums < example
1
4.5
5.yes
UNIX> lsfiles example
example
lsnums
/mahogany/homes/plank
UNIX>


Jim Plank