#!/bin/csh
# CSC 271 Midterm Exam, Fall 1994, problem 3:
# Write a shell script with two parameters, the first a file name and
# the second a directory name (for extra credit, have the second
# parameter default to the current directory if not specified).
# Your script should execute an "ls" command on the specified
# directory, putting the output into the specified file name in the
# directory _above_ the specified one.  (This example is for real:
# I actually needed to do something like this last month.)  Don't
# worry about what to do if the user gives the wrong number of kind
# of parameters.
# 
# For example, if I typed "p3 outfile ~/install", it would execute
# the command "ls ~/install" and put the output into the file
# ~/outfile.
# 
# Extra credit: write the script so it'll run, successfully and
# without warning messages, regardless of whether the output file
# already exists.
if ( $#argv < 2 ) then
   set dir=.
else
   set dir=$2
endif
unset noclobber
ls $dir >$dir/../$1