Return to Question

Update: I also wrote a test for this program, I would like you to give me feedback about it as well. How can I improve it

#!/bin/bash

# get the testing utilities

. $(dirname "$0")/testutil.sh

CMD="tee"

# test for stdout only
run_test "tee stdout only" < file.txt

# test for stdout and a directory 
run_test "tee stdout and directory" .. < file1.txt

TEMP_FILE1=`mktemp`
TEMP_FILE2=`mktemp`

# test for stdout and multiple files
run_test "tee stdout and multiple files" $TEMP_FILE1 $TEMP_FILE2 < file1.txt

# test for stdout and inaccesible file

chmod 000 $TEMP_FILE1 
run_test "tee stdout and inaccesible file" $TEMP_FILE1 < file1.txt

# cleanup

rm -f $TEMP_FILE1 $TEMP_FILE2 

This is a follow up question to another attempt to implement the tee command.