#!/bin/sh -u
# demonstrate the use of the shell "read" built-in command
# -----
# Syntax: $0           (no arguments)
# -----
# Purpose:
#  Prompt for a file name and a userid.
#  Display the given filename on the terminal of the given userid.
# -----
# -IAN! idallen@idallen.ca

# Use standard search path, friendly umask, ASCII collating and sorting.
# Set the language and character set to be ASCII/C standard.
#
PATH=/bin:/usr/bin ; export PATH
LC_COLLATE=C ; export LC_COLLATE
LANG=C ; export LANG
umask 022

# prompt on stderr and read the file name and userid from standard input
# quick-exit the script if the user enters EOF (and the read returns non-zero)
#
echo 1>&2 "$0: Enter a file name and a userid on one line:"
read filename userid || exit 1

# send the file to the given userid
#
write "$userid" <"$filename"

# The script exits with the return status of the last command executed.