ex1,4 sh w5

#!/bin/bash

if [ $# -ne 1 ]; then
    echo "Usage: $0 <number of subscribers>"
    exit 1
fi

num_subscribers=$1

# Create the directory for named pipes if it doesn't exist
mkdir -p /tmp/ex1

# Create named pipes for each subscriber
for ((i=1; i<=$num_subscribers; i++)); do
    mkfifo /tmp/ex1/s$i
done

# Compile the C programs
gcc publisher.c -o publisher
gcc subscriber.c -o subscriber

# Start the publisher
./publisher $num_subscribers &

# Start the subscribers in separate terminal windows
for ((i=1; i<=$num_subscribers; i++)); do
    gnome-terminal -- ./subscriber $i
done