Bash scripts cheat reliability sheet

script.sh

#!/bin/bash

# Enable debug mode
set -x

# Log function
log() {
    echo "[INFO] $1"
}

logexit() {
    echo "[ERROR] $1 Exiting..."
    exit 1
}

# Trap
cleanup() {
    log "Cleaning up temporary files..."
    rm -f /tmp/website
}

# Trap the EXIT signal and call the cleanup function
trap cleanup EXIT

# Check if curl is installed
log "Checking if curl is installed..."
if ! command -v curl &> /dev/null; then
    logexit "curl command is not installed."
fi

# Download the website
log "Downloading the website..."
curl -s -o /tmp/website/index.html https://cv.romaindauby.fr

# Check if the download was successful
log "Checking if the download was successful..."
if [ $? -ne 0 ]; then
    logexit "An error occurred while downloading the website."
fi

# Exit with success
log "Script completed successfully."
exit 0