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#!/bin/bash
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# ===========================================
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# 学生状态变更处理脚本控制程序
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# 用于启动、停止、重启处理脚本
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# ===========================================
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set -euo pipefail
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# Load configuration
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SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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CONFIG_FILE="${SCRIPT_DIR}/data.conf"
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if [[ ! -f "$CONFIG_FILE" ]]; then
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echo "Error: Configuration file $CONFIG_FILE not found!"
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exit 1
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fi
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source "$CONFIG_FILE"
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# Script definitions
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declare -A SCRIPTS=(
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["changes"]="process_student_changes.sh"
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["resume"]="process_student_resume.sh"
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)
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# PID files
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PID_DIR="${SCRIPT_DIR}/pids"
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mkdir -p "$PID_DIR"
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# Functions
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log() {
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local level="$1"
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local message="$2"
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local timestamp=$(date '+%Y-%m-%d %H:%M:%S')
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echo "[$timestamp] [$level] $message"
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}
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get_pid_file() {
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local script_name="$1"
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echo "${PID_DIR}/${script_name}.pid"
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}
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get_lock_file() {
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local script_name="$1"
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echo "${SCRIPT_DIR}/${script_name}.lock"
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}
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is_running() {
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local script_name="$1"
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local pid_file=$(get_pid_file "$script_name")
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local lock_file=$(get_lock_file "$script_name")
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# Check PID file
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if [[ -f "$pid_file" ]]; then
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local pid=$(cat "$pid_file")
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if kill -0 "$pid" 2>/dev/null; then
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return 0 # Running
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else
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log "WARN" "Removing stale PID file for $script_name"
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rm -f "$pid_file"
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fi
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fi
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# Check lock file
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if [[ -f "$lock_file" ]]; then
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local lock_pid=$(cat "$lock_file")
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if kill -0 "$lock_pid" 2>/dev/null; then
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return 0 # Running
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else
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log "WARN" "Removing stale lock file for $script_name"
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rm -f "$lock_file"
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fi
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fi
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return 1 # Not running
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}
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start_script() {
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local script_name="$1"
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local script_file="${SCRIPT_DIR}/${SCRIPTS[$script_name]}"
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local pid_file=$(get_pid_file "$script_name")
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if [[ ! -f "$script_file" ]]; then
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log "ERROR" "Script file not found: $script_file"
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return 1
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fi
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if is_running "$script_name"; then
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log "INFO" "$script_name is already running"
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return 0
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fi
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log "INFO" "Starting $script_name..."
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chmod +x "$script_file"
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# Start script in background
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nohup "$script_file" > /dev/null 2>&1 &
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local pid=$!
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# Wait a moment for script to start
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sleep 2
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if kill -0 "$pid" 2>/dev/null; then
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echo $pid > "$pid_file"
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log "INFO" "$script_name started successfully (PID: $pid)"
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return 0
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else
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log "ERROR" "Failed to start $script_name"
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return 1
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fi
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}
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stop_script() {
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local script_name="$1"
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local pid_file=$(get_pid_file "$script_name")
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local lock_file=$(get_lock_file "$script_name")
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local stopped=false
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log "INFO" "Stopping $script_name..."
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# Try to stop by PID file
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if [[ -f "$pid_file" ]]; then
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local pid=$(cat "$pid_file")
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if kill -0 "$pid" 2>/dev/null; then
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kill "$pid"
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sleep 2
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if ! kill -0 "$pid" 2>/dev/null; then
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log "INFO" "$script_name stopped successfully (PID: $pid)"
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stopped=true
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fi
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fi
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rm -f "$pid_file"
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fi
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# Try to stop by lock file
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if [[ -f "$lock_file" ]]; then
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local lock_pid=$(cat "$lock_file")
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if kill -0 "$lock_pid" 2>/dev/null; then
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kill "$lock_pid"
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sleep 2
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if ! kill -0 "$lock_pid" 2>/dev/null; then
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log "INFO" "$script_name stopped successfully (PID: $lock_pid)"
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stopped=true
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fi
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fi
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rm -f "$lock_file"
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fi
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if [[ "$stopped" == false ]]; then
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log "WARN" "$script_name may not have been running or failed to stop gracefully"
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fi
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}
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restart_script() {
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local script_name="$1"
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log "INFO" "Restarting $script_name..."
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stop_script "$script_name"
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sleep 3
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start_script "$script_name"
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}
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status_script() {
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local script_name="$1"
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if is_running "$script_name"; then
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local pid_file=$(get_pid_file "$script_name")
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local lock_file=$(get_lock_file "$script_name")
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if [[ -f "$pid_file" ]]; then
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local pid=$(cat "$pid_file")
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log "INFO" "$script_name is running (PID: $pid)"
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elif [[ -f "$lock_file" ]]; then
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local lock_pid=$(cat "$lock_file")
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log "INFO" "$script_name is running (PID: $lock_pid)"
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else
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log "INFO" "$script_name status unknown"
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fi
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else
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log "INFO" "$script_name is not running"
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fi
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}
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show_usage() {
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cat << EOF
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Usage: $0 <command> <script_name>
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Commands:
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start Start the specified script
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stop Stop the specified script
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restart Restart the specified script
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status Show status of the specified script
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startall Start all scripts
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stopall Stop all scripts
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statusall Show status of all scripts
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Script names:
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changes Student status changes script (休学/退学/毕业)
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resume Student resume script (复学)
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all All scripts
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Examples:
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$0 start changes # Start changes processing script
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$0 stop resume # Stop resume processing script
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$0 restart changes # Restart changes processing script
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$0 status all # Show status of all scripts
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$0 startall # Start all scripts
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$0 stopall # Stop all scripts
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EOF
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}
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# Main function
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main() {
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local command="${1:-}"
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local script_name="${2:-}"
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case "$command" in
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start)
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if [[ "$script_name" == "all" ]]; then
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for script in "${!SCRIPTS[@]}"; do
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start_script "$script"
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done
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elif [[ -n "${SCRIPTS[$script_name]}" ]]; then
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start_script "$script_name"
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else
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log "ERROR" "Unknown script name: $script_name"
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show_usage
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exit 1
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fi
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;;
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stop)
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if [[ "$script_name" == "all" ]]; then
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for script in "${!SCRIPTS[@]}"; do
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stop_script "$script"
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done
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elif [[ -n "${SCRIPTS[$script_name]}" ]]; then
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stop_script "$script_name"
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else
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log "ERROR" "Unknown script name: $script_name"
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show_usage
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exit 1
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fi
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;;
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restart)
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if [[ "$script_name" == "all" ]]; then
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for script in "${!SCRIPTS[@]}"; do
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restart_script "$script"
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done
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elif [[ -n "${SCRIPTS[$script_name]}" ]]; then
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restart_script "$script_name"
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else
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log "ERROR" "Unknown script name: $script_name"
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show_usage
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exit 1
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fi
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;;
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status)
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if [[ "$script_name" == "all" ]]; then
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for script in "${!SCRIPTS[@]}"; do
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status_script "$script"
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done
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elif [[ -n "${SCRIPTS[$script_name]}" ]]; then
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status_script "$script_name"
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else
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log "ERROR" "Unknown script name: $script_name"
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show_usage
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exit 1
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fi
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;;
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startall)
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log "INFO" "Starting all scripts..."
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for script in "${!SCRIPTS[@]}"; do
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start_script "$script"
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done
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;;
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stopall)
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log "INFO" "Stopping all scripts..."
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for script in "${!SCRIPTS[@]}"; do
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stop_script "$script"
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done
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;;
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statusall)
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log "INFO" "Checking status of all scripts..."
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for script in "${!SCRIPTS[@]}"; do
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status_script "$script"
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done
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;;
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*)
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log "ERROR" "Unknown command: $command"
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show_usage
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exit 1
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;;
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esac
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}
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# Run main function
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main "$@"
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