【bat】バッチファイルで指定アプリを自動再起動する完全ガイド｜定期再起動・異常終了検知・複数アプリ・ログ記録・管理者権限まで

@echo off
setlocal

REM ===== 設定 =====
set APP_EXE=notepad.exe
set APP_PATH=C:\Windows\System32\notepad.exe
set INTERVAL_SEC=1800
REM ================

:RESTART_LOOP
echo [%DATE% %TIME%] アプリを再起動します: %APP_EXE%

REM 実行中なら終了
tasklist /FI "IMAGENAME eq %APP_EXE%" 2>nul | findstr /i "%APP_EXE%" >nul
if %ERRORLEVEL% equ 0 (
    taskkill /im "%APP_EXE%" /f >nul 2>&1
    timeout /t 3 /nobreak >nul
)

REM 起動
start "" "%APP_PATH%"
echo [%DATE% %TIME%] 起動完了。%INTERVAL_SEC%秒後に再起動します

timeout /t %INTERVAL_SEC% /nobreak >nul
goto RESTART_LOOP

@echo off
REM 使い方: restart.bat [EXE名] [フルパス] [インターバル秒]
REM 例: restart.bat notepad.exe "C:\Windows\notepad.exe" 3600
setlocal

if "%~1"=="" ( echo 使い方: %~n0 [EXE名] [フルパス] [秒] & exit /b 1 )

set APP_EXE=%~1
set APP_PATH=%~2
set INTERVAL_SEC=%~3
if "%INTERVAL_SEC%"=="" set INTERVAL_SEC=3600

:LOOP
echo [%TIME%] %APP_EXE% を再起動
taskkill /im "%APP_EXE%" /f >nul 2>&1
timeout /t 2 /nobreak >nul
start "" "%APP_PATH%"
timeout /t %INTERVAL_SEC% /nobreak >nul
goto LOOP

@echo off
setlocal enabledelayedexpansion

REM ===== 設定 =====
set APP_EXE=myapp.exe
set APP_PATH=C:\apps\myapp.exe
set APP_ARGS=--config config.ini
set CHECK_INTERVAL=10
set RESTART_COUNT=0
set MAX_RESTART=20
set LOGFILE=C:\logs\restart.log
REM ================

if not exist "C:\logs" mkdir "C:\logs"

REM 初回起動
echo [%DATE% %TIME%] 初回起動: %APP_EXE% >> "%LOGFILE%"
start "" "%APP_PATH%" %APP_ARGS%

:MONITOR_LOOP
timeout /t %CHECK_INTERVAL% /nobreak >nul

REM プロセスの存在確認
tasklist /FI "IMAGENAME eq %APP_EXE%" 2>nul | findstr /i "%APP_EXE%" >nul
if %ERRORLEVEL% equ 0 goto MONITOR_LOOP

REM プロセスが落ちていた場合
set /a RESTART_COUNT+=1
echo [%DATE% %TIME%] !APP_EXE! 停止を検知。再起動 #!RESTART_COUNT! >> "%LOGFILE%"

if !RESTART_COUNT! gtr %MAX_RESTART% (
    echo [%DATE% %TIME%] 再起動上限 %MAX_RESTART% 回に到達。監視を終了します >> "%LOGFILE%"
    exit /b 1
)

start "" "%APP_PATH%" %APP_ARGS%
echo [%DATE% %TIME%] 再起動完了 #!RESTART_COUNT! >> "%LOGFILE%"
goto MONITOR_LOOP

@echo off
setlocal enabledelayedexpansion

REM 監視対象リスト（EXE名=起動コマンド の形式）
set APP1_EXE=appA.exe
set APP1_CMD=C:\apps\appA.exe --mode watch
set APP2_EXE=appB.exe
set APP2_CMD=C:\apps\appB.exe
set APP3_EXE=notepad.exe
set APP3_CMD=C:\Windows\notepad.exe

set CHECK_INTERVAL=15
set LOGFILE=C:\logs\multi_restart.log
if not exist "C:\logs" mkdir "C:\logs"

REM 初回起動
for /l %%I in (1,1,3) do (
    call :start_app %%I
)

:MONITOR_LOOP
timeout /t %CHECK_INTERVAL% /nobreak >nul

for /l %%I in (1,1,3) do (
    call :check_and_restart %%I
)
goto MONITOR_LOOP

:check_and_restart
set IDX=%1
call set EXE=%%APP!IDX!_EXE%%
call set CMD=%%APP!IDX!_CMD%%
tasklist /FI "IMAGENAME eq !EXE!" 2>nul | findstr /i "!EXE!" >nul
if %ERRORLEVEL% neq 0 (
    echo [%DATE% %TIME%] !EXE! を再起動 >> "%LOGFILE%"
    start "" !CMD!
)
goto :eof

:start_app
set IDX=%1
call set CMD=%%APP!IDX!_CMD%%
start "" !CMD!
goto :eof

@echo off
setlocal enabledelayedexpansion

set APP_EXE=myapp.exe
set APP_PATH=C:\apps\myapp.exe
set CHECK_INTERVAL=10

REM ログファイルは日付別
set LOGDIR=C:\logs\restart
if not exist "%LOGDIR%" mkdir "%LOGDIR%"

:GET_LOG
for /f "tokens=1-3 delims=/" %%A in ("%DATE%") do (
    set LOG_DATE=%%A%%B%%C
)
set LOGFILE=%LOGDIR%\%LOG_DATE%.log

set RESTART_COUNT=0
set START_TIME=%TIME%

REM 初回起動
echo [%DATE% %TIME%] ===== 監視開始: %APP_EXE% ===== >> "%LOGFILE%"
start "" "%APP_PATH%"

:MONITOR
timeout /t %CHECK_INTERVAL% /nobreak >nul

REM 日付が変わったらログファイルを更新
for /f "tokens=1-3 delims=/" %%A in ("%DATE%") do (
    set TODAY=%%A%%B%%C
)
if not "%LOG_DATE%"=="%TODAY%" goto GET_LOG

tasklist /FI "IMAGENAME eq %APP_EXE%" 2>nul | findstr /i "%APP_EXE%" >nul
if %ERRORLEVEL% equ 0 goto MONITOR

REM 再起動
set /a RESTART_COUNT+=1
echo [%DATE% %TIME%] [#!RESTART_COUNT!] %APP_EXE% 停止 → 再起動 >> "%LOGFILE%"
start "" "%APP_PATH%"
goto MONITOR

@echo off
setlocal

set LOGFILE=C:\logs\restart.log
set MAX_SIZE=1048576
REM 1MB を超えたらローテーション

if exist "%LOGFILE%" (
    for %%F in ("%LOGFILE%") do set FILE_SIZE=%%~zF
    if !FILE_SIZE! gtr %MAX_SIZE% (
        move /y "%LOGFILE%" "%LOGFILE%.bak" >nul
        echo [%DATE% %TIME%] ログローテーション実施 >> "%LOGFILE%"
    )
)
endlocal

@echo off
setlocal

REM 管理者権限チェック
net session >nul 2>&1
if %ERRORLEVEL% neq 0 (
    echo 管理者権限が必要です。UAC で昇格を要求します...
    powershell -Command "Start-Process cmd -ArgumentList '/c "%~f0"' -Verb RunAs"
    exit /b
)

echo 管理者権限で実行中

:RESTART_LOOP
set APP_EXE=protected_app.exe
set APP_PATH=C:\apps\protected_app.exe

taskkill /im "%APP_EXE%" /f >nul 2>&1
timeout /t 3 /nobreak >nul
start "" "%APP_PATH%"
echo [%TIME%] 管理者権限で再起動しました

timeout /t 3600 /nobreak >nul
goto RESTART_LOOP

@echo off
setlocal

REM 事前にタスクスケジューラに登録済みのタスク名
set TASK_NAME=MyAdminApp_Restart
set APP_EXE=protected_app.exe

:MONITOR_LOOP
timeout /t 10 /nobreak >nul

tasklist /FI "IMAGENAME eq %APP_EXE%" 2>nul | findstr /i "%APP_EXE%" >nul
if %ERRORLEVEL% neq 0 (
    echo [%TIME%] %APP_EXE% 停止検知。タスク経由で再起動します
    schtasks /run /tn "%TASK_NAME%"
    timeout /t 5 /nobreak >nul
)
goto MONITOR_LOOP

@echo off
setlocal

set APP_PATH=C:\apps\myapp.exe
set APP_ARGS=--config config.ini
set MAX_RESTART=10
set LOGFILE=C:\logs\ps_restart.log
if not exist "C:\logs" mkdir "C:\logs"

powershell -NoProfile -ExecutionPolicy Bypass -Command "
    $appPath = '%APP_PATH%'
    $appArgs = '%APP_ARGS%'
    $logFile = '%LOGFILE%'
    $maxRestart = %MAX_RESTART%
    $count = 0

    while ($count -lt $maxRestart) {
        $proc = Start-Process -FilePath $appPath -ArgumentList $appArgs -PassThru
        $ts = Get-Date -Format 'yyyy/MM/dd HH:mm:ss'
        Add-Content -Path $logFile -Value "[$ts] 起動 PID=$($proc.Id) #$count"

        $proc.WaitForExit()
        $exitCode = $proc.ExitCode
        $ts = Get-Date -Format 'yyyy/MM/dd HH:mm:ss'
        Add-Content -Path $logFile -Value "[$ts] 終了 ExitCode=$exitCode"

        if ($exitCode -eq 0) {
            Write-Host "[OK] 正常終了。再起動しません"
            break
        }

        $count++
        Start-Sleep -Seconds 3
    }
    if ($count -ge $maxRestart) {
        Add-Content -Path $logFile -Value "[$(Get-Date -Format 'HH:mm:ss')] 再起動上限到達"
    }
"

echo PowerShell 監視終了

powershell -NoProfile -ExecutionPolicy Bypass -Command "
    $appPath = 'C:\apps\myapp.exe'
    $logFile = 'C:\logs\ps_restart.log'
    $quickCrashSec = 10
    $count = 0
    $maxRestart = 5

    while ($count -lt $maxRestart) {
        $startTime = Get-Date
        $proc = Start-Process -FilePath $appPath -PassThru
        $proc.WaitForExit()

        $elapsed = (Get-Date) - $startTime
        if ($elapsed.TotalSeconds -lt $quickCrashSec) {
            $msg = "[$(Get-Date -Format 'HH:mm:ss')] 即死クラッシュ(${elapsed}s)。再起動 #$count"
        } else {
            $msg = "[$(Get-Date -Format 'HH:mm:ss')] 正常動作後終了(${elapsed}s)。再起動 #$count"
        }
        Add-Content -Path $logFile -Value $msg
        $count++
        Start-Sleep -Seconds 3
    }
    Add-Content -Path $logFile -Value '[終了] 再起動上限到達'
"