Return Error Level
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Batch Files
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Windowsバッチでイベントログに出力する方法＋オプション説明表・サンプルPGも掲載 – Rainbow Engine
errorlevel（終了コードを取得する）
Batch File Return Code - Explanation And Example
choice (command) - Wikipedia
How tp faild the step when batch script return %errorlevel% otherthen 0 - Execution - Octopus Deploy
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コマンドが失敗したときに異常終了しましたと表示させたいとき~errorlevel - Qiita
Set errorlevel in Windows batch file - Stack Overflow
File Not Found Errors in cmd.exe
windows - Why the return value of "echo" is always 1 - Stack Overflow
cmd - ERRORLEVEL cannot report regsvr32's process exit code, why? - Stack Overflow
errorlevel（終了コードを取得する）
errorlevel（終了コードを取得する）
Batch Script - Return code - GeeksforGeeks
Archived News from Rob van der Woude's Scripting Pages, 2014 Q3
Understanding the Connection Between Application Output and ErrorLevel – John's Random Thoughts and Discussions
Batch - how to use errorlevel - YouTube
Introduction to Command Line & Batch files
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Batch File to Ping
