回答編集履歴
1
サンプルコード追記
test
CHANGED
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@@ -1 +1,33 @@
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1
1
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`setlocal enabledelayedexpansion`をお忘れなのでは？
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動作確認したコード
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4
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5
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```batch
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6
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@echo off
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7
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set MECM2103Chk=5.00.9049.1000
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set NewMECM2103=%MECM2103Chk:~5,4%
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setlocal enabledelayedexpansion
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for /f "usebackq" %%i in (`type test.txt`) do (
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set versionNumber=%%i
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set mainNumber=!versionNumber:~5,4!
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echo !mainNumber! %NewMECM2103%
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if "!mainNumber!" EQU "%NewMECM2103%" (
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echo matched
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)
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)
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```
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```test.txt
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5.00.9012.1010
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5.00.9058.1000
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5.00.9049.1000
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9.99.9999.9999
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```
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実行結果：
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28
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9012 9049
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9058 9049
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9049 9049
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matched
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9999 9049
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33
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