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    <p>Standard DELAYEDEXPANSION problem.</p> <p>This is ONE compound statement:</p> <pre><code>if "%CURRENTTIME%" LSS "%BREAKUNTIL%" ( shutdown -s -t 30 ) else ( shutdown -s -t 1800 set CLOSETIME = %CURRENTTIME% echo CLOSETIME: %CLOSETIME% set /A CLOSETIME = %CLOSETIME% + 30 set /A CLOSETIME = %CLOSETIME% %% 1440 echo %CLOSETIME% echo %CLOSETIME% &gt; lastclose.txt ) </code></pre> <p>When the statement is PARSED, the CURRENT values of any <code>%var%</code> are substituted and <strong><em>THEN</em></strong> the statement is executed. The value isn't ASSIGNED to <code>closetime</code> until the statement is EXECUTED, hence the statement is interpreted as</p> <pre><code>if "%CURRENTTIME%" LSS "%BREAKUNTIL%" ( shutdown -s -t 30 ) else ( shutdown -s -t 1800 set CLOSETIME = %CURRENTTIME% echo CLOSETIME: set /A CLOSETIME = + 30 set /A CLOSETIME = %% 1440 echo echo &gt; lastclose.txt ) </code></pre> <p>Easiest cure is to change this sequence to</p> <pre><code>if "%CURRENTTIME%" LSS "%BREAKUNTIL%" ( shutdown -s -t 30 GOTO :EOF ) shutdown -s -t 1800 set CLOSETIME = %CURRENTTIME% echo CLOSETIME: %CLOSETIME% set /A CLOSETIME = %CLOSETIME% + 30 set /A CLOSETIME = %CLOSETIME% %% 1440 echo %CLOSETIME% echo %CLOSETIME% &gt; lastclose.txt </code></pre> <p>Note that <code>GOTO :EOF</code> where the colon is <code>required</code> means 'go to the physical end-of-file.</p> <p>Second easiest is to execute</p> <pre><code>SETLOCAL ENABLEDELAYEDEXPANSION </code></pre> <p>somewhere before this <code>IF</code> statement (commonly directly after the <code>@echo off</code>) and change the <code>IF</code> to</p> <pre><code>if "%CURRENTTIME%" LSS "%BREAKUNTIL%" ( shutdown -s -t 30 ) else ( shutdown -s -t 1800 set CLOSETIME = %CURRENTTIME% echo CLOSETIME: !CLOSETIME! set /A CLOSETIME = !CLOSETIME! + 30 set /A CLOSETIME = !CLOSETIME! %% 1440 echo !CLOSETIME! echo !CLOSETIME! &gt; lastclose.txt ) </code></pre> <p>Noting that when <code>DELAYEDEXPANSION</code> is in effect, <code>!var!</code> returns the RUNTIME value of <code>var</code> (ie as it changes) whereas <code>%var%</code> returns the PARSE-TIME value of <code>var</code> (ie as it stood when the statement was parsed, before execution.)</p>
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    1. POcan't get variable value in the if statement in windows batch file
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    1. USMagoo
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    1. POcan't get variable value in the if statement in windows batch file
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    1. COThanks. It explains a lot. I must have done something wrong with goto and labels - I will try it again.
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      1. USJaroslaw Pawlak
    2. COThere is also one extra problem - there should be "set /A CLOSETIME = %CURRENTTIME%".
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      1. USJaroslaw Pawlak
    3. COHmm - yes. `SET /a` assigns the value of an arithmetic expression to a variable, and it's not sensitive to spaces. `SET var = expression` will set the variable `"var "` not `"var"` and both leading and trailing spaces will be included in the STRING value assigned. Hence the `/a` is required using the construct used. Quite right.
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      1. USMagoo
 

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