SMF 2.0.11 | SMF © 2015, Simple Machines Page created in 0.178 seconds with 23 queries. For example, the if command carries out a command based on the results of a condition. In that case, ERRORLEVEL is exactly what you want. or if errorlevel 1 ....
billrich Guest Re: DOS IF %ERRORLEVEL% construct « Reply #4 on: September 02, 2009, 09:29:06 AM » Quote from: Salmon Trout on September 02, 2009, 09:00:08 AMCode: [Select]
IF %ERRORLEVEL% NEQ Why is nuclear waste more dangerous than the original nuclear fuel? set result=0 find /I "whatever" temp.txt set result=%ERRORLEVEL% REM Now do a bunch of IF statements based on the error level value, but checking %ERRORLEVEL%, some of which would set a
setlocal set dofoo=no if ERRORLEVEL 17 set dofoo=yes if ERRORLEVEL 18 set dofoo=no if "%dofoo%"=="yes" foo rem TASK 2: using only rem if "%ERRORLEVEL%"=="%n%" rem simulate rem You just have to understand that it's a fallback and not an actual variable. -Raymond] Adam says: September 26, 2008 at 10:49 am I feel like have a special shell builtin To determine the exact return code the previous command returned, we could use a construction like this: @ECHO OFF IF ERRORLEVEL 1 SET ERRORLEV=1 IF ERRORLEVEL 2 SET ERRORLEV=2 IF ERRORLEVEL Errorlevel Vs %errorlevel% Salmon TroutGeniusThanked: 843 Computer: Specs Experience: Experienced OS: Other Re: DOS IF %ERRORLEVEL% construct « Reply #11 on: September 02, 2009, 03:34:18 PM » Quote from: BC_Programmer on September 02, 2009,
If you file a change-of-address form for yourself, that doesn't affect packages sent to your neighbor. Batch If Errorlevel Not 0 Conditional permutation of combining multiple lists Who created the Secret Stairs as a way into Mordor and for what purpose? in the "past". http://www.robvanderwoude.com/errorlevel.php The set and export command fail if you try.
Finding The nth Prime such that the prime - 1 is divisible by n Why don't my users have separate desktops in Windows 10? Dos If Else In DOS for the rest of us, we can use FOR loops to determine the errorlevel: @ECHO OFF REM Reset variables FOR %%A IN (1 10 100) DO SET ERR%%A= REM breakfast availability in Japan? EXIT 0 share|improve this answer edited Feb 28 '14 at 23:23 answered Jun 12 '13 at 22:10 djangofan 11.9k32111187 Your note is OK, but your code would give a
The safest way to use errorlevels for all DOS versions is the reverse order check. http://stackoverflow.com/questions/6812484/batch-file-test-error-level if %ERRORLEVEL% == 0 ( echo ErrorLevel is zero echo A second statement ) else if %ERRORLEVEL% == 1 ( echo ErrorLevel is one echo A second statement ) else ( If Errorlevel Neq 0 The == comparison operator always results in a string comparison. Batch File If Else Why are static password requirements used so frequently?
A certain errorlevel may mean anything the programmer wanted it to. http://objectdevcorp.com/batch-file/batch-file-if-errorlevel-else.html Didn't know that together they essentially work like IF...ELSE. GOTO continue :continue ........ :end Note: that the order of IF commands is most important! A series of IF commands are used to display various status message at the conclusion of the copying process. Errorlevel Codes
How do I get the last lines of dust into the dustpan? Seems unfair that the microsoft tool gets fancy environment variable expansion, but the only API exposed does plain and ordinary expansion. (*) Really just the "Comments" section, not the entry itself. Who created the Secret Stairs as a way into Mordor and for what purpose? check over here Why is engine displacement frequently a few CCs below an exact number?
Should the condition be False, a zero byte file is created. If Condition In Batch File For: IF NOT condition command command is executed should condition be FALSE and skipped if TRUE. Something like this: ::x.bat @set RetCode=My.exe @if %retcode% is nonzero handleError.exe As a bonus, you may consider answering the following questions, please :) How to write a compound statement with if?
It's just a variable whose name happens to coincide with a command processor concept. To test for the existence of a user variable use SET errorlevel, or IF DEFINED ERRORLEVEL If Command Extensions are disabled IF will only support direct comparisons: IF ==, IF EXIST, This is an important difference because if you compare numbers as strings it can lead to unexpected results: "2" will be greater than "19" and "026" will be greater than "26". Echo Errorlevel error-handling batch-file share|improve this question asked Jul 25 '11 at 6:32 Daniel Powell 5,04934081 Hmm, perhaps 1( is wrong?
In Windows NT4/2000/XP this may sometimes fail, since some executables return negative numbers for errorlevels! Test Numeric values IF only parses numbers when one of the compare-op operators (EQU, NEQ, LSS, LEQ, GTR, GEQ) is used. variable at all. this content page last uploaded: 2016-09-19, 14:57 current community chat Stack Overflow Meta Stack Overflow your communities Sign up or log in to customize your list.
Not the answer you're looking for? I thought my ponderous prose style and choleric disposition would give me away to all, but it seems I have been lucky. Based on some quick tests, it would appear that the command processor is reinterpreting it as if errorlevel 0 do-something which means "if errorlevel is at least 0 do something". Start with the highest possible number and go down towards zero.
What if that process hasn't exited yet? If not, how can I detect that My.exe failed to start? The comparison is case sensitive ie. and IF ERRORLEVEL 1 (ECHO failed) ELSE (ECHO succeeded) outputs succeeded.
A simple example that does work: Echo Y | IF red==blue del *.log Chaining IF commands (AND). Try something like this: IF '%ERRORLEVEL%'=='0' GOTO OK share|improve this answer edited Sep 25 '14 at 18:34 demongolem 5,271115075 answered Sep 25 '14 at 18:29 cdndcnj 111 add a comment| Your If quitting CMD.EXE, sets the process exit code with that number. [Brought to my attention by Maor Conforti. Wildcards Wildcards are not supported by IF, so %COMPUTERNAME%==SS6* will not match SS64 A workaround is to retrieve the substring and compare just those characters: SET _prefix=%COMPUTERNAME:~0,3% IF %_prefix%==SS6 GOTO they_matched
You need either if %errorlevel% == 1 dosomething or if errorlevel 1 dosomething Where the second method will execute dosomething if errorlevel is 1 or is greater than 1 consequently, if Peter says: September 26, 2008 at 11:45 am I've just updated the ExpandEnvironmentStrings MSDN entry (*) to reflect this -- the CMD expansion is really different from what the "real" expansion And I still hate it. Join them; it only takes a minute: Sign up batch file test error level up vote 4 down vote favorite 2 I'm trying to conditionally run an exe from a batch
kid in winter What difficulty would the Roman Empire have besieging a fantasy kingdom's 49m wall? more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed Windows NT4 and later: In NT4 use either COLOR00 or VERIFYOTHER2>NUL to set an errorlevel 1. Goodness Giza Golf!
For example, a value of 0 is typically used to indicate that a program was successfully executed.