cmd if not equal
!==! is not an operator, so writing "asdf" !==! "fdas" is pretty nonsensical. The suggestion to use if not "asdf" == "fdas" is definitely the way to go. That works for me on Windows XP (I get the same error as you ,NOT perform the command if the condition is false. == perform the command if the two strings are equal. /I Do a case Insensitive string comparison. compare-op ... ,If the condition is found to be false, the command is not acted on and ... to determine if the first string you enter is equal (or is NOT equal) to the second string you ... , if [not] ERRORLEVEL <Number> <Command> [else <Expression>] if [not] ... <CompareOp>, Specifies a three-letter comparison operator.,How to use not equals in ms dos batch file script. [NOT] == or NEQ not equals is ... IF %a% NEQ %b% ( ECHO A is not equals to B. ) ELSE ( ECHO A is equals to ... ,How to use not equals in ms dos batch file script. [NOT] == or NEQ not equals is ... IF %a% NEQ %b% ( ECHO A is not equals to B. ) ELSE ( ECHO A is equals to ... , In short, as your variable is being set and used inside a code block and double quoting is required both sides of the == , this section should fix ...
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 cmd if not equal 相關參考資料
Batch not-equal (inequality) operator - Stack Overflow
!==! is not an operator, so writing "asdf" !==! "fdas" is pretty nonsensical. The suggestion to use if not "asdf" == "fdas" is definitely the way to go. That w... https://stackoverflow.com If - Conditionally perform command - Windows CMD - SS64.com
NOT perform the command if the condition is false. == perform the command if the two strings are equal. /I Do a case Insensitive string comparison. compare-op ... https://ss64.com IF - DOS the Easy Way Guide to MS-DOS
If the condition is found to be false, the command is not acted on and ... to determine if the first string you enter is equal (or is NOT equal) to the second string you ... http://www.easydos.com if | Microsoft Docs
if [not] ERRORLEVEL <Number> <Command> [else <Expression>] if [not] ... <CompareOp>, Specifies a three-letter comparison operator. https://docs.microsoft.com Not equals - KnowledgeWalls
How to use not equals in ms dos batch file script. [NOT] == or NEQ not equals is ... IF %a% NEQ %b% ( ECHO A is not equals to B. ) ELSE ( ECHO A is equals to ... https://www.knowledgewalls.com Not equals in Relational Operators of MS-DOS Commands
How to use not equals in ms dos batch file script. [NOT] == or NEQ not equals is ... IF %a% NEQ %b% ( ECHO A is not equals to B. ) ELSE ( ECHO A is equals to ... http://www.knowledgewalls.com Windows batch if not equal do not execute if clause - Stack Overflow
In short, as your variable is being set and used inside a code block and double quoting is required both sides of the == , this section should fix ... https://stackoverflow.com |