Specifies a true condition if variable is defined. The cmdextversion conditional is never true when command extensions are disabled (by default, command extensions are enabled).
It increases by increments of one when significant enhancements are added to the command extensions. Specifies a true condition only if the internal version number associated with the command extensions feature of Cmd.exe is equal to or greater than the number specified. These comparisons are generic, in that if both string1 and string2 are comprised of numeric digits only, the strings are converted to numbers and a numeric comparison is performed. You can use /i on the string1=string2 form of if. Specifies a three-letter comparison operator, including:įorces string comparisons to ignore case. Specifies a true condition if the specified file name exists. You do not need to enclose literal strings in quotation marks. These values can be literal strings or batch variables (for example, %1).
Specifies a true condition only if string1 and string2 are the same. Specifies the command that should be carried out if the preceding condition is met. Specifies a true condition only if the previous program run by Cmd.exe returned an exit code equal to or greater than number. Specifies that the command should be carried out only if the condition is false. If command extensions are enabled, use the following syntax: if Performs conditional processing in batch programs.
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