2017年3月17日 · It's a variable. That particular example uses the directory option of a FOR loop, iterating through the directories and assigning them to %%A. That's also not a command-line example, but a batch file example. In batch files, you need to use %%A, while on the command-line, you'd just use %A.

2013年4月22日 · I have seen the usage of %* in batch files and command lines. Can someone explain the typical usage of %* with an example?

2014年1月13日 · This is a (possibly common) pattern for Windows exe command-line options. armclang.exe supports this command-line option @<file> Read command-line options from <file>. Before finding this message in the help, I, too assumed this was batch code syntax. I guess I'm not accustomed to command-line options starting with @.

2020年2月12日 · This updates the files modified date. E.G. copy /b file1,, %variablename% an inbuilt or user set environmental variable !variablename! a user set environmental variable expanded at execution time, turned with SetLocal EnableDelayedExpansion command %<number> (%1) the nth command line parameter passed to a batch file. %0 is the batchfile's …

The solution using IF NOT == seems the most sound approach. I can't immediately think of a circumstance in which the evaluation of operations in a batch file would cause an issue or unexpected behavior when applying the IF NOT == comparison method to strings.

2010年1月26日 · How would you implement logical operators in Windows batch files?

2009年12月23日 · Thanks. Is it applicable only for echo or for all the commands which follow as a positive result for if statement?

2010年4月12日 · I have created an executable .jar file. How can I execute the .jar using a batch-file without mentioning a class path?

2012年6月18日 · I have a question about if - else structure in a batch file. Each command runs individually, but I couldn't use &quot;if - else&quot; blocks safely so these parts of my programme doesn't work. How ...

2013年1月24日 · In addition to %G in a for loop, %1 is also allowed. %% is needed in a script to avoid ambiguities. "When working at the command line (not in a batch script) there is no possibility of any batch file parameters %1, %2 etc so the logic above is not followed and hence FOR parameters on the command line only need a single %." See details.