Rename wildcards windows 7

Rather it is doing a simple character substitution following the c target mask rule. The file is then renamed again giving the final result of I haven't fully worked out all of the trigger conditions that must exist to induce this odd behavior.

I believe all of the following must be true to induce the bug. Every bugged case I saw had the following conditions, but not all cases that met the following conditions were bugged. Maybe someone can find this useful. This JavaScript code is based on the answer by dbenham above. I did not test sourceMask very much, but targetMask does match all examples given by dbenham. Ren will produce things like When my wife tells me that I need to be punished then I will file a support request with Microsoft.

I am eligible to that, but the last time I did that it was a very unpleasant experience doing this on the "professional" level coming from MSDN. I am also from software industry but not Microsoft but I can predict that this will get the lowest priority and lowest severity so I just don't do this.

I have run into a case that it is either an overlooked or undocumented special character, or just a bug. This makes difficult to remove or replace constant parts of similar file names containing the underscore character.

Googling around I found the solution using powershell Windows. The following command did the trick for me:. Sign up to join this community. The best answers are voted up and rise to the top. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Learn more. Ask Question. Asked 9 years, 4 months ago. Active 5 months ago. Viewed k times. The built in HELP facility is of no help - it doesn't address wildcards at all.

Improve this question. There's heaps of good examples of how to rename with wildcards here: lagmonster. There are significant differences.

That has huge consequences. I wish I had known about that site though; it might have made my investigation easier. I had found the pre long file name DOS rules, and they were worthless for my investigation. I did not know that ; — Matthew Lock. Add a comment. Active Oldest Votes. All non-wildcard characters must match themselves, with a few special case exceptions. For example: ren "abc.

All of the following forms without the requisite quotes fail with this error: The syntax of the command is incorrect REM - All of these forms fail with a syntax error. XX If I disable 8. Short 8. The initial rename must generate a short name that also matches the sourceMask The initial renamed short name must sort later than the original short name if it existed? Improve this answer. PeterLiljenberg updated your answer - it was missing the original filename in the rename command.

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The targetMask is processed against the source name strictly from left to right with no back-tracking. Replaces the character that was in source with c , but never replaces. If the next character is. If already at the end of source, then does nothing.

If c is not found, then all remaining characters from source are appended, followed by c This is the only situation I am aware of where Windows file pattern matching is case sensitive. If already at end of source then does nothing. After the targetMask has been exhausted, any trailing. Code: Select all ren?????.?????. Code: Select all ren????????????.????????????.???????????? XX It would be natural to expect that there'd be some consistency in handling target wildcards at least between cmd's own commands, and in fact that appears to be the case for the internal commands copy and rename.

However, the external command comp. Only variable values and fixed characters change parts of file name where they are applied. If you have any questions, please do not hesitate to contact our support team.

Skip to main content. Twitter Facebook. Renaming files using wildcards. Rename mask When using file masks as rename output i. Rename mask Details picture. Source files: image. Automate now!