Files, Renaming in Batch Process

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I have several folders in which files are named: C-01-001.xxx, C-01-002.xxx,
C-01-003.xxx ... C-01-080.

I would like to rename the files as: C01-001.xxx, C01-002.xxx, C01-003.xxx,
etc. In other words simply remove the dash following the first character C.

I've gone to the command prompt and entered:

a) Rename C-01-*.* C01-*.8 with the resulting name C01--001.*,
C01--002.*, etc. In fact getting another
dash.

b) Rename C-01-* C01* with the result C-01-001

c) Rename C-01* C01* with the result C011-001


It appears I need to eliminate one of the characters in the file name.

Any suggestions?


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