You can use glob for get all files with pattern coord.* in your path and rename them with os.rename. import os import glob path=”Files/” for file in glob.glob(path+’coord.*’): f,s = file.split(‘.’,1) file_new = f+’N.’+s os.rename(file, file_new) First filenames: coord.1.txt coord.1.png After renaming: coordN.1.txt coordN.1.png 0 solved Renaming files that have specific format like text.* [closed]
Do something like this >>> import os >>> for root, subFolders, files in os.walk(‘/tmp’): … for f in files: … if len(f) < 5: continue … newf = f[:-5]+f[-5].lower()+f[-4:] … print “changing”,f,”to”,newf … but looks like you want character before extension instead of 5 char? in that case why not just split the extension from … Read more
System.IO.File.Move(oldFileName, Path.ChangeExtension(oldFileName, ‘old’)); solved How can I rename .TXT files to .OLD using C#? [closed]
You want to use a replace technique (in whatever language/environment you are using) on your substrings by capturing like this: (\d{2})(\d{2})(\d{2}) *note the curly brackets are for improved efficiency. And replace with: $1.$2.$3 Here is a demo link. Here is a SO page discussing the execution of replacements on nano. 1 solved How to add … Read more