rename files with python - regex
I am wanting to rename 1k files using开发者_如何学Go python. they are all in the format somejunkDATE.doc
basically, I would like to delete all the junk, and only leave the date. I am unsure how to match this for all files in a directory.
thanks
If your date format is the same throughout, just use slicing
>>> file="someJunk20101022.doc"
>>> file[-12:]
'20101022.doc'
>>> import os
>>> os.rename(file, file[-12:]
If you want to check if the numbers are valid dates, pass file[-12:-3]
to time
or datetime
module to check.
Say your files are all in a directory (no sub directories)
import os
import glob
import datetime,time #as required
os.chdir("/mypath")
for files in glob.glob("*.doc"):
newfilename = files[-12:]
# here to check date if desired
try:
os.rename(files,newfilename)
except OSError,e:
print e
else: print "ok"
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