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renamentfsfilenamesext3fat32

Command to truncate all filenames at 255 characters

An NTFS directory is open in a bash shell. what command will recursively truncate all filenames in a directory to the 255 character limit required for ext3?

Solution

  • If you have access to a Windows shell, you can use:

    @echo off
setlocal EnableDelayedExpansion

REM  loop over all files in the cwd
for /f %%a in ('dir /a-d /b') do (
   REM  store this filename in a variable so we can do substringing
   set ThisFileName=%%a
   REM  now take a substring
   set ThisShortFileName=!ThisFileName:~0,255!
   REM  finally, the rename:
   echo ren %%a !ThisShortFileName!
)


:EOF
endlocal

    (Note: I have added an echo before the rename command just so you can visually verify that it works before actually running it. Works on my box.)

    I'm sure somebody who's on a *nix box right now could make a similar script for bash, but I'm stuck in Windows world :)

    Good luck!