Long character names for files or folders

windows file system


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Long character names for files or folders

Postby RGVhbiBCdWVu » Wed, 29 Apr 2009 03:30:01 GMT

hello everyone,

I have a databackup script that runs every night which basically copies a 
certain folder to a removable 500GB hard drive.  The copied folder has 
roughly 30,000 files in it, however in that whole mess of subfolders, there 
are files that are longer than 40 characters long.  I've just found out that 
the databackup script stops on these files and doesnt continue with the rest 
of the databackup; effectively making it useless.  

Question is, is there a way how I can run a script/program that will search 
for these files that are longer than 40 characters long and have it 
automatically rename it to something shorter?  

You help is much appreciated,

Re: Long character names for files or folders

Postby Pegasus [MVP] » Wed, 29 Apr 2009 04:36:07 GMT

Most Windows programs and tools have a limit of around 260 characters for 
the combined path+file length. If your unnamed backup program baulks at 
anything longer than 40 characters then it's the fault of the backup 
program, not of Windows. Time to look for a different backup tool! 

Re: Long character names for files or folders

Postby RGVhbiBCdWVu » Wed, 29 Apr 2009 06:55:01 GMT

Re: Long character names for files or folders

Postby Pegasus [MVP] » Wed, 29 Apr 2009 07:16:20 GMT


There is nothing wrong with a carefully written batch file for backing up 
files. I do it all the time. Let's have a look at the batch file, and 
include the error message you see when it fails - verbatim, please! I'm 
beginning to suspect that it has nothing to do with the length of the file 

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