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Simple DOS command to ignore data line by line after the last backslash

I am creating a batch file to make multiple directories from a list in a text file however after the directory is sometimes given the filename. Is there an easy way to make it ignore all data after the last line \ on the line?

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I would assume that the DOS package is not the right tool for the job because it does not have built-in string manipulation facilities as it would need.

If you have Perl available, you can do something like this:



#!/usr/bin/perl -w

while (<>) {
    s/\\[^\\]*$//; # this removes a the last backslash and anything after it
    mkdir $_;
}
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You can use something like this:

@echo off
set filename="c:\temp\my files\file.txt"
for /f "tokens=*" %i in ("%filename%") do set filename="%~dpi"
echo %filename%


The result will be "c:\temp\my files\"

.

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