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how to empty a file with DOS shell or Perl

Posted on 2009-07-04
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Last Modified: 2012-05-07
In Unix, empty a file with
touch file.txt
or
> file.txt
In DOS or Perl, is anything similar I can use? For example,
07/04/2009  06:20 PM             2,945 file.txt
Want it to be
07/04/2009  06:22 PM             0 file.txt
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Question by:jl66
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5 Comments
 
LVL 9

Assisted Solution

by:ghostdog74
ghostdog74 earned 120 total points
ID: 24778910
perldoc -f truncate.

please read the Perl documentation, perldoc perlopentut (as well as others) for more info.
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LVL 84

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by:ozo
ozo earned 760 total points
ID: 24778922
perl -e1 > file.txt
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LVL 10

Accepted Solution

by:
jfromanski earned 800 total points
ID: 24778983
in DOS
ECHO ON > file.txt
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LVL 48

Assisted Solution

by:Tintin
Tintin earned 320 total points
ID: 24778984
touch file.txt

does not empty a file.

By DOS, I'm assuming you mean Windows command shell.  You can do

TYPE >file.txt

it will give you an error, but it will empty the file.

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LVL 70

Expert Comment

by:Qlemo
ID: 24779190
The traditional DOS way is
copy nul file.txt

No error, no contents.
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