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Command similar to "touch" for modify File size

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Top Forums UNIX for Advanced & Expert Users Command similar to "touch" for modify File size
# 1  
Old 11-14-2007
MySQL Command similar to "touch" for modify File size
Hi All,
I'm trying to find a command like similar to "touch" which would let me change the file size property.
For ex: I have a file of size 1MB using the command i would like to set/update the size something like 1KB.
Is it possible? Is there any such command which would accomplish this task for me? Kindly suggest.

Regards,
Harsha
# 2  
Old 11-14-2007
if you are not concerned about the contents of file, overwrite the file (of 1 MB in your case) with a different file having the required size (1KB in your case)
# 3  
Old 11-14-2007
Exactly, Yogesh.

To expand a bit on this: if you want to keep the inode number, but don't care about the content use dd:

dd if=/dev/zero of=/your/file bs=<nr of bytes the file should have> count=1

bakunin
# 4  
Old 11-15-2007
this helps to change the size of a file to 1 KB:
Code:
dd if=/dev/zero of=hollow_and_empty bs=1024 count=1

dd --help for more info
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