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How to know the Original size of the file without unzipping the File?

 
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# 1  
Old 01-03-2012
How to know the Original size of the file without unzipping the File?
Hi,

I don't have enough space on my Unix Box. So, I can't unzip the file and check the size of the file. So, I need to know, Is there any command, to check, how much the unzipped file takes after unzipping. Thanks in Advance.
# 2  
Old 01-03-2012
You can try uncompressing it to stdout and piping it to wc to get a byte count.

Code:
gzip -dc file.gz|wc

This User Gave Thanks to agama For This Post:
Siva Sankar
# 3  
Old 01-03-2012
try gzip -l file.gz

From man gzip:

Quote:
-l --list
For each compressed file, list the following fields:

compressed size: size of the compressed file
uncompressed size: size of the uncompressed file
ratio: compression ratio (0.0% if unknown)
uncompressed_name: name of the uncompressed file

The uncompressed size is given as -1 for files not in gzip format, such as compressed .Z files. To get the uncompressed size for such a file, you can
use:

zcat file.Z | wc -c

In combination with the --verbose option, the following fields are also displayed:

method: compression method
crc: the 32-bit CRC of the uncompressed data
date & time: time stamp for the uncompressed file

The compression methods currently supported are deflate, compress, lzh (SCO compress -H) and pack. The crc is given as ffffffff for a file not in
gzip format.
This User Gave Thanks to dude2cool For This Post:
agama
# 4  
Old 01-03-2012
Quote:
Originally Posted by dude2cool
try gzip -l file.gz
I had it in my brain that -t did that, but it (obviously) doesn't. Should have read the man page Smilie
# 5  
Old 01-04-2012
MySQL
Thanks a lot aagma.. its working...Smilie
 
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