Jason Mancini wrote:
# zcat backup.bin.gz | wc -c
67,645,849,600
# gzip -l backup.bin.gz
compressed uncompressed ratio uncompressed_name
9,458,450,396 3,221,340,160 -193.6% backup.bin
This is a known limitation of the gzip format, and is documented in the manual:
http://www.gnu.org/software/gzip/manual/gzip.html#Invoking-gzip
"The gzip format represents the input size modulo 2^32, so the uncompressed
size and compression ratio are listed incorrectly for uncompressed files 4
GiB and larger. To work around this problem, you can use the following
command to discover a large uncompressed file’s true size:
zcat file.gz | wc -c"
Best regards,
Antonio.
