gunzip unknown suffix -- ignored

schneidz · 04-19-2012, 01:38 PM

hi, i have about 100 gzipped files that are named like vendor-837-12-04-20-14:44:37.253.

i am trying to gunzip all of them but i keep getting errors like:
gunzip: vendor-837-12-04-20-14:44:37.253: unknown suffix -- ignored

when i 'cp vendor-837-12-04-20-14:44:37.253 vendor-837-12-04-20-14:44:37.253.gz; gunzip vendor-837-12-04-20-14:44:37.253.gz' it behaves correctly but i'll get a hand-cramp from doing that more than 100 times.

since unix uses the magic number to know the file-type, isnt the filename irrelevant ?

thanks,

Spatior · 04-19-2012, 01:48 PM

Hello

My advise is to escape the - and the : characters, so your instruction end like:

Code:

gunzip [OPTIONS] vendor\-837\-12\-04\-20\-14\:44\:37\.253

Other whise the CLI try to interprate the metacharacters

Regards

schneidz · 04-19-2012, 01:52 PM

^ thanks for the advice but i am having the same problem like so:
gunzip: vendor.837: unknown suffix -- ignored

but gunzip vendor.837.gz works perfectly.

how to make it so gunzip will take any filename (seems kinda' windows-like to expect an extension on every filename) ?

repo · 04-19-2012, 02:03 PM

try to use
zcat

Quote:

zcat will uncompress
files that have the correct magic number whether they have a
.gz suffix or not.

Kind regards

unSpawn · 04-19-2012, 02:10 PM

...or use "--force"

schneidz · 04-19-2012, 02:10 PM

Quote:

Originally Posted by unSpawn

...or use "--force"

good idea but same problem as before.

(hans shot first

)

schneidz · 04-19-2012, 02:12 PM

Quote:

Originally Posted by repo

try to use
zcat

Kind regards

thanks, i think i am getting closer. now i am getting this error:

Code:

zcat vendor.837
vendor.837.Z: A file or directory in the path name does not exist.

Spatior · 04-19-2012, 04:43 PM

ok, sorry now i get the problem

look in the man of your gunzip for the -S option, if it exist try the command:

Code:

gunzip -S "" vendor-837-12-04-20-14:44:37.253

HTH

schneidz · 04-20-2012, 07:25 AM

Quote:

Originally Posted by Spatior

ok, sorry now i get the problem

look in the man of your gunzip for the -S option, if it exist try the command:

Code:

gunzip -S "" vendor-837-12-04-20-14:44:37.253

HTH

thanks, getting even closer, i am now getting this error
gunzip: vendor-837-12-04-20-14:44:37.253: cannot decompress onto itself

seems like some limitation of gunzip that i will need to handle in some sort of for loop.

thanks alot.

edit: i got creative and hacked something together that worx:

Code:

zgrep -E "(.|^$)" vendor-837-12-04-20-14:44:37.253 > vendor-837-12-04-20-14:44:37.253.txt

also, i just discovered the obvious:

Code:

cat vendor-837-12-04-20-14:44:37.253 | gunzip > vendor-837-12-04-20-14:44:37.253.txt