Extracting split .tar files on linux, that separately need to be decrypted

Question

i am trying to extract and decrypt 23 .tar files named as per below:

dev_flash_000.tar.aa.2010_07_29_170013

There are 23 of them, and each needs to be decrypted with an app called dePKG before it is extracted.

I tried this bash script:

for i in `ls dev_flash*`; do ./depkg $i $i.tar ; tar -xvf ./$i.tar ; rm $i.tar; done

and get this error for all 23 files:

read 0x800 bytes of pkg
pkg data @ 340 with size 3ec
not inflated, writing 1004 bytes
tar: This does not look like a tar archive
tar: Skipping to next header
tar: Exiting with failure status due to previous errors

I just want to save time :D

user562374 user562374 · Accepted Answer · 2011-01-06T19:47:23

You should not use ls in a ` ` context — see http://porkmail.org/era/unix/award.html#ls . FWIW:

for i in dev_flash*`; do
    ./depkg "$i" -;
done | tar -xv;

Check with your depkg manual pages on how to make it output to stdout, or if it does not, use /dev/stdout as a file. Not only does that save you the temporaries, but running a single tar command on the concatenation of the decrypted contents also works properly when the original archive has been split at arbitrary positions.

Extracting split .tar files on linux, that separately need to be decrypted

1 Answers