gistfile1.txt

zsh % bzip2 -d ruby-2.0.0-p195.tar.bz2                                                                                          [2013/Aug/06(Tue) 20:55:30 JST][shyouhei][X121e][pts/7][screen 0]

bzip2: Data integrity error when decompressing.
        Input file = ruby-2.0.0-p195.tar.bz2, output file = ruby-2.0.0-p195.tar

It is possible that the compressed file(s) have become corrupted.
You can use the -tvv option to test integrity of such files.

You can use the `bzip2recover' program to attempt to recover
data from undamaged sections of corrupted files.

bzip2: Deleting output file ruby-2.0.0-p195.tar, if it exists.
zsh: exit 2     bzip2 -d ruby-2.0.0-p195.tar.bz2