sudo apt-get install grip
Reading package lists... Done
Building dependency tree... Done
The following extra packages will be installed:
  libcurl3-gnutls
Recommended packages:
  vorbis-tools
The following NEW packages will be installed:
  grip libcurl3-gnutls
0 upgraded, 2 newly installed, 0 to remove and 77 not upgraded.
Need to get 0B/634kB of archives.
After unpacking 1626kB of additional disk space will be used.
Do you want to continue [Y/n]? y
WARNING: The following packages cannot be authenticated!
  libcurl3-gnutls grip
Install these packages without verification [y/N]? y
(Reading database ... dpkg: error processing /var/cache/apt/archives/libcurl3-gnutls_7.15.5-1etch1_i386.deb (--unpack):
 files list file for package `writerscafe' contains empty filename
Errors were encountered while processing:
 /var/cache/apt/archives/libcurl3-gnutls_7.15.5-1etch1_i386.deb
Processing was halted because there were too many errors.
E: Sub-process /usr/bin/dpkg returned an error code (1)