gistfile1.txt

root@ip-10-122-99-192:/var/lib/cloud/data/scripts# apt-get install git-core
Reading package lists... Done
Building dependency tree       
Reading state information... Done
git-core is already the newest version.
The following extra packages will be installed:
  git
Suggested packages:
  git-doc git-el git-arch git-cvs git-svn git-email git-daemon-run git-gui gitk gitweb
The following packages will be upgraded:
  git
1 upgraded, 0 newly installed, 0 to remove and 331 not upgraded.
20 not fully installed or removed.
Need to get 0B/4,658kB of archives.
After this operation, 10.9MB of additional disk space will be used.
Do you want to continue [Y/n]? y
(Reading database ... 
dpkg: warning: files list file for package `git' missing, assuming package has no files currently installed.
(Reading database ... 27084 files and directories currently installed.)
Preparing to replace git 1:1.7.4.1-3 (using .../git_1%3a1.7.4.1-3_amd64.deb) ...
/var/lib/dpkg/tmp.ci/preinst: 12: dpkg-maintscript-helper: not found
dpkg: error processing /var/cache/apt/archives/git_1%3a1.7.4.1-3_amd64.deb (--unpack):
 subprocess new pre-installation script returned error exit status 127
/var/lib/dpkg/tmp.ci/postrm: 14: dpkg-maintscript-helper: not found
dpkg: error while cleaning up:
 subprocess new post-removal script returned error exit status 127
Errors were encountered while processing:
 /var/cache/apt/archives/git_1%3a1.7.4.1-3_amd64.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)