Error:

[[email protected] ~]$sudo apt-get autoremove
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following packages will be REMOVED:
  xaw3dg
0 upgraded, 0 newly installed, 1 to remove and 123 not upgraded.
After this operation, 460 kB disk space will be freed.
Do you want to continue [Y/n]? y
dpkg: warning: 'ldconfig' not found in PATH or not executable.
dpkg: warning: 'start-stop-daemon' not found in PATH or not executable.
dpkg: warning: 'update-rc.d' not found in PATH or not executable.
dpkg: 3 expected programs not found in PATH or not executable.
NB: root's PATH should usually contain /usr/local/sbin, /usr/sbin and /sbin.
E: Sub-process /usr/bin/dpkg returned an error code (2)

Try fix:

Edit /etc/sudoers with visudo and add the line:

Defaults        env_reset
Defaults    secure_path="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"

The whole file now looks like this for me:

# /etc/sudoers
#
# This file MUST be edited with the 'visudo' command as root.
#
# See the man page for details on how to write a sudoers file.
#

Defaults        env_reset
Defaults    secure_path="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"

# Host alias specification

# User alias specification

# Cmnd alias specification

# User privilege specification
root    ALL=(ALL) ALL

# Allow members of group sudo to execute any command
# (Note that later entries override this, so you might need to move
# it further down)
%sudo ALL=(ALL) ALL
#
#includedir /etc/sudoers.d

droidzone ALL=(ALL) ALL

 

Trying the command which failed earlier:

[[email protected] ~]$sudo apt-get install emacs

Reading package lists... Done

Building dependency tree

Reading state information... Done

emacs is already the newest version.

The following package was automatically installed and is no longer required:

  xaw3dg

Use 'apt-get autoremove' to remove them.

0 upgraded, 0 newly installed, 0 to remove and 122 not upgraded.[/code]

It now works!