====== Ubuntu - dpkg - Hold a package ======

<WRAP info>
**NOTE:**  Package must be installed to put on hold.

  * Otherwise an error will be returned as follows:

<code>
dpkg: warning: package not in status nor available database at line 1: PACKAGE_NAME_HERE
dpkg: warning: found unknown packages; this might mean the available database
is outdated, and needs to be updated through a frontend method;
please see the FAQ <https://wiki.debian.org/Teams/Dpkg/FAQ>
</code>

</WRAP>

----

===== Put a package on hold =====

<code bash>
echo "[package name] hold" | sudo dpkg --set-selections
</code>

----

===== Example =====

Put a bash package on hold.
<code bash>
echo "bash hold" | sudo dpkg --set-selections
</code>

----

===== Get the status of the packages =====

<code bash>
dpkg --get-selections [package name]
</code>

<WRAP info>
**NOTE:**  Use the **grep** command to filter for a single package named bash.

<code bash>
dpkg --get-selections | grep bash
</code>

</WRAP>

----

===== Delete the hold =====

<code bash>
echo "[package name] install" | sudo dpkg --set-selections
</code>

----

===== Example =====

<code bash>
echo "bash install" | sudo dpkg --set-selections
</code>