libclassad5 software package provides HTCondor classads expression language - runtime library, you can install in your Ubuntu 14.04 LTS (Trusty Tahr) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install libclassad5
libclassad5 is installed in your system.
Make ensure the libclassad5 package were installed using the commands given below,
$ sudo dpkg-query -l | grep libclassad5 *
You will get with libclassad5 package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Libraries |
| Package | libclassad5 |
| Version | 8.0.5~dfsg.1-1ubuntu1 |
| Description | HTCondor classads expression language - runtime library |
| Sub Section | libs |