fish software package provides a friendly interactive shell, you can install in your Ubuntu 12.04 LTS (Precise Pangolin) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install fish
fish is installed in your system.
Make ensure the fish package were installed using the commands given below,
$ sudo dpkg-query -l | grep fish *
You will get with fish package name, version, architecture and description in a table
| Distro | Ubuntu 12 04 lts precise pangolin |
| Section | Shells |
| Package | fish |
| Version | 1.23.1-2 |
| Description | a friendly interactive shell |
| Sub Section | Shells |
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