codesearch software package provides regular expression search over large bodies of source code, you can install in your Debian 9 (Stretch) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install codesearch
codesearch is installed in your system.
Make ensure the codesearch package were installed using the commands given below,
$ sudo dpkg-query -l | grep codesearch *
You will get with codesearch package name, version, architecture and description in a table
| Distro | Debian 9 stretch |
| Section | Utilities |
| Package | codesearch |
| Version | 0.0~hg20120502-2 |
| Description | regular expression search over large bodies of source code |
| Sub Section | Utils |