Binary package “squid-purge” in ubuntu bionic

Full featured Web Proxy cache (HTTP proxy) - control utility

 Squid is a high-performance proxy caching server for web clients, supporting
 FTP, gopher, ICY and HTTP data objects.
 .
 Squid version 3 is a major rewrite of Squid in C++ and introduces a number of
 new features including ICAP and ESI support.
 .
 This package contains a small utility that can be used to manage the disk cache
 from the command line.