Ceci dit quand on fait un simple
apt search <paquet>
le résultat donne en bout de ligne s’il est installé:
~# apt search haproxy
En train de trier... Fait
Recherche en texte intégral... Fait
go-mmproxy/stable 2.1-1+b6 amd64
Golang implementation of mmproxy
golang-github-armon-go-proxyproto-dev/stable 0.0~git20190211.68259f7-2 all
Golang package to handle HAProxy Proxy Protocol
golang-github-pires-go-proxyproto-dev/stable 0.4.2-3 all
golang library of PROXY protocol for v1 and v2
haproxy/stable,now 2.6.12-1 amd64 [installé]
fast and reliable load balancing reverse proxy
haproxy-doc/stable 2.6.12-1 all
fast and reliable load balancing reverse proxy (HTML documentation)
haproxy-log-analysis/stable,now 2.0~b0-4 all **[installé]**
analyse the HTTP logs generated by HAProxy
haproxyctl/now 1.4.3-1 all **[installé, local]**
Utility to manage HAProxy
hatop/stable,now 0.8.2-1 all **[installé]**
client interactif en ncurses pour haproxy
libghc-io-streams-haproxy-dev/stable 1.0.1.0-4+b2 amd64
HAProxy protocol 1.5 support for io-streams
libghc-io-streams-haproxy-doc/stable 1.0.1.0-4 all
HAProxy protocol 1.5 support for io-streams; documentation
libghc-io-streams-haproxy-prof/stable 1.0.1.0-4+b2 amd64
HAProxy protocol 1.5 support for io-streams; profiling libraries
libprotocol-websocket-perl/stable 0.26-3 all
Perl library that implements WebSocket protocol
monitoring-plugins-contrib/stable 42.20230308 amd64
Plugins for nagios compatible monitoring systems
postgresql-15-bgw-replstatus/stable 1.0.6-3+b1 amd64
report whether PostgreSQL node is master or standby
prometheus-haproxy-exporter/stable 0.14.0-1+b5 amd64
HAProxy exporter for Prometheus
puppet-module-puppetlabs-haproxy/stable 2.1.0-5 all
Puppet module for HAProxy
python3-haproxy-log-analysis/stable,now 2.0~b0-4 all **[installé]**
generate aggregate statistics from HAProxy HTTP logs (Python 3)
vim-haproxy/stable,now 2.6.12-1 all **[installé, automatique]**
coloration syntaxique pour les fichiers de configuration d’HAProxy
en, prime on sait si l’installation est automatique ou locale