oam/knowledge base/linux/dkpg.md

Dpkg

TL;DR

# add an extra architecture
dpkg --add-architecture i386

# list extra architectures
dpkg --print-foreign-architectures

# list available extra architectures
dpkg-architecture --list-known

#list all installed packages of the i386 architecture
dpkg --get-selections | grep i386 | awk '{print $1}'

# remove the i386 architecture
apt-get purge $(dpkg --get-selections | grep --color=never i386 | awk '{print $1}')
dpkg --remove-architecture i386

Further readings

• How to check if dpkg-architecture --list has all the architectures?