Ubuntu에서 어떤 종류의 package가 있는지 검사하는 방법

리눅스에서 어떤 프로그램(package)가 있는지 검사할때 아래와 같이 apt-cache 명령을 쓴다

$apt-cache search <key word>

예를 들어 crossbuild-essential-armhf는 아는데 다른 종류의 크로스빌드툴은 어떤게 있는지 확인하고자 할때 다음과 같이 검색할 수 있다.

@ubuntu:~$ apt-cache search build-essential

build-essential - Informational list of build-essential packages
crossbuild-essential-arm64 - Informational list of cross-build-essential packages
crossbuild-essential-armhf - Informational list of cross-build-essential packages
crossbuild-essential-powerpc - Informational list of cross-build-essential packages
crossbuild-essential-ppc64el - Informational list of cross-build-essential packages
devscripts - scripts to make the life of a Debian Package maintainer easier
crossbuild-essential-armel - Informational list of cross-build-essential packages
crossbuild-essential-s390x - Informational list of cross-build-essential packages
dh-buildinfo - Debhelper addon to track package versions used to build a package
sbuild - Tool for building Debian binary packages from Debian sources