After apt-get is downloaded, what is the path where the software is located? ?
/var/cache/apt/archives
The default PATH of ubuntu is
PATH=/home/brightman/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games
The apt-get install installation directory is determined by the maintainer of the package, not the user
$ dpkg -L packagename、
dpkg -L + the name of the package, you can know which files this package contains
System installation software is generally in /usr/share, executable files are in /usr/bin, and configuration files may be installed in /etc.
Documentation is generally in /usr/share
executable /usr/bin
config file/etc
lib file /usr/lib