摘要：Apt-GetTheapt-getcommand is a powerful command-line tool used to work with Ubuntu'sAdvanced Packaging Tool(APT) performing such functions as installation of new software packages, upgrade of existing software packages, updating of the package list index, and even upgrading the entire Ubuntu syst 阅读全文

摘要：dpkgTo list all packages installed on the system, from a terminal prompt enter:dpkg -lDepending on the amount of packages on your system, this can generate a large amount of output. Pipe the output throughgrepto see if a specific package is installed:dpkg -l | grep apache2To list the files installed 阅读全文