I'm looking for equivalent of yum info httpd command under Debian Linux. How do I display information about the installed packages on the command line under Debian or Ubuntu Linux? How do I see the description of a package under Debian or Ubuntu Linux using command line options?
The easiest way to get this information is to use apt-cache or dpkg command to display details about given package-name on the command line. You will see the following information:
=> Package name.
=> Maintainer name and email.
=> Source name.
=> Package version.
=> Package Dependencies.
The syntax is:
dpkg --print-avail packageNameHere
apt-cache show packageNameHere
In this example, show the information of a package called nginx, run:
dpkg --print-avail nginx
apt-cache show nginx
Package: nginx Priority: optional Section: httpd Installed-Size: 856 Maintainer: Jose Parrella <firstname.lastname@example.org> Architecture: amd64 Version: 0.7.67-3+squeeze2 Provides: httpd Depends: lsb-base (>= 3.2-14), libc6 (>= 2.4), libgeoip1 (>= 1.4.7~beta6+dfsg), libpcre3 (>= 7.7), libssl0.9.8 (>= 0.9.8m-1), zlib1g (>= 1:1.1.4) Size: 356178 Description: small, but very powerful and efficient web server and mail proxy Nginx (engine x) is a web server created by Igor Sysoev and kindly provided to the open-source community. This server can be used as standalone HTTP server and as a reverse proxy server before some Apache or another big server to reduce load to backend servers by many concurrent HTTP-sessions. . It can also act as a POP3/IMAP mail proxy with SSL and TLS SNI support. Homepage: http://nginx.net