Show installed packages - Ubuntu

The command we need to use is dpkg –get-selections, which will give us a list of all the currently installed packages.
$ dpkg --get-selections
adduser                                         install
alsa-base                                       install
alsa-utils                                      install
apache2                                         install
apache2-mpm-prefork                             install
apache2-utils                                   install
apache2.2-common                                install
apt                                             install
apt-utils                                       install
The full list can be long and unwieldy, so it’s much easier to filter through grep to get results for the exact package you need. For instance, I wanted to see which php packages I had already installed through apt-get:
dpkg --get-selections | grep php
libapache2-mod-php5                             install
php-db                                          install
php-pear                                        install
php-sqlite3                                     install
php5                                            install
php5-cli                                        install
php5-common                                     install
php5-gd                                         install
php5-memcache                                   install
php5-mysql                                      install
php5-sqlite                                     install
php5-sqlite3                                    install
php5-xsl                                        install
For extra credit, you can find the locations of the files within a package from the list by using the dpkg -L command, such as:
dpkg -L php5-gd
/.
/usr
/usr/lib
/usr/lib/php5
/usr/lib/php5/20060613
/usr/lib/php5/20060613/gd.so
/usr/share
/usr/share/doc
/etc
/etc/php5
/etc/php5/conf.d
/etc/php5/conf.d/gd.ini
/usr/share/doc/php5-gd

Comments

Post a Comment

Popular posts from this blog

Alternatives to: "The quick brown fox jumps over the lazy dog."

Alternatives to: "The quick brown fox jumps over the lazy dog." 1. Pack my box with five dozen liquor jugs. 2. Several fabulous dixieland jazz groups played with quick tempo. 3. Back in my quaint garden, jaunty zinnias vie with flaunting phlox. 4. Five or six big jet planes zoomed quickly by the new tower. 5. Exploring the zoo, we saw every kangaroo jump and quite a few carried babies. 6. I quickly explained that many big jobs involve few hazards. 7. Jay Wolf is quite an expert on the bass violin, guitar, dulcimer, ukulele and zither. 8. Expect skilled signwriters to use many jazzy, quaint old alphabets effectively. 9. The wizard quickly jinxed the gnomes before they vaporized.
Read more

Using keys like ALT+TAB in UltraVNC.

Usage - UltraVNC: Remote Support Software, Remote Support tool,Remote Desktop Control, Remote Access Software, PC Remote Control : Pressing ALT or CTRL send ALT/CTRL directly to the VNCServer, as if the user selected "CTRL DOWN/CTRL UP/ALT DOWN/ALT UP" from the system menu. When SCROLL-LOCK is activated, all key combinations (except CTRL ALT DEL) are directly sent to the remote computer: Instead of switching applications on the client side, ALT TAB is sent to the VNCServer. Instead of opening the start menu on the client side, CTRL ESC is sent to the VNCServer. Instead of opening the system menu on the client side, ALT SPACE is sent to the VNCServer. Pressing Break/Pause key toggles Full-Screen mode on or off. Pressing PRINT-Screen key requests a full screen update (same as selecting "Request Screen Refresh" from the system menu) All the above can be disabled by turning the SCROLL-LOCK key off.
Read more

Command-line installation of OpenVPN

OpenVPN’s installer allows for command-line based (silent) installation, but this feature is not actually documented explicitly anywhere. Here’s all I could find – hope this list will help someone in the same situation I was in. The installer allows you to specify is the installation should be “silent” (i.e. no GUI, nothing to click on), to specify custom installation directory (esp. useful if included in another installer, e.g. NSIS, and installing in the same directory as the target app), and components to install. The parameters can be used even when you’re not using the silent installation, to customize behavior of the graphical installer. /S      - silent installation /D=path - specify a custom installation path Note – the /D parameter has to appear last on the command line, and the path may not be inclosed in quotes. The installer simply takes all of the command line left, and uses it as path (thus supporting spaces in the path). To select individual OpenV...
Read more