Ubuntu installation software command

////////////////////////////////////////////////////////////////////// Get root right Run terminal Su Root ///////////////////////////////////////////////////////////////////// Frequently used apt command parameters: Apt-cache Search Package Package Apt-cache Show package get information about the package, such as description, size, version, etc. sudo apt-get install package installation package sudo apt-get Install package--Reinstall reinstall package sudo apt-get-f Install repair Install "-F =--fix-missing" sudo apt-get Remove Package Delete Package sudo apt-get Remove Package--purge delete packages, including deleting profiles, etc. sudo apt-get update source sudo apt-get upgrade update installed packages sudo apt-get Dist-upgrade upgrade system sudo apt-get dselect-upgrade use Dselect upgrade Apt-cache depends package understand usage dependencies Apt-cache Rdepends package is to see which packages are dependent on the package sudo apt-get BUILD-DEP Package Installation-related compilation environment Apt-get Source package Download the source code for this package sudo apt-get clean && sudo apt-get autoclean cleanup unwanted packages sudo apt-get check checks for corrupted dependencies //////////////////////////////////////////////////////////////////////// A useful cleanup command under Ubuntu 2010-04-30 13:45 System Garbage Cleanup sudo apt-get autoclean//cleaning up older versions of the software cache sudo apt-get clean//Clear All software cache sudo apt-get autoremove//delete orphaned software no longer used by the system Unlike the Windows system, Ubuntu Linux does not produce useless junk files, but in the upgrade cache, Ubuntu Linux does not automatically delete these files, today is to say these garbage file cleanup methods. 1, a very useful cleanup command: sudo apt-get AutoClean sudo apt-get clean sudo apt-get autoremove These three commands primarily clean up the upgrade cache and the unwanted packets. 2, clean up the cached files of opera Firefox: LS ~/.opera/cache4 LS ~/.mozilla/firefox/*.default/cache 3, clean Linux under the orphaned packets: We can use the graphic interface: Gtkorphan sudo apt-get install gtkorphan-y Terminal command We can use: Deborphan sudo apt-get install deborphan-y 4, Uninstall: Tracker This thing generally I just install Ubuntu will be the first delete tracker he will not only produce a large number of cache files, but also affect the boot speed. So it's OK to delete it in the new profit. 5, remove the excess kernel: do not delete the wrong oh, remember. Open Terminal Knock command: dpkg--get-selections|grep Linux There is the image of the kernel file To delete old kernel files: sudo apt-get remove kernel filename (for example: Linux-image-2.6.27-2-generic) The kernel deletes, frees up space, should be able to release 130-140m space. Finally, don't forget to look at the current kernel: uname-a Appendix: Temporary files directory for package management: Package in /var/cache/apt/archives Did not download the finished in /var/cache/apt/archives/partial After using Ubuntu for a while, you'll find that there are a lot of kernels installed in the system because of automatic upgrades. Like me, I actually installed the following so many, this caused a long launch list. You must erase some of the unused. The first is to use the following command to list all installed cores, and the following table, with image, is the kernel file. Select the package to unload from, and use Apt-get to uninstall $ dpkg--get-selections|grep Linux Libselinux1 Install linux-386 Install linux-image-2.6.15-23-386 Install linux-image-2.6.15-27-386 Install linux-image-2.6.15-27-686 Install linux-image-2.6.15-28-386 Install linux-image-2.6.15-28-686 deinstall linux-image-386 Install Linux-kernel-headers Install linux-restricted-modules-2.6.15-23-386 Install linux-restricted-modules-2.6.15-27-386 Install linux-restricted-modules-2.6.15-27-686 Install linux-restricted-modules-2.6.15-28-386 Install linux-restricted-modules-2.6.15-28-686 deinstall linux-restricted-modules-386 Install Linux-restricted-modules-common Install Linux-sound-base Install Util-linux Install The specific uninstall method is sudo apt-get remove linux-image-2.6.15-23-386 This enables the automatic deletion of kernel files, as well as freeing up disk space. In addition, a command should be recorded. Uname-a Use this command to view the kernel used by the current system.