ELPA manages packages for Emacs nicely. But, how to upgrade packages installed by ELPA in Emacs? Within Emacs, list all packages by M-x list-packages and it will automatically refresh the archive contents. Then, press U to mark all upgradable packages to be upgraded. Last, press x to perform the new updates. Emacs will then download
Read more
Tag: package management
How to find which package can be installed for a file, like “yum provides”?
Posted onHow to find which package can be installed for a file, like “yum provides”? That is, the package is not installed yet and I do not know the package for a file that I want. The apt-file tool can do the similar things as yum provides. You may need to install it first by sudo
Read more
Finding All Available Versions of a Package in Ubuntu
Posted onHow to find all available versions of a package in Ubuntu? To list available versions of a package: apt-cache showpkg <package-name> For example, to check all versions of thunderbird: $ sudo apt-cache showpkg thunderbird Package: thunderbird Versions: 1:31.1.1+build1-0ubuntu0.14.04.1 (/var/lib/apt/lists/archive.ubuntu.com_ubuntu_dists_trusty-updates_main_binary-amd64_Packages) (/var/lib/apt/lists/security.ubuntu.com_ubuntu_dists_trusty-security_main_binary-amd64_Packages) Description Language: File: /var/lib/apt/lists/archive.ubuntu.com_ubuntu_dists_trusty_main_binary-amd64_Packages MD5: 68ed1001b79d708ad48956a0c129114d Description Language: en File: /var/lib/apt/lists/archive.ubuntu.com_ubuntu_dists_trusty_main_i18n_Translation-en MD5: 68ed1001b79d708ad48956a0c129114d 1:31.0+build1-0ubuntu0.14.04.1 (/var/lib/dpkg/status)
Read more
How to find whether a package is installed on Linux Mint?
Posted onHow to find whether a package is installed on Linux Mint? For example, I would like to check whether ghostscript is installed. Using dpkg: dpkg -l List all available packages (installed and not installed): apt-cache pkgnames
Notes for Beginners of Software Development on Linux
Posted onLinux is a great platform for software development targeting servers or backends. In general, working on Linux is very productive. The problem that beginners on Linux face is the the learning curve is steep at the beginning. But believe me, after you get through the initial green steep learning step as in the figure below
Read more