Installing Zlib Library in Ubuntu Linux
On Ubuntu (18.04 and 20.04), installing zlib reported unable to locate package zlib: $ sudo apt install zlib Reading package lists... Done Building dependency tree Reading state information... Done E:...
View ArticleHow to install GNOME 3 in Ubuntu MATE 18.04?
How to install the GNOME 3 (gnome-shell) desktop environment in Ubuntu MATE 18.04? To install gnome3 to Ubuntu, install these packages sudo apt install gnome-session gdm3 ubuntu-desktop During...
View ArticleHow to change the logo shown during booting in Ubuntu?
How to change the logo shown during booting in Ubuntu? I originally installed Ubuntu MATE 18.04. But I am using GNOME 3 now by replacing the DE. But the log shown during booting is still Ubuntu MATE’s....
View ArticleHow to fix the huge emoji icons in Unbuntu 18.04 for Thunderbird?
In Ubuntu 18.04, Thunderbird shows huge emoji icons in the email list. The emoji covers other text and is several lines higher and wider than other charactors. How to solve it? This is likely caused by...
View ArticleHow to enable user themes in Ubuntu 18.04?
The way for Ubuntu 17 to installing the gnome-shell-extensions package does not work any more for Ubuntu 18.04. How to enable user themes in Ubuntu 18.04? The updated gnome-shell-extensions package...
View ArticleHow to synchronize Google Drive and Google Docs files in Ubuntu/Debian/Mint...
Google Drive is a nice cloud storage service. It provides a suite of nice online document spreadsheet and slide editors Google Docs, Google Sheets and Google Slides. The collaborative editing and full...
View ArticleHow to do screen recording on Wayland in Linux?
How to do screen recording on Wayland in Linux? Many screen recorders do not work on the new Wayland. Using Green Recorder You may try Green Recorder which supports Wayland. Note: Green Recorder is no...
View ArticleHow to write file content with sudo in Vim?
Vim opens file even if the user does bot have write permission to the file. But after revision, how to write file content with sudo in Vim if Vim reports no permission to write the file. Use this...
View ArticleHow to write to remote side with sudo in rsync?
Here is the case, the user can not write directly to the remote side’s directory, while the user can sudo on the remote side and write the directory with sudo. How to write to remote side with sudo in...
View ArticleHow to Statically Link OCaml Programs
Static linking is preferred for some cases although it has its own various problems. Static building/linking is not always possible for some languages on some platform. For OCaml, the answer to this...
View ArticleHow to Install Wine 32-bit on CentOS 8
Since version 7, RHEL and CentOS only have 64 bit versions. For some reasons, it’s better to run many Windows applications under 32 bit wine. Like How to Install Wine 32-bit on CentOS 7, this post...
View ArticleHow to Install Go 1.13.x on Ubuntu 18.04
In Ubuntu 18.04 LTS, the default Go lang version is 1.10. For compatibility reason, the Ubuntu LTS will usually keep the major release version numbers for packages. However, many applications, such as...
View ArticleHow to Install Hyperledger Fabric 2.0 in Ubuntu 18.04
Hyperledger Fabric is a consortium blockchain system. It’s performance is relatively good and its modular architecture enables it to be usable in many scenarios. Hyperledger Fabric itself has rich...
View ArticleMake Grub2 Boot Older Kernel Version in Ubuntu 20.04
In a Linux system, we may have multiple kernels installed. Usually, it is the latest kernel configured to be the default one the system boot loader will use during automatic boot if there is no manual...
View ArticleChange Another Process’ Environment Variables in Linux
Each process has its environment variables in Linux. But is it possible to change another process’ environment variable from another process in Linux? If it is possible to do so, how to do it? There is...
View ArticleCompress PNG Images on Linux
PNG images already use DEFLATE data compression algorithm involving a combination of LZ77 and Huffman coding. But the PNG images can be further compressed by removing non-important metadata or using...
View ArticleLinux User Group Management and Operations
Linux allows more than one users to log into the system to run processes/programs at the same time. In order to make this multi-user system work properly, Linux provides ways to isolate and protect...
View ArticleInstall R and RStudio Server in Ubuntu Linux 20.04
R is a language and environment for statistical computing and graphics, providing a wide variety of statistical and graphical techniques. The R environment is open source software under GPL. R has rich...
View ArticleHow To Install R and RStudio Desktop in Ubuntu Linux 20.04
We ever discussed How To Install R and RStudio Server in Ubuntu Linux 20.04. If the purpose is to install a local RStudio IDE instead of a remote RStudio Server, we can install RStudio Desktop. In this...
View Article.docx/.doc to .odt File Conversion in Command Line in Linux
Word .docx and .doc files are common for documents commonly generated by MS Word software. We would like to convert them to the more open ODF Open Document .odt files for various cases. This can be...
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