Warning, packagekitd and snapd Eat Bandwidth!


Now I know for sure why each distro I ran eats my bandwidth extremely a lot without my permission, that’s because of PackageKit’s packagekitd daemon doing automatic updates in stealth. Not only that, but also Snappy’s snapd daemon eats my bandwidth without my permission too. Those two packagekitd and snapd are serious problems for limitedly-bandwidth users! These happened on neon, my favorite KDE distro, and also Ubuntu, Kubuntu, even openSUSE, and even Fedora. Tonight I do some searching and I finally understand packagekitd action is a part of GNOME Software or KDE Discover automatic update. Continue reading


First Time Running GNOME Builder


  • sudo dnf install gettext-common-devel gettext-devel autoconf-archive gtk3-devel gcc-c++
  • Fedora 26
  • I encountered errors while building pre-build samples such as ‘AX_GENERATE_CHANGELOG: command not found’
  • GNOME Builder can download big amount of data (Flatpak library things) without my permission by default and I dislike this, I value my internet bandwidth more than this
  • I have experiences in Qt Creator previously (I like it so much), so GNOME Builder is a new thing for me
  • Clean interface, easy to understand, no excessive number of buttons, build buttons are straightforwardly placed on center (this is good)
  • Build output are placed in a way that is simple and understandable, easier to copy the messages to the internet

I really like the licenses selection on new project screen. This eases new programmers to get accustomed to free software development. Good job, GNOME Developers!

Licensed under CC BY-SA 3.0.

List of awk Resources


In my journey to make an examples-based user-friendly awk the series (as a pair of sed the series). It’s because finding user-friendly practical examples of awk is difficult.

http://www.grymoire.com/Unix/Awk.html (my favorite so far)



http://www.bolthole.com/AWK.html (Part 1-6)



https://www.ibm.com/developerworks/library/l-awk1 (Part 1-3, Daniel Robbins)

http://www.folkstalk.com/2011/12/good-examples-of-awk-command-in-unix.html (Folkstalk was my only inspiration to write sed the series; Folkstalk successfully convinced me that trying sed is easy)

http://www.pement.org/awk/awk1line.txt (my first time was sedoneliners but this one is very similar)


http://www.catonmat.net/blog/awk-one-liners-explained-part-one (Part 1-3; I just found tonight and it’s very good)

https://www.eriwen.com/tools/awk-is-a-beautiful-tool (this article inspired catonmat’s one)