Setting taping the touchpad as left button click in KDE is introduced in this post.
The software package needed:
# yum install kcm_touchpad
A picture that is worth a thousand words:
(In the “Input Devices” of KDE System Settings.)
This change “PM / clk: Fix clock error check in __pm_clk_add()” (commit 3fc3a0b) in Linux kernel is authored by Geert Uytterhoeven <geert+renesas [at] glider.be> on Fri May 8 10:47:43 2015 +0200. Description of “PM / clk: Fix clock error check in __pm_clk_add()” The change “PM / clk: Fix clock error check in __pm_clk_add()” introduces changes…
ECDSA keys are commonly used in various areas like blockchains. OpenSSL is a commonly used tools in Linux for handling signature/encryption/decryption. This post introduces how to generate ECDSA keys using OpenSSL in Linux. Generate keys for K1 secp256k1 elliptic curve We start with K1 (secp256k1) as the example. To generae ECDSA keys using other curves,…
We make mistakes when developing before or after committing in git. We may revert changes and fix our mistake by using git. Revert entire working tree before committing We can return the entire working tree to the last committed state if we mess up the working tree: $ git reset –hard HEAD Revert changes to…
MPlayer has a fully configurable, command-driven control layer which allows you to control MPlayer using keyboard. But which are these shortcuts are not immediately know to users of MPlayer. Below is a list of mostly used MPlayer keyboard control shortcuts. They come from the [[man:1|mplayer|mplayer manual]] where you can find a full list of all…
Cosmos is “Microsoft’s internal data storage/query system for analyzing enormous amounts (as in petabytes) of data”. There is no paper/technical report about Cosmos published yet. I compiled a list of information about Cosmos on the Web as follows. What is Microsoft’s Cosmos service? by Yaron Y. Goland. Microsoft Cosmos: Petabytes perfectly processed perfunctorily by Seth…
Question: how to find the disk where the Linux’s root(/) is on in Bash? The root may be on a LVM volume or on a raw disk. 2 cases: One example: # df -hT | grep /$ /dev/sda4 ext4 48G 32G 14G 71% / For another example: # df -hT | grep /$ /dev/mapper/fedora-root ext4…
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