vim: copy to clibpard

Add this to ~.vimrc, for ctrl+c shortuct vnoremap :w !xclip -i -sel c

Bash: reset bash conosole

tput reset

PulseAudio: Stream sound from home to work computer over ssh and vnc

1. At work use papref to "Enable network access to local sound devices"and restart computer.

2. Copy pulse cookie from work to home: ~/.config/pulse/cookie so that work and home computer share same secret (cookie).

3. At work start: sudo start-pulseaudio-x11

4. At work open reverse tunnel for pulseadio: ssh -X -R 9998:localhost:4713 home

5. At work use vnc to connect to home.

6. Once connected using vnc to home, start firefox (for example) at home computer using: PULSE_SERVER=localhost:9998 firefox

The instructions are based on this: http://psung.blogspot.com/2011/09/network-audio-with-pulseaudio-made.html

Atom: Change command-palette:toggle keybinding

'atom-text-editor:not([mini])':
'ctrl-shift-:': 'command-palette:toggle'

Arch: System freezes when coping large files from usb

Add the following two lines to /etc/sysctl.d/99-sysctl.conf (create if not exists)
vm.dirty_background_ratio=1 vm.dirty_ratio=2
vm.vfs_cache_pressure = 50

To apply use sudo sysctl -p /etc/sysctl.d/99-sysctl.conf or restart.

Arch: Python 3.6 rpc/rpc.h missing

The solution was to manually specify where `rpc/rpc.h` was for configuration: CPPFLAGS="-I/usr/include/tirpc" ./configure --prefix=/opt/python362 --enable-shared -I/usr/include/tirpc

Qt Creator: Set number of threads in Kit for make

MAKEFLAGS=-j3

youtube-dl: download mp3 and skip on failure

youtube-dl --extract-audio --audio-format mp3 -i PLAYLIST_URL_OR_VIDEO_LINK

Docker: Install Amazon Linux for AWS lambda development

docker run -ti -v ~/mylambdapackage:/mylambdapackage amazonlinux:2017.03.1.20170812

From: https://medium.com/@samme/setting-up-python-3-6-aws-lambda-deployment-package-with-numpy-scipy-pillow-and-scikit-image-de488b2afca6

MATLAB: vision.ShapeInserter crashes in Arch Linux

Seems its same problem as here: https://au.mathworks.com/matlabcentral/answers/364727-why-does-matlab-crash-on-linux-fedora-26-with-a-segmentation-violation-r2017b-or-later#answer_289066

Solution was to remove libfreetype files from /opt/MATLAB/R2016a/bin/glnxa64

sudo mv libfreetype* exclude/

Arch xfonts 75 and 100

sudo pacman -S xorg-fonts-75dpi xorg-fonts-100dpi

Arch Linux: Krusader no bookmark menager

sudo pacman -S keditbookmarks

rsync: make a backup

Example:
rsync -avh -R --info=progress2 --delete /home/source/folder /run/media/backup/folder

rsync: copy files over ssh with non-default port

rsync -azvh -e 'ssh -p 22222' ./source_folder user@destination_ip:/destination/folder/name

Setting default terminal in Nemo

gsettings set org.cinnamon.desktop.default-applications.terminal exec terminal

ffmpeg: Extract audio to mp3 from multiple mp4 video files

for i in *.mp4; do ffmpeg -i "$i" -q:a 0 -map a "$(basename "$i" .mp4)".mp3 ; done

Linux: Download audo only from twitch (including live stream)

Show available video formats:
youtube-dl --list-formats twitch_url_to_video
Download only audio:
youtube-dl -f audio_only twitch_url_to_video

Manjaro: Remove steam and microsoft office

sudo pacman -Rd steam-devices steam-manjaro ms-office-online

Cmake: compile using clang instead of gcc

export CC=/usr/bin/clang
export CXX=/usr/bin/clang++
cmake ..

ssh config

Example
# contents of $HOME/.ssh/config
Host dev
HostName dev.example.com
Port 22000
User fooey

From: https://nerderati.com/2011/03/17/simplify-your-life-with-an-ssh-config-file/

vncviewer: Increase compression levels and reduce bandwitch

vncviewer -QualityLevel=7 -FullColor=0 -LowColorLevel=2 -CompressLevel=3 :3

Chromium: disable restore pages script

i3: add rofi key $mod+d

Edit .config/i3/config:
bindsym $mod+d exec "rofi -combi-modi window,drun -show combi"

Manjaro: CUPS stopped working after upgrade to samba 4.8

This worked: https://bbs.archlinux.org/viewtopic.php?pid=1784907#p1784907

Search for a string in txt file in all sub-directories

find dir/ -name *.txt -type f -exec grep -H 'string' {} +

Arch: List of recently installed and upgraded packages

cat /var/log/pacman.log | grep -i upgraded cat /var/log/pacman.log | grep -i installed

Tilix: Arch config settings file location

The config parameters are stored in dconf. Install `dconf-editor` from aur to edit them
yaourt -S dconf-editor
In the dconf-editor search for "Tilix" to find its settings, or go to /com/gexperts/Tilix

Start MATLAB in Linux termianal

alias mat="/opt/MATLAB/R2016a/bin/matlab -softwareopengl -nodesktop -nosplash"

Lowess smooth in logistic regression using R based on Applied Logistic Regression, 3th ed, HOSMER

To to determine linearity in the logit for a continuous variable, one can use lowess smoothed scatterplot as described in Applied Logistic Regression, 3rd Edition, in chapter 4.2.1 Methods to Examine the Scale of a Continuous Covariate in the Logit.

In the book this is illustrated using Scale_Example data from the book and STATA. I dont have stata, but this can be replicated with a good agreement in R.

For this, I will use logitloess function described here.



The data sets used in the book can be obtained here: http://wiley.mpstechnologies.com/wiley/BOBContent/searchLPBobContent.do # read in Scale_Example.txt that contains data for the example
mydata = read.table("~/Applied_Logistic_Regression_by_Hosmer_Lemeshow_3th_ed_2013/Scale Example/Scale_Example.txt")

# seperate data into x and y
y=mydata[,1]
x=mydata[,2]

# plot lowess graph
logitloess(x,y)

The resulting plot is very similar to the one provided in the book (Figure 4.1). Its not exactly same, but this could be due to differences in the implementation of the logitloess methods between R and STATA. Nevertheless, the conclusions from the plot obtained in R are same as those in the book.

My .vimrc vim example

SublimeText3: Gcc build system and termiantor

create new build system subl3 ~/.config/sublime-text-3/Packages/User/gcc.sublime-build with the contents of { "shell_cmd": "g++ \"${file}\" -o \"${file_path}/${file_base_name}\"", "file_regex": "^(..[^:]*):([0-9]+):?([0-9]+)?:? (.*)$", "working_dir": "${file_path}", "selector": "source.c, source.c++", "variants": [ { "name": "Run", "shell_cmd": "terminator -e 'gcc \"${file}\" -o \"${file_path}/${file_base_name}\" && \"${file_path}/${file_base_name}\";echo;echo; echo Press ENTER to continue; read line;exit; exec bash'" } ] } Based on https://stackoverflow.com/a/30724183/248823

Arch: dell inspiron 1545 Broadcom Limited BCM4312

Have to install this driver: https://www.archlinux.org/packages/?name=broadcom-wl-dkms
sudo pacman -S linux-headers broadcom-wl-dkms



Then after reboot wlp12s0 device was found: ip link
1: lo: mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: enp9s0: mtu 1500 qdisc fq_codel state UP mode DEFAULT group default qlen 1000
link/ether 00:25:64:47:bd:bb brd ff:ff:ff:ff:ff:ff
3: wlp12s0: mtu 1500 qdisc fq_codel state UNKNOWN mode DEFAULT group default qlen
1000
link/ether 00:22:5f:d3:14:d2 brd ff:ff:ff:ff:ff:ff


Arch: Wine and GPower

GPower 4.1 installs in wine 3.0 and runs, but freezes after executing calculations due to some problems with drawing the results's plot. To fix the freezing, need to install gdiplus and lib32-gnutls:
winetricks vcrun6 lib32-gnutls gdiplus
This fixes the freezes, although the plots can't be still seen.

mpv: play cinemix in terminator automatically

terminator -e 'mpv http://listen.cinemix.fr'

youtube-dl: download continue playlist

youtube-dl --download-archive downloaded.txt --no-post-overwrites -cwix --audio-format mp3