.bash_profile

.bash_prompt

.aliases

$ brew upgrade
$ brew install <package>
$ brew ls <package>

# local repo
$ git pull
$ git branch
$ git checkout <feature-branch>
$ git commit -am "message"
$ git push 

# remote repo 
open pull request
git merge pull request will merge the changes into master-branch

# local-repo
$ git checkout <master-branch>
$ git pull will synce the code base 

faac		lame		libvpx		opus		texi2html
fdk-aac		libav		libxml2		pkg-config	unrar
ffmpeg		libidn2		movgrab		python		wget
freetype	libmagic	mysql		python3		x264
gdbm		libogg		nasm		python@2	xvid
gettext		libpng		nmap		qt		xz
git		libunistring	node		readline	yasm
groovy		libvo-aacenc	openssl		sphinx-doc	youtube-dl
icu4c		libvorbis	openssl@1.1	sqlite
imagemagick	ghostscript 	ko_pron		lux 

(Video-Downloader, [siehe](https://github.com/iawia002/lux))

$ youtube-dl --extract-audio --recode-video "mp4" --audio-quality 0 -x "https://www.youtube.com/watch?v=Bv0yd9BBIl0"
# best command for downloading youtube videos as audio tracks
$ youtube-dl -i --embed-thumbnail --extract-audio --recode-video "mp4" --audio-quality 0 -x -o '%(playlist)s/%(playlist_title)s - %(title)s.%(ext)s' https://www.youtube.com/playlist?list=PLvWzOSZqGLxrGznjlSgBwc1HcCG8b0h8r

# best command to download videos from other sites, 
# see  supported sites: http://ytdl-org.github.io/youtube-dl/supportedsites.html  
$ youtube-dl -f mp4 https://www.srf.ch/play/tv/srf-news/video/street-parade-2019--tanzen-und-trinken-zum-motto-colors-of-unity?id=29533e8c-f546-41d9-8596-86202439c9a0

# convert to mp3
$ youtube-dl -f bestaudio "https://www.youtube.com/playlist?list=PLYRruMbyFRcBVdVN8v4FNkIKkXvL-bZn_" --exec "ffmpeg -i {} -codec:a libmp3lame -qscale:a 0 {}.mp3 "

.osx 

# start simple web server on localhost:8000
$ python -m SimpleHTTPServer 8000
$ uptime

# Python 3 equivalent of “python -m SimpleHTTPServer”
$ python3 -m http.server
# or with bindings: 
$ python -m http.server 8000 --bind 127.0.0.1

# lan ip address 
$ ipconfig getifaddr en0
# global ip address
$ curl ipecho.net/plain; echo

$ whoami
$ whois google.com

# get IP address
$ curl ifconfig.me	

#disk usage
$ du -ch 
#disk free
$ du -h
#lists all files und folder with its size (level two) and sorts them
$ du -hd 2 . /Users/yobo/Google\ Drive/ | sort -n -r

$ ifconfig wlan0

# download all files from a website (e.g. index page)
wget -A pdf,jpg -m -p -E -k -K -np http://siik.org/azn/?C=N%3BO=D 

* wp-cli
* ffmpeg
* scdl 
	* scdl -l https://soundcloud.com/username/sets/sets_13
* youtube-dl   
* json-server
* nmap

$ for x in ls *.webp; do  ffmpeg -i $x $x.jpg; done

$ ln -s /Applications/Sublime\ Text\ 2.app/Contents/SharedSupport/bin/subl /usr/local/bin/subl

source ~/.bash_profile

$ subl . 
$ subl <filename|foldername> 

$ echo $0

$ ssh-add ~/.ssh/id_rsa
$ ssh-add -K ~/.ssh/id_rsa

$ python -i <file_name.py>

$ pip3 install <package> ** e.g. pandas **

$ pip3 list --outdated 
$ pip3 install scdl --upgrade; $ pip3 install urllib3 -U

$ pip install --upgrade ipython jupyter
$ ipython notebook

$ virtualenv venv
$ source venv/bin/activate
$ pip install pafy

sudo nano /etc/wpa_supplicant/wpa_supplicant.conf

gs \
 -sOutputFile=ocomposition_for_computer_musicians_176x250.pdf \
 -sDEVICE=pdfwrite \
 -sPAPERSIZE=isob5 \
 -dCompatibilityLevel=1.4 \
 -dNOPAUSE \
 -dBATCH \
 -dPDFFitPage \
  composition_for_computer_musicians.pdf

$ tmutil listbackups
$ tmutil delete /Volumes/Time\ Machine-Backups/Backups.backupdb/<Users MacBook Pro>YYYY-MM-DD-HHMMSS/ 

// ssh from mac to raspberry pi
ssh pi@10.0.0.x 
// copy file from mac to raspberry pi
scp ...

cd ~/MagicMirror 
npm run start 

cd ~/MagicMirror && DISPLAY=:0 npm start

scp /to/some/file.txt pi@10.0.0.x:~/to/remote/folder

- MMM-Carousel
- MMM-bernwordclock
- MMM-AareGuru
- calendar