Linux: json to parquet

Use: https://github.com/domoritz/json2parquet ~/.cargo/bin/json2parquet -c zstd data_000000.json data_000000.parquet

VNC: Arch linux autostart vnc

Add /home//.config/systemd/user/myvnc@:1.service [Unit]
Description=My VNC

[Service]
Type=simple
ExecStartPre=/bin/sh -c '/usr/bin/vncserver -kill %i > /dev/null 2>&1 || :'
ExecStart=/usr/bin/vncserver %i
ExecStop=/usr/bin/vncserver -kill %i

[Install]
WantedBy=default.target
Then systemctl --user start myvnc@\:1.service and systemctl --user enable myvnc@\:1.service and

tigervnc: Diable vnc password on Arch Linux

Edit /etc/tigervnc/vncserver-config-defaults and add: securitytypes=none

spark and notebook from docker

docker run --rm -p 10000:8888 jupyter/all-spark-notebook

Arch: Toobox and Distrobox error "Authorization required, but no authorization protocol specified"

Executing on the host (Arch) xhost + made the gui applications work in both Toobox and Distrobox.

qrencode: create pdf QR code

qrencode -s 6 -l H -o "URL.png" "https://some-url"

wget: Download full page in a loop

for p in {1..96};do wget -p -k -H -e robots=off https:///page${p}.html;done

Arch: Microsoft team "Login" button does not work (can't click it).

It my case installing `gnome-keyring` solved the issue: yay gnome-keyring

rdesktop: Arch linux no sound from remote

The package that comes with arch does not support pulse audio: rdesktop-vrdp -help

'-r sound:[local[:driver[:device]]|off|remote]': enable sound redirection
remote would leave sound on server
available drivers for 'local':
oss: OSS output driver, default device: /dev/dsp or $AUDIODEV
I ended up compling rdesktop from https://github.com/rdesktop/rdesktop: # run `autoreconf` -i first if configure is missing
./configure --with-sound
make
sudo make install
This resulted in pusle support: '-r sound:[local[:driver[:device]]|off|remote]': enable sound redirection
remote would leave sound on server
available drivers for 'local':
pulse: PulseAudio output driver, default device: system dependent
alsa: ALSA output driver, default device: default
oss: OSS output driver, default device: /dev/dsp or $AUDIODEV
libao: libao output driver, default device: system dependent
Use: /opt/myrdesktop/bin/rdesktop -u "user_name" -r sound:local:pulse windows_ip_addr

Krusader: Arch Linux kde "file type options" does not open

Have to install: kde-cli-tools