running a qemu vm with display and network
qemu-system-x86_64 -cpu host -accel kvm -m 16G -smp 8 -bios /usr/share/OVMF/OVMF.fd -drive format=raw,file=/dev/sda -net nic,model=e1000 -net user -usbdevice tablet -vga qxl -vnc :0
generate boarding pass aztec from scanned pdf417
wl-paste -t image/png | ZXingReader /dev/stdin -bytes | xargs -I{} ZXingWriter -size 800x800 AZTEC {} meow.png
creating mapped entries for every twemoji svg
curl https://raw.githubusercontent.com/muan/unicode-emoji-json/main/data-by-emoji.json | np 'stdin().map(Object.entries).map(x => ["assets/svg/" + x[0].codePointAt(0).toString(16) + ".svg", "named/" + x[1].slug + ".svg"]).filter(([name, slug]) => fs.existsSync(name)).forEach(([name, slug]) => fs.linkSync(name, slug))'
pulse/pipewire stuffs
pactl load-module module-native-protocol-tcp listen=0.0.0.0
pactl load-module module-zeroconf-publish
...
pactl unload-module module-native-protocol-tcp
parallel
ls | grep -v .py | parallel python3 optimize.py {} | sort
find . -name 'APKBUILD' | rg -v unmaintained | parallel -j50 test-aport-fetch {}
find . -name 'py3-*.apk' | parallel tar tvf {} '|' rg site-packages '|' rg -F 0.0.0
sysctls
sysctl -w net.ipv4.ip_forward=1
sysctl -w net.ipv6.conf.all.disable_ipv6=1
sysctl -w net.ipv6.conf.default.disable_ipv6=1
smb client
doas smbclient -L //10.0.100.52/
doas smbclient //10.0.100.52/Confidential
disable cores
for core in {2..15}; do echo 0 | doas tee /sys/devices/system/cpu/cpu$core/online; done
android db
adb install-multiple -i "com.android.vending" *.apk
socat
socat -v OPENSSL-LISTEN:9990,verify=0,cert=./test.internal.pem,key=./test.internal-key.pem,fork tcp:127.0.0.1:1234
sort packages by installed side
< /lib/apk/db/installed | np 'apkindex().sort((a, b) => a.I - b.I).reverse().slice(0, 50).map(x => ([ x.P, x.I ]))'
print maintainers with trailing space
zcat /var/lib/mirror/edge/testing/x86_64/APKINDEX.tar.gz | np 'new Set(apkindex().map(pkg => pkg.m)).map(Array.from).filter(name => name?.endsWith(" "))'
remove six
apkgquery 'any(pkg.Depends, {.Pkgname == "py3-six"})' | wrl {( cd $(apkbuild-path $line); abuild fetch unpack; rga -e 'import six' -e 'from six import' src; echo "=== ^ $line ^ ==="; restdin cat )}