shirou’s gists

shirou / usb-otg-service.unit

Created January 23, 2025 09:19

usb-otg-service.unit

	[Unit]
	Description=USB-gadget
	After=NetworkManager.service
	Wants=NetworkManager.service

	[Service]
	Type=oneshot
	RemainAfterExit=yes
	ExecStart=/usr/bin/nmcli con up usb-otg

shirou / nethogs.service

Created September 19, 2024 13:35

run nethogs to watch network traffic

	[Unit]
	Description=network usage by nethogs
	After=network.target

	[Service]
	Type=simple
	ExecStart=/home/shirou/nethogs.sh
	Restart=always
	RestartSec=5
	StartLimitInterval=0

shirou / convert.sh

Created September 19, 2024 01:30

DynamoDB JSON to flat JSON (nested JSON is not supported)

cat foo.json  | jq -r '.dynamodb.NewImage | with_entries(.value |= (if .S then .S elif .N then (.N|tonumber) elif .NULL then null elif .BOOL then .BOOL else . end))'

shirou / convert.go

Created July 26, 2024 04:10

convert from float32 to float64 with same precision.

	// float32Tofloat64は同じ小数点以下桁数を持つfloat64を返す
	func float32Tofloat64(f32 float32) float64 {
	// 小数点以下何桁かを調べるために文字列に変換。7はfloat32の有効桁数
	strF32 := fmt.Sprintf("%.7g", f32)

	// .からの文字数を取得
	pos := 0
	for i := 0; i < len(strF32); i++ {
	if strF32[i] == '.' {
	pos = len(strF32) - i - 1

shirou / aix_on_qemu.sh

Created June 2, 2024 13:58

AIX on qemu

	# AIX 7.2 PowerPC "POWER9"
	# https://github.com/shirou/gopsutil/pull/1651#issuecomment-2123753059
	sudo qemu-system-ppc64 -M pseries,ic-mode=xics -cpu POWER9 \
	-smp 4,sockets=4,cores=2,threads=2,maxcpus=16 \
	-m 4096 \
	-name aix_7200-04-02-2027 \
	-netdev bridge,id=net0,br=virbr0 \
	-device spapr-vlan,netdev=net0,mac=52:54:00:49:53:14 \
	-device virtio-scsi,id=scsi0 \
	-drive file=/var/lib/libvirt/images/aix7.2-ppc64.qcow2,if=none,id=drive-scsi0-0-0-0,format=qcow2,cache=none \

shirou / Dockerfile

Last active May 9, 2024 05:58

AWS Lambda bash CLI with own Docker container image

	FROM debian:trixie-slim

	ENV LAMBDA_TASK_ROOT=/var/task
	ENV LAMBDA_RUNTIME_DIR=/var/runtime

	RUN apt update && apt install -y curl unzip groff jq \
	&& apt-get clean \
	&& rm -rf /var/lib/apt/lists/*

	# Install AWS CLI

shirou / sample.go

Created September 8, 2023 03:02

dynamodb batch get items sample code

	const maxRetryCount = 3

	func (s *Server) getAlbums(ctx context.Context, albumIDs []uuid.UUID) ([]Album, error) {
	ctx, span := tracer.Start(ctx, "getAlbums")
	defer span.End()

	keysToGet := make([]map[string]types.AttributeValue, len(albumIDs))
	for i, albumID := range albumIDs {
	idv, err := attributevalue.Marshal(albumID.String())
	if err != nil {

shirou / socat_portforward_cloud_init.yaml

Created June 18, 2023 04:05

	#cloud-config
	repo_update: true
	repo_upgrade: all
	packages:
	- socat
	write_files:
	- content: \|
	[Unit]
	Description=Socat Port forward
	Wants=network-online.target

shirou / .wezterm.lua

Created January 5, 2023 04:27

wezterm setting on Windows

	local wezterm = require 'wezterm'

	local default_prog
	local set_environment_variables = {}

	if wezterm.target_triple == 'x86_64-pc-windows-msvc' then
	-- And inject clink into the command prompt
	default_prog =
	{ 'powershell.exe', '-NoLogo' }
	end

shirou / query.py

Last active August 17, 2022 03:59

AWS Timestream

	import boto3
	DBName = 'shiroutest'

	client = boto3.client('timestream-query')

	SQL = "SELECT * FROM shiroutest.USDJPY WHERE time between '2022-08-15' and '2022-08-16' "

	paginator = client.get_paginator('query')
	pageIterator = paginator.paginate(
	QueryString=SQL,

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