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@lukeplausin
lukeplausin / bash_aws_jq_cheatsheet.sh
Last active January 4, 2025 17:42
AWS, JQ and bash command cheat sheet. How to query, cut and munge things in JSON generally.
# Count total EBS based storage in AWS
aws ec2 describe-volumes | jq "[.Volumes[].Size] | add"
# Count total EBS storage with a tag filter
aws ec2 describe-volumes --filters "Name=tag:Name,Values=CloudEndure Volume qjenc" | jq "[.Volumes[].Size] | add"
# Describe instances concisely
aws ec2 describe-instances | jq '[.Reservations | .[] | .Instances | .[] | {InstanceId: .InstanceId, State: .State, SubnetId: .SubnetId, VpcId: .VpcId, Name: (.Tags[]|select(.Key=="Name")|.Value)}]'
# Wait until $instance_id is running and then immediately stop it again
aws ec2 wait instance-running --instance-id $instance_id && aws ec2 stop-instances --instance-id $instance_id
# Get 10th instance in the account
namespace Alphabet
{
public class AlphabetTest
{
public static readonly string Alphabet = "abcdefghijklmnopqrstuvwxyz0123456789";
public static readonly int Base = Alphabet.Length;
public static string Encode(int i)
{
if (i == 0) return Alphabet[0].ToString();
@clintongormley
clintongormley / load_test_data.sh
Last active January 5, 2024 07:32
Run these commands in your shell to setup the test data for Chapter 5
curl -XPUT 'http://localhost:9200/us/user/1?pretty=1' -d '
{
"email" : "[email protected]",
"name" : "John Smith",
"username" : "@john"
}
'
curl -XPUT 'http://localhost:9200/gb/user/2?pretty=1' -d '
{
@MohamedAlaa
MohamedAlaa / tmux-cheatsheet.markdown
Last active April 24, 2025 05:05
tmux shortcuts & cheatsheet

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

tmux cheatsheet

As configured in my dotfiles.

start new:

tmux

start new with session name: