iamzhout

tmux cheat sheet

(C-x means ctrl+x, M-x means alt+x)

Prefix key

The default prefix is C-b. If you (or your muscle memory) prefer C-a, you need to add this to ~/.tmux.conf:

remap prefix to Control + a

iamzhout

Kubectl output options

Let's look at some basic kubectl output options.

Our intention is to list nodes (with their AWS InstanceId) and Pods (sorted by node).

We can start with:

kubectl get no

iamzhout

#!/bin/bash

# Start/stop an EC2 instance to use as a ssh tunnel
# requires: 1. the aws package locally -- sudo apt-get install awscli
#           2. run `aws configure` to config aws environment beforehand
#
# usage: ./tunnel.sh start (spin up EC2 and create the tunnel)
#        ./tunnel.sh stop  (stop the EC2 instance to save money)
#        ./tunnel.sh status (show EC2 instance detail)
#        ./tunnel.sh resume (in case your tunnel is interrupted but the EC2 instance is still running)

iamzhout

# original URL: https://www.symantec.com/connect/downloads/readynosleepexe-prevents-screensaver-and-pc-locking

#AutoIt3Wrapper_icon=nosleep.ico

Opt("TrayOnEventMode",1)
Opt("TrayMenuMode",1)

$AboutItem = TrayCreateItem("About")
TrayItemSetOnEvent(-1,"ReadList")
TrayCreateItem("")

iamzhout

2015-10-26 20:22:46
Full thread dump Java HotSpot(TM) 64-Bit Server VM (25.66-b17 mixed mode):

"JobScheduler FJ pool 0/4" #1826 daemon prio=6 os_prio=0 tid=0x00000000232d5800 nid=0x4b0c waiting on condition [0x000000001b31f000]
   java.lang.Thread.State: TIMED_WAITING (parking)
	at sun.misc.Unsafe.park(Native Method)
	- parking to wait for  <0x00000000e787b280> (a jsr166e.ForkJoinPool)
	at jsr166e.ForkJoinPool.awaitWork(ForkJoinPool.java:1756)
	at jsr166e.ForkJoinPool.scan(ForkJoinPool.java:1694)
	at jsr166e.ForkJoinPool.runWorker(ForkJoinPool.java:1642)