joesan

find . -maxdepth 1 -mindepth 1 -type d -exec sh -c '(echo {} && cd {} && git status -s && echo)' \;

joesan

Step 1: Delete all Local Tags

```
git tag | xargs git tag -d
```

Step 2: Delete all Remote Tags

```
git ls-remote --tags --refs origin | cut -f2 | xargs git push origin --delete

joesan

/* The person who associated a work with this deed has dedicated the work to the public domain by waiving all of his or
 * her rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law.
 *
 * You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.
 *
 * In no way are the patent or trademark rights of any person affected by CC0, nor are the rights that other persons may
 * have in the work or in how the work is used, such as publicity or privacy rights.
 * Unless expressly stated otherwise, the person who associated a work with this deed makes no warranties about the work,
 * and disclaims liability for all uses of the work, to the fullest extent permitted by applicable law.
 * When using or citing the work, you should not imply endorsement by the author or the affirmer.

joesan

Ubuntu 20.04 Playing with Python versions

Loads of solutions exist, but for changing the system default, alias is not the way to go.

$ update-alternatives --list python update-alternatives: error: no alternatives for python

joesan

Kubernetes on (vanilla) Raspbian Lite

Yes - you can create a Kubernetes cluster with Raspberry Pis with the default operating system called Raspbian. This means you can carry on using all the tools and packages you're used to with the officially-supported OS.

Pre-reqs:

• You must use an RPi 2 or 3 for use with Kubernetes
• I'm assuming you're using wired ethernet (Wi-Fi also works, but it's not recommended)

Master node setup

joesan

Find the SD card device

In this case, the SD card is /dev/disk4. DO NOT get this wrong or you may destroy all the data on the wrong disk/card/drive.

diskutil list

/dev/disk0
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *160.0 GB   disk0

1: EFI 209.7 MB disk0s1

joesan

find . -name "*.scala" -print | xargs wc -l

joesan

#!/bin/sh
exec scala "$0" "$@"
!#

/***
scalaVersion := "2.11.11"

libraryDependencies ++= Seq(
  "com.typesafe" % "config" % "1.3.1"
)

joesan

sbt 'set test in Test := {}' clean assembly

joesan

object WiFiConnector extends App {

  if (System.getProperty("os.name").contains("Mac"))
    scanMac()
  else
    scanWindows()

  def scanWindows() = {
    val builder = new ProcessBuilder(