ClementNerma

ZSH CheatSheet

This is a cheat sheet for how to perform various actions to ZSH, which can be tricky to find on the web as the syntax is not intuitive and it is generally not very well-documented.

Strings

Description	Syntax
Get the length of a string	${#VARNAME}
Get a single character	${VARNAME[index]}

oizhaolei

# Summary
A few notes I took to see if I could use MacOS as Hypevirsor in a similar fashion to Linux
I wanted to see how few addons were needed instead of using Parallels, Virtual Box, VM Fsion etc.
The idea is to use QEMU, Hypervisor Framework (https://developer.apple.com/documentation/hypervisor) and some custom host networking.

# Installations
brew install qemu (For controlling Hypervisor Framework)
brew install cdrtools (For making cloud init iso's)
http://tuntaposx.sourceforge.net/download.xhtml (For customer tap based networking)

getify

What Hiring Should Look Like

This is definitely not the first time I've written about this topic, but I haven't written formally about it in quite awhile. So I want to revisit why I think technical-position interviewing is so poorly designed, and lay out what I think would be a better process.

I'm just one guy, with a bunch of strong opinions and a bunch of flaws. So take these suggestions with a grain of salt. I'm sure there's a lot of talented, passionate folks with other thoughts, and some are probably a lot more interesting and useful than my own.

But at the same time, I hope you'll set aside the assumptions and status quo of how interviewing is always done. Just because you were hired a certain way, and even if you liked it, doesn't mean that it's a good interview process to repeat.

If you're happy with the way technical interviewing currently works at your company, fine. Just stop, don't read any further. I'm not going to spend any effort trying to convince you otherwise.

grahambrown11

At work we have a PowerWise+ UPS made localally by EDSUPS, it came with Silon2000 software - which is for Windows. We only have linux servers so I installed NUT and tried to get the correct settings so NUT could send a Slack for the UPS state change

Add a rule so the USB creates a known symlink /etc/udev/rules.d/10-local.rules

ACTION=="add", KERNEL=="ttyUSB[0-9]*", SUBSYSTEMS=="usb", ATTRS{idVendor}=="067b", ATTRS{idProduct}=="2303", SYMLINK+="ttyUSB_UPS"

In /etc/nut/nut.conf make MODE=standalone

aserhat

# Summary
A few notes I took to see if I could use MacOS as Hypevirsor in a similar fashion to Linux
I wanted to see how few addons were needed instead of using Parallels, Virtual Box, VM Fsion etc.
The idea is to use QEMU, Hypervisor Framework (https://developer.apple.com/documentation/hypervisor) and some custom host networking.

# Installations
brew install qemu (For controlling Hypervisor Framework)
brew install cdrtools (For making cloud init iso's)
http://tuntaposx.sourceforge.net/download.xhtml (For customer tap based networking)

h0bbel

# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.
deb http://us.archive.ubuntu.com/ubuntu/ bionic main restricted
# deb-src http://us.archive.ubuntu.com/ubuntu/ bionic main restricted

## Major bug fix updates produced after the final release of the
## distribution.
deb http://us.archive.ubuntu.com/ubuntu/ bionic-updates main restricted
# deb-src http://us.archive.ubuntu.com/ubuntu/ bionic-updates main restricted

andras-tim

Config for dehydrated (letsencrypt.sh)

Setup

1. Clone dehydrated repository into e.g. /opt/git-3th/letsencrypt.sh/
2. Download this file into /etc/letsencrypt.sh/ directory
3. Cusomize files

• Set CONTACT_EMAIL in config.sh
• Set your domains in domains.txt
• Set your custom domain specific things in hook.sh

4. Run first by hand for generate certs: /opt/git-3th/letsencrypt.sh/letsencrypt.sh -c

squarism

In the below keyboard shortcuts, I use the capital letters for reading clarity but this does not imply shift, if shift is needed, I will say shift. So ⌘ + D does not mean hold shift. ⌘ + Shift + D does of course.

Tabs and Windows

Function	Shortcut
New Tab	⌘ + T
Close Tab or Window	⌘ + W (same as many mac apps)
Go to Tab	⌘ + Number Key (ie: ⌘2 is 2nd tab)
Go to Split Pane by Direction	⌘ + Option + Arrow Key

voxxit

#!/usr/bin/env bash
set -x

# Domain you wish to update
DOMAIN="example.com"

# Get the v4/v6 addresses from icanhazip.com [pretty reliable!]
IPV4_ADDR=`wget -4 -q -O - icanhazip.com`
IPV6_ADDR=`wget -6 -q -O - icanhazip.com`

dergachev

OS X Screencast to animated GIF

This gist shows how to create a GIF screencast using only free OS X tools: QuickTime, ffmpeg, and gifsicle.

Instructions

To capture the video (filesize: 19MB), using the free "QuickTime Player" application: