nightscape

rename a section of a filename, i. e. example.1.{txt,conf,db} or 12345.1.{wav,ogg,mp3} and change the 1 to a 2 in the filename while preserving the rest of it.

  zmv -n '(*.)(<->)(.[^.]#)' '$1$(($2+1))$3' # would rename x.0001.y to x.2.y.
  zmv -n '(*.0#)(<->)(.[^.]#)' '$1$(($2+1))$3'

Rename files to lower case

  $ zmv '*' '${(L)f}'

andrewodri

FROM debian:10-slim

RUN apt-get update -y && \
  apt-get install -y awscli curl gnupg && \
  apt-key adv --fetch-keys "https://nginx.org/keys/nginx_signing.key" && \
  echo "deb http://nginx.org/packages/debian buster nginx" > /etc/apt/sources.list.d/nginx.list

RUN curl --silent --show-error --location --output /tmp/amazon-ssm-agent.deb "https://s3.us-east-1.amazonaws.com/amazon-ssm-us-east-1/latest/debian_amd64/amazon-ssm-agent.deb" && \
  dpkg -i /tmp/amazon-ssm-agent.deb

ttimasdf

-- Adapted from these sources:
-- http://peterdowns.com/posts/open-iterm-finder-service.html
-- https://gist.github.com/cowboy/905546
-- 
-- Modified to work with files as well, cd-ing to their container folder
on run {input, parameters}
	tell application "Finder"
		set my_file to first item of input
		set is_folder to (do shell script "file -b " & quoted form of (POSIX path of my_file))
		if is_folder ends with "directory" then

ulitiy

#include <Servo.h>

Servo myservo;

const int servoPin = 9;
const int buttonPin = 12;
const int ledPin = 13;

void setup() {
  myservo.attach(servoPin);

ipbastola

Safest way to clean up boot partition - Ubuntu 14.04LTS-x64, Ubuntu 16.04LTS-x64

Reference

Case I: if /boot is not 100% full and apt is working

1. Check the current kernel version

$ uname -r 

danieleggert

GPG and git on macOS

Setup

No need for homebrew or anything like that. Works with https://www.git-tower.com and the command line.

1. Install https://gpgtools.org -- I'd suggest to do a customized install and deselect GPGMail.
2. Create or import a key -- see below for https://keybase.io
3. Run gpg --list-secret-keys and look for sec, use the key ID for the next step
4. Configure git to use GPG -- replace the key with the one from gpg --list-secret-keys

h0tw1r3

$ git clone -b 1.22 https://github.com/crosstool-ng/crosstool-ng.git
$ cd crosstool-ng
$ ./bootstrap
$ ./configure --prefix=/usr/local
$ make
$ sudo make install
$ cd ..
$ mkdir ctng
$ cd rpi1
$ ct-ng menuconfig

olih

Processing JSON using jq

jq is useful to slice, filter, map and transform structured json data.

Installing jq

On Mac OS

brew install jq

AutomationD

<filetype binary="false" description="Logstash Config" name="Logstash Config">
  <highlighting>
    <options>
      <option name="LINE_COMMENT" value="#" />
      <option name="COMMENT_START" value="" />
      <option name="COMMENT_END" value="" />
      <option name="HEX_PREFIX" value="" />
      <option name="NUM_POSTFIXES" value="" />
      <option name="HAS_BRACES" value="true" />
      <option name="HAS_BRACKETS" value="true" />

devster31

# https://www.nginx.com/blog/tuning-nginx/
worker_connections 1024;

# Limit the number of connections NGINX allows, for example from a single client
# IP address. Setting them can help prevent individual clients from opening too
# many connections and consuming too many resources.
server {
    # When several limit_conn directives are specified, any configured limit will apply.
    limit_conn perip 10;
    limit_conn perserver 100;