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#!/bin/bash
#v1.1
docker rm -v $(docker ps --filter status=exited -q 2>/dev/null) 2>/dev/null
docker rmi $(docker images --filter dangling=true -q 2>/dev/null) 2>/dev/null
rm -rf /var/lib/docker/tmp/*

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#!/usr/bin/env bash
#from
#https://superuser.com/questions/109213/how-do-i-list-the-ssl-tls-cipher-suites-a-particular-website-offers

# OpenSSL requires the port number.
SERVER=localhost:443
DELAY=1
ciphers=$(openssl ciphers 'ALL:eNULL' | sed -e 's/:/ /g')

echo Obtaining cipher list from $(openssl version).

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 #list the containers
 dcos task
 #get the desired ID and run the next command
 dcos task log  --follow {ID}

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#!/bin/bash
#This starts an ubuntu container with admin rights on the host file system
#Useful on bad configure docker machines
#---------------------------------------------------------------------------------
#USE WITH CAUTION !!!!
docker run -t -i -v /:/host ubuntu /bin/bash
#USE WITH CAUTION !!!!
#---------------------------------------------------------------------------------

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list.stream().map(Integer::parseInt).toArray(Integer[]::new)

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SPACE_USED=$(df -h /dev/disk1 | grep -vE '/dev/disk1' | awk 'FNR == 2 { print $4 }' | cut -d '%' -f1 )
if [ $SPACE_USED -ge 90 ]; then
    alert=$( echo "Running out of space on $(hostname) $SPACE_USED % used already")
    curl -X POST --data-urlencode "payload={\"text\": \"$alert\"}"  "your slack hook address goes here"
fi

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ffmpeg -i in.mp4 -filter:v "crop=out_w:out_h:x:y" out.mp4

out_w is the width of the output rectangle
out_h is the height of the output rectangle
x and y specify the top left corner of the output rectangle


ffmpeg.exe -i AW0001.mp4 -filter:v "crop=1280:720:0:0" camera1.mp4
ffmpeg.exe -i AW0001.mp4 -filter:v "crop=1280:720:0:720" camera2.mp4

fvztdk

git rm --cached submodule_path # delete reference to submodule HEAD (no trailing slash)
git rm .gitmodules             # if you have more than one submodules,
                               # you need to edit this file instead of deleting!
rm -rf submodule_path/.git     # make sure you have backup!!
git add submodule_path         # will add files instead of commit reference
git commit -m "remove submodule"

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//mode1
git submodule foreach --recursive git pull origin master
//mode2
git submodule update --recursive

//depending on the aligment of the planets, sometimes mode1 or mode2 works, sometimes none of them

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Nokogiri::XML('string with problem').serialize(:encoding => 'UTF-8')