Step 1 : Convert movie to png’s

ffmpeg -i mymovie.mp4 %04d.png

Step 2 : Run script in same directory

#!/bin/bash
#set -x
f=MAE
numba=$(ls *png | wc -l)
numbastart=$(( $numba - 10))
numbapadding=$( printf "%04d\n" $numba)
numbapaddingstart=$( printf "%04d\n" $numbastart)
echo "$f "
mkdir -p images/$f
mkdir -p metric/$f
for x in $(seq -w 1 $numbapaddingstart) ; do
	a=$(( $x + 10))
	for y in $(seq -w $a $numbapadding) ; do

	compare -fuzz 20% -verbose -metric $f  $x.png $y.png images/$f/$x-$y.png  2> metric/$f/$x-$y.txt
	echo -n "."

	done
done
echo ""

Step 3 : There are metric stats in a subdirectory, let’s find the most matching parts (top 10)

orgpwd=$PWD
: > /tmp/top10
more metric/MAE/* | grep all   | awk '{ print $2 }' | cut -f1 -d. | sort -n |head | while read ; do
grep -H all metric/MAE/* | cut -f1,2 -d.  | grep " $REPLY" >> /tmp/top10
done
cat /tmp/top10 | cut -f3 -d/ | cut -f1 -d. | while read part ; do
	echo mkdir -p "$part"
	startpart=$(echo $part | cut -f1 -d-)
	endpart=$(echo $part | cut -f2 -d-)
	for file in $(seq -w $startpart $endpart) ; do
		echo cp 0${file}.png $part/
	done
	echo cd "$part" 
	echo ffmpeg -y -framerate 30 -pattern_type glob -i \'*.png\'  -c:v libx264 -pix_fmt yuv420p out.mp4
	echo cd $orgpwd
done

Run above script as ./script.sh > mybash.sh

This generates a bash file, check the contents and run using

“bash mybash.sh”

Last step : There are 10 movies in subdirs which should contain the best looping parts.
check these with: (use CTRL-Q in vlc to stop looping and go to the next file

ls */out.mp4 | while read movie ; do vlc -L $movie ; done

Example loop, made with above

Something from my old archive.

Colleage’s used to like the method.

source with color escape code applied
32=green 31=red and 97=white

echo  -e "\e[0;32m '.::///+:/-.        --///+//-:'' " 
echo  -e "\e[0;32m  '+oooooooooooo:   '+oooooooooooo: " 
echo  -e "\e[0;32m   /oooo++//ooooo:  ooooo+//+ooooo. " 
echo  -e "\e[0;32m   '+ooooooo:-:oo-  +o+::/ooooooo: " 
echo  -e "\e[0;32m    ':oooooooo+''    '.oooooooo+- " 
echo  -e "\e[0;32m      ':++ooo/.        :+ooo+/.' " 
echo  -e "\e[0;31m        ...'  '.----.' ''.. " 
echo  -e "\e[0;31m      .::::-'':::::::::.'-:::-'            \e[0;97m    www.henriaanstoot.nl" 
echo  -e "\e[0;31m     -:::-'   .:::::::-'  '-:::-           \e[0;97m    Test logo"
echo  -e "\e[0;31m    '::.  '.--.'  '' '.---.''.::' " 
echo  -e "\e[0;31m        .::::::::'  -::::::::' ' " 
echo  -e "\e[0;31m  .::' .:::::::::- '::::::::::''::. " 
echo  -e "\e[0;31m -:::' ::::::::::.  ::::::::::.':::- " 
echo  -e "\e[0;31m ::::  -::::::::.   '-::::::::  :::: " 
echo  -e "\e[0;31m -::-   .-:::-.''....''.-::-.   -::- " 
echo  -e "\e[0;31m  .. ''       .::::::::.     '..'.. " 
echo  -e "\e[0;31m    -:::-'   -::::::::::'  .:::::' " 
echo  -e "\e[0;31m    :::::::' -::::::::::' :::::::. " 
echo  -e "\e[0;31m    .:::::::  -::::::::. :::::::: " 
echo  -e "\e[0;31m     '-:::::'   ..--.'   ::::::. " 
echo  -e "\e[0;31m       '...'  '...--..'  '...' " 
echo  -e "\e[0;31m             .:::::::::: " 
echo  -e "\e[0;31m              '.-::::-'  " 

Obfuscate the logo to a file (1 time only)

cat source | base64 - -w0 1> ~/bin/logo.ob

Writes file (safe to copy paste/transfer) with:
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

Create an alias with the logo

alias logo=$(cat ~/bin/logo.ob | base64 -d )

executing logo will produce the logo

A friend needed to scrape data from an authenticated website.
This needs to be scripted and processed without human intervention.

Following steps are needed to get the correct curl commands (one time only)

next steps

save curl command in a file

remove –compresssion and -H ‘Cookie: JSESSIONID=?????????????????????????????’

add just after curl

-k (no certificate check) and
–cookie-jar tmpcookiefile

excecute this. It will give you a file with a session id and a true field.
(This will change at every login)
but is needed for subsequential requests

Next: use this sessioncookie to get the next authenticated request

So to scrape with login, you need two lines in your script.
One to get the session cookie. (YOUR username/pass will be in here!!)
And the second to get the needed page using the cookie

#!/bin/bash
#authenticate and save sessioncookie
curl -k --cookie-jar part1.cookie 'https://xxx.xxxxx.xxx/site/dologin'   -H 'Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7'   -H 'Accept-Language: en-GB,en;q=0.9,nl-NL;q=0.8,nl;q=0.7'   -H 'Cache-Control: max-age=0'   -H 'Connection: keep-alive'   -H 'Content-Type: multipart/form-data; boundary=----WebKitFormBoundaryb1chvkAVZSF3hPSu'    -H 'Origin: https://xxx.xxxxx.xxx'   -H 'Referer: https://xxx.xxxxx.xxx/site/loginform'   -H 'Sec-Fetch-Dest: document'   -H 'Sec-Fetch-Mode: navigate'   -H 'Sec-Fetch-Site: same-origin'   -H 'Upgrade-Insecure-Requests: 1'   -H 'User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/110.0.0.0 Safari/537.36'   -H 'sec-ch-ua: "Chromium";v="110", "Not A(Brand";v="24", "Google Chrome";v="110"'   -H 'sec-ch-ua-mobile: ?0'   -H 'sec-ch-ua-platform: "Windows"'   --data-raw $'------WebKitFormBoundaryb1chvkAVZSF3hPSu\r\nContent-Disposition: form-data; name="form[username]"\r\n\r\nusername\r\n------WebKitFormBoundaryb1chvkAVZSF3hPSu\r\nContent-Disposition: form-data; name="form[password]"\r\n\r\npassword\r\n------WebKitFormBoundaryb1chvkAVZSF3hPSu\r\nContent-Disposition: form-data; name="form[refname]"\r\n\r\n\r\n------WebKitFormBoundaryb1chvkAVZSF3hPSu\r\nContent-Disposition: form-data; name="form[refid]"\r\n\r\n\r\n------WebKitFormBoundaryb1chvkAVZSF3hPSu\r\nContent-Disposition: form-data; name="form[refmod]"\r\n\r\n\r\n------WebKitFormBoundaryb1chvkAVZSF3hPSu\r\nContent-Disposition: form-data; name="form[csrf_hash]"\r\n\r\ncsrf_ab09f7887d9dacfe1489b68b64fe6a01\r\n------WebKitFormBoundaryb1chvkAVZSF3hPSu--\r\n'
#get data from second page
curl -k -l --cookie part1.cookie  https://xxx.xxxxx.xxx/subscriber/overview