Sebastian Gassner sepastian

## docker_rm_exited_containers.sh
#!/bin/bash
set -euo pipefail
IFS=$'\t\n'

docker rm \
  $(docker ps -a | grep Exited | awk -F ' ' '{print $NF}')

## unzip_fix_encoding.sh
#!/bin/bash

set -euo pipefail
IFS=$'\n\t'

# Unzip	a zipfile, then fix encoding in filenames.
#
# Assume filenames have been encoded with CP1250 (Win);
# convert encoding in filenames	to UTF-8.
#

## downgrade_debian.md

      
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                Downgrade Debian
              
          
    Debian System Downgrade


Is it supported? Short answer: No, it isn't supported.

From https://wiki.debian.org/SystemDowngrade.
It's still possible but:
WARNING: BACKUP YOUR SYSTEM FIRST.

  
## mongo_dump_all_collections_to_json.sh
#!/bin/bash

set -euo pipefail

docker_container=sipts-mongo
db=si-pts
target=$(mktemp -d "${db}_mongoexport_XXX")

echo "Dumping into ${target}."
docker exec "$docker_container" mongo --quiet \

## annotate_parallel.sh
# Annotate images with respective filename.
# Note: quotes must be escaped, or parallel will 'swallow' them...
find height_1000 -type f -name '*png' \
  | parallel convert \
    -verbose \
    -background \'#0009\' \
    -gravity center \
    -fill white \
    caption:\"{/}\" \
    {} \

## gist:301c4d5d08af11d8289aaa27b747ee01
# Customize colors in Emacs with M-x customize-face.
#
# From: https://stackoverflow.com/a/41840175/92049

## nikon_d7000_to_v4l2.sh
# Use a DSLR camera as a webcam, in Zoom and other applications.

# Inputs from https://gist.github.com/ianmackinnon/cf8a4d6cdb08852a818fc34bd4e1882f
# See # https://gstreamer.freedesktop.org/documentation/video4linux2/v4l2sink.html?gi-language=c#v4l2sink

# Install dependencies.
sudo apt install v4l2loopback-dkms gphoto2 gstreamer1.0-tools

# Load and verify module.
sudo modprobe v4l2loopback

## unzip_conv_utf8.sh
#!/bin/bash

set -euo pipefail

unzip file.zip

# Show what would be renamed.
convmv -f cp-1521 -t urf-8 *

# Do the renaming.

## gst_screencast.sh
#!/bin/bash

set -euo pipefail

# Record the screen into an h264 encoded MP4.
# Determing video resolution from the screen being recorded.
#
# Required gst-launch and xrandr.
#
# Based on https://stackoverflow.com/a/33822024/92049

## record_audio_monitor.sh
# Record audio that is currently output.
# From https://askubuntu.com/questions/229352/how-to-record-output-to-speakers
sudo apt-get install pulseaudio-utils lame mpg123
pacmd list-sinks | grep -e 'name:' -e 'index' -e 'Speakers'
parec -d alsa_output.pci-0000_00_1f.3.analog-stereo.monitor | lame -r -V0 - out.mp3
# ctrl + c to stop recording
mpg123 out.mp3
	#!/bin/bash
	set -euo pipefail
	IFS=$'\t\n'

	docker rm \
	$(docker ps -a \| grep Exited \| awk -F ' ' '{print $NF}')
	#!/bin/bash

	set -euo pipefail
	IFS=$'\n\t'

	# Unzip a zipfile, then fix encoding in filenames.
	#
	# Assume filenames have been encoded with CP1250 (Win);
	# convert encoding in filenames to UTF-8.
	#
	#!/bin/bash

	set -euo pipefail

	docker_container=sipts-mongo
	db=si-pts
	target=$(mktemp -d "${db}_mongoexport_XXX")

	echo "Dumping into ${target}."
	docker exec "$docker_container" mongo --quiet \
	# Annotate images with respective filename.
	# Note: quotes must be escaped, or parallel will 'swallow' them...
	find height_1000 -type f -name '*png' \
	\| parallel convert \
	-verbose \
	-background \'#0009\' \
	-gravity center \
	-fill white \
	caption:\"{/}\" \
	{} \
	# Customize colors in Emacs with M-x customize-face.
	#
	# From: https://stackoverflow.com/a/41840175/92049
	# Use a DSLR camera as a webcam, in Zoom and other applications.

	# Inputs from https://gist.github.com/ianmackinnon/cf8a4d6cdb08852a818fc34bd4e1882f
	# See # https://gstreamer.freedesktop.org/documentation/video4linux2/v4l2sink.html?gi-language=c#v4l2sink

	# Install dependencies.
	sudo apt install v4l2loopback-dkms gphoto2 gstreamer1.0-tools

	# Load and verify module.
	sudo modprobe v4l2loopback
	#!/bin/bash

	set -euo pipefail

	unzip file.zip

	# Show what would be renamed.
	convmv -f cp-1521 -t urf-8 *

	# Do the renaming.
	#!/bin/bash

	set -euo pipefail

	# Record the screen into an h264 encoded MP4.
	# Determing video resolution from the screen being recorded.
	#
	# Required gst-launch and xrandr.
	#
	# Based on https://stackoverflow.com/a/33822024/92049
	# Record audio that is currently output.
	# From https://askubuntu.com/questions/229352/how-to-record-output-to-speakers
	sudo apt-get install pulseaudio-utils lame mpg123
	pacmd list-sinks \| grep -e 'name:' -e 'index' -e 'Speakers'
	parec -d alsa_output.pci-0000_00_1f.3.analog-stereo.monitor \| lame -r -V0 - out.mp3
	# ctrl + c to stop recording
	mpg123 out.mp3