Um in Linux als Programm/App sichtbar/registriert zu sein, brauchen einen „Desktop Entry“ unter den Programmen/Apps unter

~/.local/share/applications/

Beispiel für eine Desktop Entry Datei

[Desktop Entry]
Name=Inkscape
Exec=/opt/inkscape/Inkscape.AppImage %u
Icon=/opt/inkscape/inkscape-logo.svg
Comment=Draw Freely
Type=Application
Terminal=false
Encoding=UTF-8
Categories=Utility;
StartupNotify=true
StartupWMClass=org.inkscape.Inkscape

Skripte für Desktop Entries

Skript um Bilder aus Appimage zu generieren

#!/bin/bash
set -e
set -o pipefail

APPIMAGE_PATH=$1

if [ -z "$APPIMAGE_PATH" ]; then
    echo "Missing argument: appimage"
    exit 1
fi

if [ ! -f "$APPIMAGE_PATH" ]; then
    echo "File not found: $APPIMAGE_PATH"
    exit 1
fi

TEMP_SQUASHFS_PATH=$(mktemp -d)
APPIMAGE_FULLPATH=$(readlink -e "$APPIMAGE_PATH")
APPIMAGE_FILENAME=$(basename "$APPIMAGE_PATH")
APP_NAME="${APPIMAGE_FILENAME%.*}"
DESKTOP_ENTRY_PATH="${HOME}/.local/share/applications/$APP_NAME.desktop"
ICON_FOLDER="${HOME}/.local/share/icons"
mkdir -p "${ICON_FOLDER}"

if [ "$2" == "--remove" ]; then
    rm -f "$DESKTOP_ENTRY_PATH"
    find "${ICON_FOLDER}" -maxdepth 1 -type f -name "$APP_NAME.*" -delete
    echo "Removed"
    exit 0
fi

pushd $TEMP_SQUASHFS_PATH
"$APPIMAGE_FULLPATH" --appimage-extract > /dev/null
cd squashfs-root/

echo "Choose icon: "
mapfile -t FILENAMES < <(find -L . -maxdepth 1 -type f \( -iname '*.png' -o -iname '*.svg' \))
i=1
for filename in "${FILENAMES[@]}"
do
    printf " %d) %s\n" "$i" "$filename"
    i=$((i + 1))
done

read -r SELECTED_INDEX

ICON_SRC=${FILENAMES[$((SELECTED_INDEX - 1))]}
ICON_EXT="${ICON_SRC##*.}"
ICON_DST="${ICON_FOLDER}/$APP_NAME.$ICON_EXT"
cp "$ICON_SRC" "$ICON_DST"

cat <<EOT > "$DESKTOP_ENTRY_PATH"
[Desktop Entry]
Name=$APP_NAME
StartupWMClass=$APP_NAME
Exec="$APPIMAGE_FULLPATH"
Icon=$ICON_DST
Type=Application
Terminal=false
EOT

popd

rm -rf $TEMP_SQUASHFS_PATH

echo "Created"

Skript Kemi

#!/bin/bash

# Überprüfen, ob die Datei als Argument übergeben wurde
if [ „$#“ -ne 2 ]; then
echo „Benutzung: $0 “
exit 1
fi

SCRIPT_PATH=$1
STARTER_NAME=$2

# Basisverzeichnis für KDE-Starter
STARTER_DIR=“$HOME/.local/share/applications“

# Starter-Datei erstellen
STARTER_FILE=“$STARTER_DIR/$STARTER_NAME.desktop“

# Inhalt für die Starter-Datei
echo „[Desktop Entry]“ > „$STARTER_FILE“
echo „Type=Application“ >> „$STARTER_FILE“
echo „Name=$STARTER_NAME“ >> „$STARTER_FILE“
echo „Exec=$SCRIPT_PATH“ >> „$STARTER_FILE“
echo „Icon=utilities-terminal“ >> „$STARTER_FILE“ # Hier kann das Icon angepasst werden
echo „Terminal=false“ >> „$STARTER_FILE“
echo „Categories=Utility;“ >> „$STARTER_FILE“
echo „Comment=Starte $STARTER_NAME“ >> „$STARTER_FILE“

# Berechtigungen für die Datei setzen
chmod +x „$STARTER_FILE“

echo „Starter für $STARTER_NAME wurde erstellt: $STARTER_FILE“

The table below lists all Main Categories.¹

Main Category	Description	Notes
AudioVideo	Application for presenting, creating, or processing multimedia (audio/video)
Audio	An audio application	Desktop entry must include AudioVideo as well
Video	A video application	Desktop entry must include AudioVideo as well
Development	An application for development
Education	Educational software
Game	A game
Graphics	Application for viewing, creating, or processing graphics
Network	Network application such as a web browser
Office	An office type application
Science	Scientific software
Settings	Settings applications	Entries may appear in a separate menu or as part of a „Control Center“
System	System application, „System Tools“ such as say a log viewer or network monitor
Utility	Small utility application, „Accessories“

https://askubuntu.com/questions/1328196/how-can-i-create-a-desktop-entry-for-an-appimage

1. Registered Categories for Linux/Unix Systems defined by freedesktop.org
   https://specifications.freedesktop.org/menu/latest/category-registry.html ↩︎