mirror of https://github.com/tiyn/wiki
TiynGER
4 years ago
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# File Manager
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A file manager is a program to manage files on a computer.
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There are many different programs to choose from.
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- [ViFM](vifm.md) is a manager based on vim style and keybindings
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# ViFM
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[ViFM](https://vifm.info) is a file manager focussed on vim like usage.
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## Image Previews with Ueberzug
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This section is based on a
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[video by Distrotube](https://www.youtube.com/watch?v=qgxsduCO1pE).
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First you need to install [Ueberzug](https://github.com/seebye/ueberzug)
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on your system.
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After that you need to add 2 files to your path:
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- vifmimg
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- vifmrun
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If you want to preview files vifmrun you will start vifmrun instead of vifm.
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vifmrun:
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```sh
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#!/usr/bin/env bash
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# by cirala, checkout github.com/cirala/vifmimg
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export FIFO_UEBERZUG="/tmp/vifm-ueberzug-${PPID}"
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if [ ! -f "/usr/bin/ueberzug" ]; then
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vifm
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exit
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fi
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function cleanup {
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rm "$FIFO_UEBERZUG" 2>/dev/null
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pkill -P $$ 2>/dev/null
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}
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pkill -P $$ 2>/dev/null
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rm "$FIFO_UEBERZUG" 2>/dev/null
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mkfifo "$FIFO_UEBERZUG" >/dev/null
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trap cleanup EXIT 2>/dev/null
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tail --follow "$FIFO_UEBERZUG" | ueberzug layer --silent --parser bash 2>&1 >/dev/null &
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vifm "$@"
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cleanup
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```
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vifmimg:
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```sh
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#!/usr/bin/env bash
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readonly ID_PREVIEW="preview"
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#PLAY_GIF="yes"
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# By enabling this option the GIF will be animated, by leaving it commented like it
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# is now will make the gif previews behave the same way as video previews.
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#AUTO_REMOVE="yes"
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# By enabling this option the script will remove the preview file after it is drawn
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# and by doing so the preview will always be up-to-date with the file.
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# This however, requires more CPU and therefore affects the overall performance.
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# The messy code below is for moving pages in pdf files in the vifm file preview by
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# utilizing the < and > keys which will be bound to `vifmimg inc` or `vifmimg dec`.
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# by cirala, checkout github.com/cirala/vifmimg
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PDF_PAGE_CONFIG="$HOME/.config/vifm/vifmimgpdfpage"
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PDF_FILE_CONFIG="$HOME/.config/vifm/vifmimgpdffile"
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PDF_PAGE=1
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PDF_FILE=""
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# Initialize the variables and required files
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[[ -f "$PDF_PAGE_CONFIG" ]] && PDF_PAGE=$(cat $PDF_PAGE_CONFIG) || touch $PDF_PAGE_CONFIG
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[[ -f "$PDF_FILE_CONFIG" ]] && PDF_FILE=$(cat $PDF_FILE_CONFIG) || touch $PDF_FILE_CONFIG
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# Create temporary working directory if the directory structure doesn't exist
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if [[ ! -d "/tmp$PWD/" ]]; then
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mkdir -p "/tmp$PWD/"
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fi
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function inc() {
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VAL="$(cat $PDF_PAGE_CONFIG)"
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echo "$(expr $VAL + 1)" > $PDF_PAGE_CONFIG
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}
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function dec() {
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VAL="$(cat $PDF_PAGE_CONFIG)"
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echo "$(expr $VAL - 1)" > $PDF_PAGE_CONFIG
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if [[ $VAL -le 0 ]]; then
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echo 0 > $PDF_PAGE_CONFIG
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fi
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}
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function previewclear() {
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declare -p -A cmd=([action]=remove [identifier]="$ID_PREVIEW") \
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> "$FIFO_UEBERZUG"
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}
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function fileclean() {
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if [[ -f "/tmp$PWD/$6.png" ]]; then
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rm -f "/tmp$PWD/$6.png"
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elif [[ -d "/tmp$PWD/$6/" ]]; then
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rm -rf "/tmp$PWD/$6/"
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fi
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}
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function preview() {
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declare -p -A cmd=([action]=add [identifier]="$ID_PREVIEW"
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[x]="$2" [y]="$3" [width]="$4" [height]="$5" \
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[path]="$PWD/$6") \
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> "$FIFO_UEBERZUG"
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}
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function previewvideo() {
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if [[ ! -f "/tmp$PWD/$6.png" ]]; then
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ffmpegthumbnailer -i "$PWD/$6" -o "/tmp$PWD/$6.png" -s 0 -q 10
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fi
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declare -p -A cmd=([action]=add [identifier]="$ID_PREVIEW"
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[x]="$2" [y]="$3" [width]="$4" [height]="$5" \
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[path]="/tmp$PWD/$6.png") \
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> "$FIFO_UEBERZUG"
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}
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function previewepub() {
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if [[ ! -f "/tmp$PWD/$6.png" ]]; then
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epub-thumbnailer "$6" "/tmp$PWD/$6.png" 1024
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fi
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declare -p -A cmd=([action]=add [identifier]="$ID_PREVIEW"
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[x]="$2" [y]="$3" [width]="$4" [height]="$5" \
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[path]="/tmp$PWD/$6.png") \
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> "$FIFO_UEBERZUG"
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}
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function previewaudio() {
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if [[ ! -f "/tmp${PWD}/$6.png" ]]; then
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ffmpeg -i "$6" "/tmp${PWD}/$6.png" -y &> /dev/null
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fi
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declare -p -A cmd=([action]=add [identifier]="$ID_PREVIEW"
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[x]="$2" [y]="$3" [width]="$4" [height]="$5" \
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[path]="/tmp${PWD}/$6.png") \
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> "$FIFO_UEBERZUG"
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}
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function previewgif() {
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if [[ ! -d "/tmp$PWD/$6/" ]]; then
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mkdir -p "/tmp$PWD/$6/"
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convert -coalesce "$PWD/$6" "/tmp$PWD/$6/$6.png"
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fi
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if [[ ! -z "$PLAY_GIF" ]]; then
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for frame in $(ls -1 /tmp$PWD/$6/$6*.png | sort -V); do
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declare -p -A cmd=([action]=add [identifier]="$ID_PREVIEW"
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[x]="$2" [y]="$3" [width]="$4" [height]="$5" \
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[path]="$frame") \
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> "$FIFO_UEBERZUG"
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# Sleep between frames to make the animation smooth.
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sleep .07
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done
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else
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declare -p -A cmd=([action]=add [identifier]="$ID_PREVIEW"
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[x]="$2" [y]="$3" [width]="$4" [height]="$5" \
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[path]="/tmp$PWD/$6/$6-0.png") \
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> "$FIFO_UEBERZUG"
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fi
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}
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function previewpdf() {
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if [[ ! "$6" == "$PDF_FILE" ]]; then
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PDF_PAGE=1
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echo 1 > $PDF_PAGE_CONFIG
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rm -f "/tmp$PWD/$6.png"
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fi
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if [[ ! "$PDF_PAGE" == "1" ]] && [[ -f "/tmp$PWD/$6.png" ]]; then
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rm -f "/tmp$PWD/$6.png"
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fi
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if [[ ! -f "/tmp$PWD/$6.png" ]]; then
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pdftoppm -png -f $PDF_PAGE -singlefile "$6" "/tmp$PWD/$6"
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fi
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echo "$6" > $PDF_FILE_CONFIG
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declare -p -A cmd=([action]=add [identifier]="$ID_PREVIEW"
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[x]="$2" [y]="$3" [width]="$4" [height]="$5" \
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[path]="/tmp$PWD/$6.png") \
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> "$FIFO_UEBERZUG"
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}
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function previewmagick() {
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if [[ ! -f "/tmp$PWD/$6.png" ]]; then
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convert -thumbnail $(identify -format "%wx%h" "$6") "$PWD/$6" "/tmp$PWD/$6.png"
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fi
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declare -p -A cmd=([action]=add [identifier]="$ID_PREVIEW"
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[x]="$2" [y]="$3" [width]="$4" [height]="$5" \
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[path]="/tmp$PWD/$6.png") \
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> "$FIFO_UEBERZUG"
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}
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function main() {
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case "$1" in
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"inc") inc "$@" ;;
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"dec") dec "$@" ;;
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"clear") previewclear "$@" ;;
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"clean") fileclean "$@" ;;
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"draw") preview "$@" ;;
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"videopreview") previewvideo "$@" ;;
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"epubpreview") previewepub "$@" ;;
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"gifpreview") previewgif "$@" ;;
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"pdfpreview") previewpdf "$@" ;;
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"magickpreview") previewmagick "$@" ;;
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"audiopreview") previewaudio "$@" ;;
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"*") echo "Unknown command: '$@'" ;;
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esac
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}
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main "$@"
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```
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