Скрипт для предпросмотра в lf

lf-preview.sh

#!/bin/bash

preview_code() {
  if [[ "$(which bat)" == "" ]]
  then
    cat $1 | head -n $2
  else
    bat $1 -p -f -r ":$2"
  fi
}

preview_video() {
  if [[ "$(which mediainfo)" == "" ]]
  then
    echo -e "Some video file.\n\nInstall «mediainfo» to see more"
  else
    mediainfo "$1" | head -n $2
  fi
}

preview_binary() {
  echo -e "Scary binary file.\n\nIts type is «$FILETYPE»"
}

FILENAME="$1"
TERMINAL_HEIGHT="$2"

if [ -f "$1" ]
then
  FILETYPE=$(eval "file --mime-type ${FILENAME// /\\\ } -b")
  case $FILETYPE in
    text/*|application/json)
      preview_code "$FILENAME" $TERMINAL_HEIGHT
      ;;
    video/*|image/*)
      preview_video "$FILENAME" $TERMINAL_HEIGHT
      ;;
    *)
      preview_binary "$FILENAME" $TERMINAL_HEIGHT
      ;;
  esac
else
  tree $*
fi