Script or executable to use to preview files. Sets lf's previewer option.
null or path
null
pkgs.writeShellScript "pv.sh" ''
#!/bin/sh
case "$1" in
*.tar*) tar tf "$1";;
*.zip) unzip -l "$1";;
*.rar) unrar l "$1";;
*.7z) 7z l "$1";;
*.pdf) pdftotext "$1" -;;
*) highlight -O ansi "$1" || cat "$1";;
esac
''