swaybgRevolve.sh

A script that revolves up and down walpapers in a specified directory.

Help page

Usage:
  swaybgRevolve.sh [OPTION]
  -u  Revolve wallpapers up
  -d  Revolve wallpapers down

Specify the wallpaper directory in the variable wallpaperDir, for instance wallpaperDir="${HOME}/Wallpapers/SwayBG"
Bind the script separately to two keybindings with corresponding up and down options. Often two nearby keybindings for better operation.

For example:
```
bindsym $mod+Shift+n exec "$HOME/xxx/swaybgRevolve.sh -u &>/dev/null"
bindsym $mod+Shift+m exec "$HOME/xxx/swaybgRevolve.sh -d &>/dev/null"
```