shortened and imo improved Readme (betterlockscreen#26)

related to betterlockscreen#25 and adds documentation for betterlockscreen#21

Author: AUTplayed

README.md

@@ -10,8 +10,6 @@ without the need to apply same effect again and again
 
 ## Screenshots
 
-Screenshots or it didnt happen... :P
-
 ![scrot1](https://github.com/pavanjadhaw/betterlockscreen.demo/raw/master/scrots/scrot1.png "scrot1.png")
 
 ![scrot2](https://github.com/pavanjadhaw/betterlockscreen.demo/raw/master/scrots/scrot2.png "scrot2.png")
@@ -20,7 +18,28 @@ Screenshots or it didnt happen... :P
 
 * [Demonstration](https://www.youtube.com/watch?v=9Ng5FZwnn6M&feature=youtu.be) - youtube.com
 
-## Getting Started
+## Features
+
+```
+# Lock screen
+betterlockscreen -l | --lock [modifier]
+# Set wallpaper
+betterlockscreen -w | --wall [modifier]
+# Suspend system
+betterlockscreen -s | --suspend [modifier]
+# Update image cache
+betterlockscreen -u | --update (path/to/image.png | path/to/directory) [-r | --resolution <resolution>] [-b | --blur <factor>]
+
+Modifiers:
+dim
+blur
+dimblur
+
+Example update image cache:
+betterlockscreen -u path/to/directory -r 1920x1080 -b 0.5
+In this case a random image from the directory is chosen, and converted to a 1920x1080 resolution with the blur factor set to 0.5
+```
+
 
 ## Installation via [AUR package](https://aur.archlinux.org/packages/betterlockscreen-git/)
 
@@ -38,34 +57,43 @@ yaourt -S betterlockscreen-git
 
 Clone this repo, push this script somewhere handy or you can even copy this script to /usr/local/bin so that it can be used from your i3config without defining whole path.
 
+```
+git clone https://github.com/pavanjadhaw/betterlockscreen 
+# optionally copy the script to /usr/local/bin so you can execute it everywhere
+cp betterlockscreen/betterlockscreen /usr/local/bin/betterlockscreen
+```
+
+OR
+
+If you dont want to clone the repo and save some bandwidth and diskspace you can do the following
+
+```
+wget https://raw.githubusercontent.com/pavanjadhaw/betterlockscreen/master/betterlockscreen
+chmod u+x betterlockscreen
+```
+
 ### Prerequisites
 
 Make sure you have following packages installed.
 
 * [i3lock-color](https://github.com/PandorasFox/i3lock-color) - i3lock fork with additional features (use development branch while building from source for arch use i3lock-color-git from AUR)
 * [imagemagick](https://www.imagemagick.org/script/index.php) - to apply effects to images
-* [feh](https://feh.finalrewind.org/) - used to set custom wallpaper
 * [xdpyinfo](https://www.x.org/archive/X11R7.7/doc/man/man1/xdpyinfo.1.xhtml) - find your screen resolution (to resize images accordingly)
 * [xrandr](https://www.x.org/wiki/Projects/XRandR/) - depends for xdpyinfo
-* [background.jpg](https://unsplash.com/) - find your fav background image
+* [bc](https://www.gnu.org/software/bc/) - used for setting the blur level
+* [feh](https://feh.finalrewind.org/) - used to set custom wallpaper
 
 *Note: systemd is required for the suspend feature.*
 
 ### Arch users
 
 To install required packages
 
-Install feh and imagemagick
-
-```
-pacman -S imagemagick feh
-```
-
-Install xrandr and xdpyinfo (currently used to find screenresolution)
+Install feh, imagemagick, xrandr and xdpyinfo (currently used to find screenresolution)
 If anyone knows better way so that these dependencies could be minimized, please open issue.
 
 ```
-pacman -S xorg-xrandr xorg-xdpyinfo
+pacman -S imagemagick feh xorg-xrandr xorg-xdpyinfo
 ```
 
 Install i3lock-color-git from AUR
@@ -79,145 +107,11 @@ Yaourt users
 ```
 yaourt -S i3lock-color-git
 ```
-
-### How to get started
-
-#### Clone this repo
-
-```
-git clone https://github.com/pavanjadhaw/betterlockscreen
-```
-
-navigate to cloned repository
-
-```
-cd betterlockscreen
-```
-
----
-
-#### If you dont want to clone the repo and save some bandwidth and diskspace you can do the following
-
-```
-wget https://raw.githubusercontent.com/pavanjadhaw/betterlockscreen/master/betterlockscreen
-
-chmod u+x betterlockscreen
-```
-
----
-
-### Load/Update the image cache
-
-*Grab your favourite image for lockscreen background*
-
-```
-betterlockscreen -u path/to/image.img
-```
-
-*if you want to use random image from specific directory*
-
-```
-betterlockscreen -u path/to/imagedir
-```
-
-*set random image as desktop background too*
-
-```
-betterlockscreen -u path/to/imagedir && betterlockscreen -w
-```
-
----
-
-### To lockscreen
-
-Original image as background
-
-```
-betterlockscreen -l
-```
-
-Use dimmed image as lockscreen background
-
-```
-betterlockscreen -l dim
-```
-
-Use blurred image as lockscreen background
-
-```
-betterlockscreen -l blur
-```
-
-Use dim + blurred image as lockscreen background
-
-```
-betterlockscreen -l dimblur
-```
-
----
-
-### To suspend system with lockscreen
-
-Original image as background
-
-```
-betterlockscreen -s
-```
-
-Use dimmed image as lockscreen background
-
-```
-betterlockscreen -s dim
-```
-
-Use blurred image as lockscreen background
-
-```
-betterlockscreen -s blur
-```
-
-Use dim + blurred image as lockscreen background
-
-```
-betterlockscreen -s dimblur
-```
-
----
-
-### To set wallpaper
-
-Original Image
-
-```
-betterlockscreen -w
-```
-
-Use dimmed image as desktop background
-
-```
-betterlockscreen -w dim
-```
-
-Use blurred image as desktop background
-
-```
-betterlockscreen -w blur
-```
-
-Use dim + blurred image as desktop background
-
-```
-betterlockscreen -w dimblur
-```
-
 ---
 
 To set desktop background on startup, add following lines to your .xintrc after pushing script to your path or you can use absolute path to script too
 
 ```
-# below line no longer needed as cached images are now permanently stored
-# exec betterlockscreen -u ~/.wall.png &
-
 exec betterlockscreen -w
 ```
 
@@ -229,25 +123,18 @@ If you are i3wm user, add following line to your i3config (~/.config/i3/config o
 bindsym $mod+shift+x exec betterlockscreen --lock
 ```
 
-*update image cache and set last cached image as desktop background*
+*set last cached image as desktop background*
 ```
-# Update image cache
-# no longer required as cached images are permanently stored
-# exec --no-startup-id betterlockscreen -u ~/.wall.png
-
 # Set last used image as desktop background
-# comment out below line if you use different desktop background utility
 exec --no-startup-id betterlockscreen -w
 ```
 
-**OR**
-
-*use following if you would like to be surprised by random wallpaper from directory of your choice on each startup*
+*set the image cache to a random image from a directory of your choice on each startup*
 ```
 # where Pictures/Wallpapers is the directory you would want to get random wallpapers from
 exec --no-startup-id betterlockscreen -u ~/Pictures/Wallpapers
 
-# add this only if you want to use same random image as desktop background too (you might want to)
+# add this only if you want to use same random image as desktop background too
 # it might not work as it takes few seconds for images to be cached,
 # try adding delay of 5 seconds if thats the case
 exec --no-startup-id betterlockscreen -w
@@ -262,5 +149,3 @@ This is my first bash script so if you think this could be improved or if you ha
 * Hat tip to anyone who's code was used
 * Thanks to those who contributed to make it better
 * Inspiration - r/unixporn
-* etc
-