Added check in config/.scripts/*.sh scripts wether the needed commands are available

Fixed shebang for some scrips
Removed unnecessary config/.scripts/lock.sh and replaced lock.sh with i3lock.py in the script that executed lock.sh

config/.local/share/ranger/bookmarks

@@ -9,5 +9,5 @@ t:/home/tuan/Templates
 w:/home/tuan/workspace_l/Projects
 k:/home/tuan/Documents/CTF/TryHackMe/VulnUniversity
 q:/home/tuan/.nextcloud/Quick Drop
-':/home/tuan/Pictures/Screenshots
+':/home/tuan/.scripts
 e:/home/tuan/Documents/CTF/TryHackMe/Ice/2_Recon

config/.scripts/i3lock.py

@@ -1,3 +1,5 @@
+#!/bin/python3
+
 import time
 import os
 

config/.scripts/lock.sh

@@ -1,2 +0,0 @@
-#!/bin/bash
-/usr/bin/python /home/tuan/.scripts/i3lock.py;

config/.scripts/screen.sh

@@ -1,5 +1,7 @@
 #!/bin/sh
 
+type xbacklight >/dev/null 2>&1 || { echo >&2 "I require xbacklight but it's not installed.  Aborting."; exit 1; }
+type dunstify >/dev/null 2>&1 || { echo >&2 "I require dunstify but it's not installed.  Aborting."; exit 1; }
 
 case $1 in
     "up"*)

config/.scripts/screenshot.sh

@@ -1,5 +1,9 @@
 #!/bin/sh
 
+type maim >/dev/null 2>&1 || { echo >&2 "I require maim but it's not installed.  Aborting."; exit 1; }
+type dunstify >/dev/null 2>&1 || { echo >&2 "I require dunstify but it's not installed.  Aborting."; exit 1; }
+type xclip >/dev/null 2>&1 || { echo >&2 "I require xclip but it's not installed.  Aborting."; exit 1; }
+type xdotool >/dev/null 2>&1 || { echo >&2 "I require xdotool but it's not installed.  Aborting."; exit 1; }
 
 d=$HOME/Pictures/Screenshots/$(date +%G-%m);
 case $1 in

config/.scripts/sound.sh

@@ -1,5 +1,9 @@
 #!/bin/sh
 
+type pactl >/dev/null 2>&1 || { echo >&2 "I require pactl but it's not installed.  Aborting."; exit 1; }
+type amixer >/dev/null 2>&1 || { echo >&2 "I require amixer but it's not installed.  Aborting."; exit 1; }
+type dunstify >/dev/null 2>&1 || { echo >&2 "I require dunstify but it's not installed.  Aborting."; exit 1; }
+
 defaultSink=$(pactl info | grep 'Default Sink' | cut -d' ' -f3);
 curVolume=$(amixer get Master | grep -o \[0-9\]\\+% -m 1);
 

config/.scripts/startup.sh

@@ -1,4 +1,6 @@
-#!/bin/bash
+#!/bin/sh
+
+type xset >/dev/null 2>&1 || { echo >&2 "I require xset but it's not installed.  Aborting."; exit 1; }
 
 lower_battery_threshold=10
 KBD="";
@@ -15,7 +17,7 @@ function kb_routine {
     esac
 
     if [ "$KBD" != "$oldKBD" ]; then
-        notify-send "$KBD";
+        dunstify -r 1 "$KBD";
     fi
 
 }
@@ -23,7 +25,7 @@ function kb_routine {
 function battery_routine {
     capacity=$(< /sys/class/power_supply/BAT0/capacity)
     if [[ $capacity -lt lower_battery_threshold ]]; then
-        notify-send "$capacity";
+        dunstify "$capacity";
     fi
 }