diff --git a/func.py b/func.py
deleted file mode 100644
index 2dcf174..0000000
--- a/func.py
+++ /dev/null
@@ -1,39 +0,0 @@
-import json
-import os 
-import random
-import sys
-
-def run(command,output=False):
-    devNull = ">/dev/null"
-    if output == True:
-        os.system(command)
-    else:
-        os.system(command + devNull)
-
-def kill():
-    '''
-    back4.sh will output artifacts if run more 2 processes
-    It function read PID in /tmp/back4.sh.pid, and kill process.
-    '''
-    with open('/tmp/back4.sh.pid','r') as file:
-        for pid in file:
-            run(f'kill {pid}')
-
-def configParsing():
-    pathToConfig = os.path.expanduser('~')+'/.config/wallpyper/config'
-    with open(pathToConfig) as file:
-        contentFile = file.read()
-        config = json.loads(contentFile)
-        return config
-
-def setWallPaper():
-    PATH = configParsing()['path_to_wallpapers']
-    files = os.listdir(PATH) 
-
-    media = random.choices(files)[0]
-
-    if media[-4:] != '.gif':
-        run(f"feh --bg-scale {PATH}{media}")
-    else:
-        run(f"back4.sh auto {PATH}{media} & echo $! > /tmp/back4.sh.pid",True)
-        # > tmp/back4.sh.pid write PID for kill()
diff --git a/main.py b/main.py
deleted file mode 100755
index b71e19e..0000000
--- a/main.py
+++ /dev/null
@@ -1,24 +0,0 @@
-#!/usr/bin/python3
-
-from apscheduler.schedulers.background import BlockingScheduler 
-from func import *
-
-def start():
-    try:
-        kill()
-    except FileNotFoundError:
-        setWallPaper()
-        
-    setWallPaper()
-
-if __name__ == '__main__':
-    start()
-
-    sched = BlockingScheduler()
-
-    sched.add_job(start,'cron',\
-        second=configParsing()['second'],\
-        minute=configParsing()['minute'],\
-        hour=configParsing()['hour'])
-
-    sched.start()
diff --git a/src/wallpyper.py b/src/wallpyper.py
new file mode 100755
index 0000000..d3b36a4
--- /dev/null
+++ b/src/wallpyper.py
@@ -0,0 +1,15 @@
+#!/usr/bin/python3
+
+from wallpyperFuncs import *
+
+def main():
+    if len(sys.argv) == 2 and sys.argv[1] in ("help","--help","-h"):
+        printHelpInfo()
+    else:
+        if len(sys.argv) == 1: setTheme()
+        elif len(sys.argv) == 2 and sys.argv[1] in ("quit", "stop"): killLastSession(); sys.exit(0)
+        elif len(sys.argv) == 3 and sys.argv[1] == "set": setTheme(sys.argv[2])
+        else: printHelpInfo()
+
+if __name__ == '__main__':
+    main()
diff --git a/src/wallpyperFuncs.py b/src/wallpyperFuncs.py
new file mode 100644
index 0000000..87f0cc8
--- /dev/null
+++ b/src/wallpyperFuncs.py
@@ -0,0 +1,106 @@
+import pytomlpp
+import os 
+import random
+import sys
+from time import sleep
+from threading import Thread
+
+
+def printHelpInfo():
+    print("""Usage: wallpyper [command]
+Commands:
+    quit, stop              shutdown wallpyper
+    set <theme>             set <theme> theme
+    help, --help, -h        print this information""")
+
+def runCommand(commandName, output=False):
+    if output:
+        os.system(commandName)
+    else:
+        os.system(commandName + ">/dev/null")
+
+
+def killBack4():
+    '''
+    back4.sh will output artifacts if run more 2 processes
+    It function read PID in /tmp/back4.sh.pid, and kill process.
+    '''
+    try:
+        with open('/tmp/back4.sh.pid','r') as file:
+            for pid in file:
+                runCommand(f'kill {pid}')
+    except FileNotFoundError:
+        pass
+
+def killLastSession():
+    killBack4()
+
+    try:
+        with open('/tmp/wallpyper.pid','r') as file:
+            for pid in file:
+                runCommand(f'kill {pid}')
+    except FileNotFoundError:
+        pass
+    
+    with open('/tmp/wallpyper.pid','w') as file:
+        file.write(str(os.getpid()))
+
+
+def getConfig():
+    configFileName = os.path.expanduser('~')+'/.config/wallpyper/config.toml'
+    
+    with open(configFileName) as file: return pytomlpp.loads(file.read())
+
+
+def setWallpaper(wallpaperName):
+    killBack4()
+    if wallpaperName[-4:] != '.gif':
+        runCommand(f'feh --bg-scale "{wallpaperName}"')
+    else:
+        runCommand(f'back4.sh auto "{wallpaperName}" & echo $! > /tmp/back4.sh.pid',True)
+        # > tmp/back4.sh.pid write PID for kill()
+
+
+def setRandomWallpaper(path):
+    wallpaperName = path+random.choices(os.listdir(path))[0]
+    setWallpaper(wallpaperName)
+
+
+def setDinamicWallpaper(path, delay):
+    while True:
+        setRandomWallpaper(path)
+        sleep(delay)
+
+
+def setTheme(themeName = None):
+    killLastSession()
+
+    config = getConfig()
+
+    if themeName == None:
+        themeName = config["default_theme"]
+
+    
+    theme = config[themeName]
+
+    if theme["type"] == "static":
+        try: 
+            if theme["random"]: setRandomWallpaper(theme["path"])
+            else: setWallpaper(theme["url"])
+        except KeyError:
+            setWallpaper(theme["url"])
+    
+    elif theme["type"] == "dinamic":
+        delay = list(map(int,theme["delay"].split(":")))
+        delay.reverse()
+        while len(delay) < 3:
+            delay.append(0)
+
+        delay = delay[0] + delay[1]*60 + delay[2]*3600
+
+        wallpyperThread = Thread(target=setDinamicWallpaper, args=(theme["path"],delay,))
+        wallpyperThread.start()
+    
+    else:
+        printHelpInfo()
+        sys.exit(0)
\ No newline at end of file