diff --git a/src/common.py b/src/common.py
index cddcb42..eba50e7 100644
--- a/src/common.py
+++ b/src/common.py
@@ -4,7 +4,19 @@
 import datetime
 
 
-db_file = 'db.csv'
+DB_FILE = 'db.csv'
+
+
+LOG_LEVELS = {
+    'NONE': 0,
+    'ERROR': 1,
+    'WARNING': 2,
+    'SUCCESS': 3,
+    'INFO': 4,
+}
+
+
+LOG_LEVEL = LOG_LEVELS['INFO']
 
 
 def read_csv(filename):
@@ -47,7 +59,8 @@ def log_happy(msg):
     Args:
         msg (str): Happy message
     """
-    print(f'{colorama.Fore.GREEN}{datetime.datetime.now()} [SUCCESS] {msg}{colorama.Style.RESET_ALL}')
+    if LOG_LEVEL >= LOG_LEVELS['SUCCESS']:
+        print(f'{colorama.Fore.GREEN}{datetime.datetime.now()} [SUCCESS] {msg}{colorama.Style.RESET_ALL}')
 
 
 def log_info(msg):
@@ -56,7 +69,8 @@ def log_info(msg):
     Args:
         msg (str): Info message
     """
-    print(f'{colorama.Style.RESET_ALL}{datetime.datetime.now()} [INFO] {msg}{colorama.Style.RESET_ALL}')
+    if LOG_LEVEL >= LOG_LEVELS['INFO']:
+        print(f'{colorama.Style.RESET_ALL}{datetime.datetime.now()} [INFO] {msg}{colorama.Style.RESET_ALL}')
 
 
 def log_warning(msg):
@@ -65,7 +79,8 @@ def log_warning(msg):
     Args:
         msg (str): Warning message
     """
-    print(f'{colorama.Fore.YELLOW}{datetime.datetime.now()} [WARNING] {msg}{colorama.Style.RESET_ALL}')
+    if LOG_LEVEL >= LOG_LEVELS['WARNING']:
+        print(f'{colorama.Fore.YELLOW}{datetime.datetime.now()} [WARNING] {msg}{colorama.Style.RESET_ALL}')
 
 
 def log_error(msg):
@@ -74,4 +89,5 @@ def log_error(msg):
     Args:
         msg (str): Error message
     """
-    print(f'{colorama.Fore.RED}{datetime.datetime.now()} [ERROR] {msg}{colorama.Style.RESET_ALL}')
\ No newline at end of file
+    if LOG_LEVEL >= LOG_LEVELS['ERROR']:
+        print(f'{colorama.Fore.RED}{datetime.datetime.now()} [ERROR] {msg}{colorama.Style.RESET_ALL}')
\ No newline at end of file
diff --git a/src/db_console.py b/src/db_console.py
index 4d994fe..ee23110 100644
--- a/src/db_console.py
+++ b/src/db_console.py
@@ -3,16 +3,16 @@
 
 
 def drop_by_ip(ip):
-    data = read_csv(db_file)
+    data = read_csv(DB_FILE)
     data = [x for x in data if x[0] != ip]
-    write_csv(data, db_file)
+    write_csv(data, DB_FILE)
     log_happy(f"Deleted {ip}")
 
 
 def drop_by_hostname(hostname):
-    data = read_csv(db_file)
+    data = read_csv(DB_FILE)
     data = [x for x in data if x[1] != hostname]
-    write_csv(data, db_file)
+    write_csv(data, DB_FILE)
     log_happy(f"Deleted {hostname}")
 
 
@@ -23,10 +23,10 @@ def insert_entry(ip, hostname, comment):
         return
     if not comment:
         comment = ""
-    data = read_csv(db_file)
+    data = read_csv(DB_FILE)
     new_data = pd.DataFrame([[ip, hostname, comment]], columns=["ipv4", "hostname", "comment"])
     data = pd.concat([data, new_data], ignore_index=True)
-    write_csv(data, db_file)
+    write_csv(data, DB_FILE)
     log_happy(f"Inserted \"{ip}\",\"{hostname}\",\"{comment}\"")
 
 
@@ -39,13 +39,13 @@ def insert_ip_list(filename, hostname, comment):
     if not filename:
         log_warning("Filename is required")
         return
-    data = read_csv(db_file)
+    data = read_csv(DB_FILE)
     new_data = pd.read_csv(filename, header=None, names=["ipv4"])
     new_data["hostname"] = hostname
     new_data["comment"] = comment
     log_info(f"Inserting {len(new_data)} IPs from {filename} with hostname \"{hostname}\" and comment \"{comment}\"")
     data = pd.concat([data, new_data], ignore_index=True)
-    write_csv(data, db_file)
+    write_csv(data, DB_FILE)
     log_happy(f"Inserted IPs from {filename}")
 
 
@@ -62,7 +62,7 @@ def drop(parameters, arguments):
     if 'comment' in parameters and 'comment-part' in parameters:
         log_warning("Cannot use both --comment and --comment-part")
         return
-    data_pick = read_csv(db_file)
+    data_pick = read_csv(DB_FILE)
     if 'ipv4' in parameters:
         data_pick = data_pick[data_pick['ipv4'] == arguments['ipv4']]
     if 'hostname' in parameters:
@@ -71,7 +71,7 @@ def drop(parameters, arguments):
         data_pick = data_pick[data_pick['comment'] == arguments['comment']]
     if 'comment-part' in parameters:
         data_pick = data_pick[data_pick['comment'].fillna('').str.contains(arguments['comment-part'])]
-    data_drop = read_csv(db_file)
+    data_drop = read_csv(DB_FILE)
     log_info(f"Dropping {len(data_pick)} entries")
     ans = None
     if len(data_pick) != 0:
@@ -81,7 +81,7 @@ def drop(parameters, arguments):
         log_info("Aborted")
         return
     data_drop = data_drop[~data_drop.isin(data_pick)].dropna()
-    write_csv(data_drop, db_file)
+    write_csv(data_drop, DB_FILE)
     log_happy(f"Dropped {len(data_pick)} entries")
     
 
diff --git a/src/make_amnezia.py b/src/make_amnezia.py
index 4edc909..ce215a7 100644
--- a/src/make_amnezia.py
+++ b/src/make_amnezia.py
@@ -1,7 +1,9 @@
 from common import *
 
+
 def make_amnezia():
-    data = read_csv(db_file)
+    log_info('make_amnezia: Starting')
+    data = read_csv(DB_FILE)
     # use ipv4 as hostname
     data['hostname'] = data['ipv4']
     # save only hostnames
@@ -9,6 +11,8 @@ def make_amnezia():
     json_data = data.to_dict(orient='records')
     write_json(json_data, 'out/amnezia_vpn.json')
     log_happy('Amnezia VPN tunneling file created')
+    log_info('make_amnezia: Finished')
+
 
 if __name__ == '__main__':
     make_amnezia()
\ No newline at end of file
diff --git a/src/maskt2ipv4.py b/src/maskt2ipv4.py
index 3be2360..16152f1 100644
--- a/src/maskt2ipv4.py
+++ b/src/maskt2ipv4.py
@@ -2,9 +2,10 @@
 from common import *
 
 def maskt2ipv4():
+    log_info('maskt2ipv4: Starting')
     cidr_count = 0
     converted_ip_count = 0
-    data = read_csv(db_file)
+    data = read_csv(DB_FILE)
     # if ipv4 contains / then it is a masked ip range
     masked = data[data['ipv4'].str.contains('/')]
     # convert masked ip range to list of ip addresses
@@ -24,8 +25,10 @@ def maskt2ipv4():
     data = data[~data['ipv4'].str.contains('/')]
     # append ip list to data
     data = pd.concat([data, pd.DataFrame(ip_list)], ignore_index=True)
-    write_csv(data, db_file)
+    write_csv(data, DB_FILE)
     log_happy('Converted {} masked IP ranges to {} IP addresses'.format(cidr_count, converted_ip_count))
+    log_info('maskt2ipv4: Finished')
+
 
 if __name__ == '__main__':
     maskt2ipv4()
diff --git a/src/sort_db.py b/src/sort_db.py
index 1dc2481..50435e0 100644
--- a/src/sort_db.py
+++ b/src/sort_db.py
@@ -4,6 +4,7 @@
 from os import listdir
 from os.path import isfile, join
 
+
 def drop_duplicates(data):
     log_info('drop_duplicates: Starting')
     # if there is ip address and CIDR that contains that address, remove solo ip address
@@ -24,15 +25,17 @@ def drop_duplicates(data):
     log_info('drop_duplicates: Finished')
     return data
 
+
 def sort_db():
     log_info('sort_db: Starting')
-    data = read_csv(db_file)
+    data = read_csv(DB_FILE)
     data = data.sort_values(by=['hostname'])
     data = drop_duplicates(data)
-    write_csv(data, db_file)
+    write_csv(data, DB_FILE)
     log_happy('Database sorted')
     log_info('sort_db: Finished')
 
+
 def drop_duplicates_in_known(data):
     log_info("drop_duplicates_in_known: Starting")
     original_data = data.copy()
@@ -61,6 +64,7 @@ def drop_duplicates_in_known(data):
     log_info("drop_duplicates_in_known: Finished")
     return data
 
+
 def sort_known():
     log_info("sort_known: Starting")
     onlyfiles = [f for f in listdir('in/known') if isfile(join('in/known', f))]
diff --git a/src/sort_readme.py b/src/sort_readme.py
index 5592262..635f5ab 100644
--- a/src/sort_readme.py
+++ b/src/sort_readme.py
@@ -2,7 +2,9 @@
 # catch <div id="auto-sort-start"/> and <div id="auto-sort-end"/> in README.md
 # sort the lines between them alphabetically
 
+
 def sort_readme():
+    log_info('sort_readme: Starting')
     with open('README.md', 'r') as f:
         readme = f.readlines()
     start = readme.index('<div id="auto-sort-start"/>\n') + 1
@@ -11,6 +13,8 @@ def sort_readme():
     with open('README.md', 'w') as f:
         f.writelines(sorted_readme)
     log_happy('README.md sorted')
+    log_info('sort_readme: Finished')
+
 
 if __name__ == '__main__':
     sort_readme()
\ No newline at end of file