diff --git a/audiotrim.sh b/audiotrim.sh
old mode 100755
new mode 100644
diff --git a/ddusb.py b/ddusb.py
old mode 100755
new mode 100644
index 7131622..9d3a83f
--- a/ddusb.py
+++ b/ddusb.py
@@ -2,36 +2,37 @@
 """Write an ISO image to a usb drive using dd."""
 
 import argparse
-import configparser
 import pathlib
 import subprocess
 
-# TODO add a config file for blacklisting certain devices e.g. /dev/sda
+if __name__ == '__main__':
+    parser = argparse.ArgumentParser()
+    parser.add_argument("-b", "--bs",
+                        default=512,
+                        help="block size",
+                        metavar="bs")
+    parser.add_argument("input_file", help="input file to write")
+    parser.add_argument("output_file", help="output block device")
+    args = parser.parse_args()
 
-parser = argparse.ArgumentParser()
-parser.add_argument("-b", "--bs", default=512, help="block size", metavar="bs")
-parser.add_argument("input_file", help="input file to write")
-parser.add_argument("output_file", help="output block device")
-args = parser.parse_args()
+    block_size = args.bs
+    input_file = args.input_file
+    block_device = args.output_file
 
-block_size = args.bs
-input_file = args.input_file
-block_device = args.output_file
+    if not pathlib.Path(block_device).is_block_device():
+        print(f"Error: {block_device} is not a block device")
+        exit(1)
 
-if not pathlib.Path(block_device).is_block_device():
-    print(f"Error: {block_device} is not a block device")
-    exit(1)
+    print(f"Input file: {input_file}")
+    print(f"Block device: {block_device}")
+    print(f"Block size: {block_size}")
 
-print(f"Input file: {input_file}")
-print(f"Block device: {block_device}")
-print(f"Block size: {block_size}")
-
-try:
-    subprocess.run(["dd", f"if={input_file}",
-                    f"of={block_device}",
-                    f"bs={block_size}",
-                    "status=progress"], check=True)
-except subprocess.CalledProcessError:
-    exit(1)
-else:
-    subprocess.run(['sync'])
+    try:
+        subprocess.run(["dd", f"if={input_file}",
+                        f"of={block_device}",
+                        f"bs={block_size}",
+                        "status=progress"], check=True)
+    except subprocess.CalledProcessError:
+        exit(1)
+    else:
+        subprocess.run(['sync'])
diff --git a/drivetemp.py b/drivetemp.py
old mode 100755
new mode 100644
index b51b68e..f0267d8
--- a/drivetemp.py
+++ b/drivetemp.py
@@ -13,7 +13,11 @@ import argparse
 import pathlib
 import subprocess
 
+# ========== Constants ==========
+DUMP_CMD = ['skdump', '--temperature']
 
+
+# ========== Functions ==========
 def verify_device_node(query):
     """Check if query is a device node.
     :param query: input that refers to a device
@@ -31,11 +35,10 @@ def retrieve_smart_temp(device_node):
     :returns: output of skdump in mKelvin
     :rtype: float
     """
-    dump_cmd = subprocess.run(['sudo', 'skdump', '--temperature',
-                               device_node],
-                              capture_output=True,
-                              text=True)
-    return float(dump_cmd.stdout)
+    temp = subprocess.run(DUMP_CMD + device_node,
+                          capture_output=True,
+                          text=True).stdout
+    return float(temp)
 
 
 def convert_to_celsius(mkel_temp):
diff --git a/fless.sh b/fless.sh
old mode 100755
new mode 100644
index d26b9c1..37a61c8
--- a/fless.sh
+++ b/fless.sh
@@ -1,10 +1,10 @@
 #!/usr/bin/bash
 # fless - fuzzy find a file and run less on it
 # Dependencies
-#  - fd (soft)
-#  - fzf
+# - fd (soft)
+# - fzf
 
-_help() {
+help() {
 cat << EOF
 Usage: fless [-h|--help] [-b|--boot] [-d|--dir directory] [-e|--etc]
 Options:
@@ -58,7 +58,7 @@ while true; do
             continue
             ;;
         '-h'|'--help')
-            printHelp
+            help
             exit
             ;;
         --)