Improve log_cleaner

log_cleaner.py

@@ -3,7 +3,7 @@
 # 22/03/2022
 # tool script used to remove unwanted lines from log files
 #
-# usage ex: python log_cleaner.py file pattern
+# usage ex: python log_cleaner.py "+/-" file pattern
 #-------------------------------------------------------------------------------
 
 import sys
@@ -15,15 +15,27 @@ def main():
     input_file = io.open(sys.argv[1], "r", encoding="utf-8")
     output_file = io.open("new_" + sys.argv[1], "w", encoding="utf-8")
 
-    pattern = sys.argv[2]
+    inverter = sys.argv[2]
+    if inverter == "-":
+        exclude = True
+    else:
+        exclude = False
+
+    pattern = sys.argv[3]
     p = re.compile(r".*" + pattern + r".*")
 
     for line in input_file:
         val = re.search(p, line)
         if val:
+            if exclude:
                 pass
             else:
                 output_file.write(line)
+        else:
+            if exclude:
+                output_file.write(line)
+            else:
+                pass
 
     output_file.close()
     input_file.close()