diff --git a/gitools/gitools.py b/gitools/gitools.py
index c6073c1..225d2ea 100644
--- a/gitools/gitools.py
+++ b/gitools/gitools.py
@@ -1,7 +1,8 @@
 import argparse
-from os import path
 from typing import List
+from os import path, _exit
 from .module import Module
+from .utils.editor import Editor
 from .utils.utilities import Utilities
 from .utils.option_selector import OptionSelector
 from .modules.update_date import UpdateDateModule
@@ -18,6 +19,8 @@
 
 
 def main():
+    checkRequirements()
+
     try:
         parser = argparse.ArgumentParser()
         parser.add_argument(
@@ -116,4 +119,18 @@ def selectModule(args, module: Module):
                 "Enter a valid index or run with like following command\r\n> gitools -m uh"
             )
             print()
-            selectModule(args, module)
\ No newline at end of file
+            selectModule(args, module)
+
+
+def checkRequirements():
+    if not Utilities.gitExisted():
+        print("There is no git to use :(\r\nplease install git then retry :D")
+        _exit(1)
+    if len(Utilities.findShell()) == 0:
+        print("There is no shell application to use :(")
+        _exit(1)
+    if len(Editor.findEditor()) == 0:
+        print(
+            "There is no text editor to use :(\r\nplease install nano or vim then retry :D"
+        )
+        _exit(1)
\ No newline at end of file
diff --git a/gitools/module.py b/gitools/module.py
index ac9447c..719a726 100644
--- a/gitools/module.py
+++ b/gitools/module.py
@@ -23,7 +23,7 @@ def __init__(
         commit_message,
     ):
         if commit_count is None:
-            commit_count = 10
+            commit_count = self.getDefaultCommitCount()
 
         self.commits = []
         self.commit_hash = commit_hash
@@ -82,11 +82,16 @@ def getCommits(self):
 
         out = out.decode("utf-8")
 
-        return re.findall(
-            r"commit\s([a-zA-Z0-9]*)(.*)\nAuthor:\s*([^<]*)<(.*)>\nDate:\s*(.*)\n\n\s*(.*)",
+        commits = re.findall(
+            r"commit\s([a-zA-Z0-9]*)(.*)\nAuthor:\s*([^<]*)<(.*)>\nDate:\s*(.*)\n\n(.*\n{0,1}.*)",
             out,
         )
 
+        return [c[:-1] + (c[5].replace("    ", ""),) for c in commits]
+
+    def getDefaultCommitCount(self):
+        return min(500, int(self.excuteCommand("git rev-list --count HEAD")[0]))
+
     @staticmethod
     def hasBackup():
         return path.exists(path.join(Utilities.cwd, ".git", "refs", "original"))
diff --git a/gitools/utils/editor.py b/gitools/utils/editor.py
index 37a0155..17eda30 100644
--- a/gitools/utils/editor.py
+++ b/gitools/utils/editor.py
@@ -66,4 +66,6 @@ def findEditor():
                 if os.path.exists(editorPath):
                     return [editorPath, "-n"]
         except:
-            pass
\ No newline at end of file
+            pass
+
+        return []
\ No newline at end of file
diff --git a/gitools/utils/utilities.py b/gitools/utils/utilities.py
index 482fa94..e408125 100644
--- a/gitools/utils/utilities.py
+++ b/gitools/utils/utilities.py
@@ -10,6 +10,23 @@ class Utilities:
     def ellipsis(input, length):
         return textwrap.shorten(input, width=length, placeholder="...")
 
+    @staticmethod
+    def gitExisted():
+        try:
+            process = subprocess.Popen(
+                ["git"],
+                stderr=subprocess.PIPE,
+                stdin=subprocess.DEVNULL,
+                stdout=subprocess.DEVNULL,
+            )
+            _, err = process.communicate()
+            if not err:
+                return True
+        except:
+            pass
+
+        return False
+
     @staticmethod
     def findShell():
         try:
@@ -59,6 +76,8 @@ def findShell():
         except:
             pass
 
+        return []
+
     @staticmethod
     def clearConsole():
         os.system("cls" if os.name == "nt" else "clear")
diff --git a/setup.py b/setup.py
index 815a45a..b847064 100644
--- a/setup.py
+++ b/setup.py
@@ -6,7 +6,7 @@
 
 setup(
     name="Gitools",
-    version="1.5.0",
+    version="1.5.1",
     license="MIT",
     author="AliReza Beigy",
     author_email="AliRezaBeigyKhu@gmail.com",