Script to check a file

This script can be used to check a file and display the contents, pass
the filename as an argument.  It checks if it exists, is accessible if
so it displays the contents

Author: geekcomputers

check_file.py

@@ -0,0 +1,37 @@
+# Script Name	: check_file.py
+# Author		: Craig Richards
+# Created		: 20 May 2013 
+# Last Modified	: 
+# Version		: 1.0
+
+# Modifications	: 
+
+# Description	: Check a file exists and that we can read the file
+
+import sys		# Import the Modules
+import os		# Import the Modules
+
+# Readfile Functions which open the file that is passed to the script
+
+def readfile(filename):
+	f = open(filename, 'r')
+	line = f.read()
+	print line
+
+def main():
+  if len(sys.argv) == 2:		# Check the arguments passed to the script
+    filename = sys.argv[1]		# The filename is the first argument
+    if not os.path.isfile(filename):	# Check the File exists
+      print '[-] ' + filename + ' does not exist.'
+      exit(0)
+    if not os.access(filename, os.R_OK):	# Check you can read the file
+      print '[-] ' + filename + ' access denied'
+      exit(0)
+  else:
+    print '[-] Usage: ' + str(sys.argv[0]) + ' <filename>' # Print usage if not all parameters passed/Checked
+    exit(0)
+  print '[+] Reading from : ' + filename	# Display Message and read the file contents
+  readfile(filename)
+  
+if __name__ == '__main__':
+  main()