Webgrafia

http://tldp.org/LDP/abs/html/index.html
https://ryanstutorials.net/bash-scripting-tutorial/
https://google.github.io/styleguide/shell.xml#Naming_Conventions
https://docs.python.org/2/library/decimal.html
https://docs.python.org/2/library/sys.html
https://www.tutorialspoint.com/python/python_command_line_arguments.htm https://stackoverflow.com/questions/5337070/how-can-i-get-a-files-permission-mask https://www.programcreek.com/python/example/1123/stat.S_IWUSR https://www.pythoncentral.io/pythons-range-function-explained/ https://www.pythonlearn.com/html-008/cfbook006.html https://www.tutorialspoint.com/python/python_functions.htm