Ruby was created in 1995, which is about twenty-six years ago, by Yukihiro Matsumoto.
His aim when designing the language, was to create a scripting language, so scripting as in open this, read that, close this, so scripting as in a language, which is more human readable, and simpler to…
While trying to use certbot, and if you face the error:
pkg_resources.DistributionNotFound: The 'chardet' distribution was not found and is required by acme
This means that you need to install
chardet, which can be done by issuing:
sudo pip3 install chardet
If you are using macOS, make sure that pip3 is the one of
python3.9, so if you are using macports issue:
sudo port install py39-pip
sudo port select --set pip3 pip39
Everything in python is an object. An object has a type, which defines its attributes and methods. For example the
str type, define the attributes and methods for a string object. …
By default, the
apropos command, searches the
mandb database, keys and values, in a case insensitive way, using regular expressions.
bind -> "- 2 2 1557252946 0 A - - gz bind a name to a socket"
# The database, that apropos searches
# in, contains keys and values.
whatis is used to search in a case insensitive way, the
mandb database, for the name of a command, a library function, or a system call… in order to display its description.
whatis only searches the database keys, and not the description associated with these keys.
bind -> "- 2…
Historically, when unix was brought into life, and in order to explain its capabilities and features, a user manual was created.
This manual was divided into sections, each of which explained a specific topic, such as user commands, function calls, system calls, by providing individual pages, the man pages, which…
An arm processor, can switch and operate on multiple instruction sets. Some of the instruction sets, that an arm processor can operate on, are
thumb, which is a
16 bit instruction set,
thumb2 which combines
32 bit instructions,
aarch32 also known as
arm , and is…