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Python3: Mutable, Immutable… everything is object! Introduction: We are going to see how to use id() and type() functions and what they told us. What are mutable and immutable objects, why does it matter and how differently does Python treat mutable and immutable objects. …

In programming, we use libraries to store common functions that will be used one or more time to gain time. There are two types of libraries: static libraries dynamic libraries Static Libraries : result of the linker making copy of all used library functions to the executable file. Program will…

A Shell provides you with an interface to the Unix system, executes commands read from the standard input or from a file stdout. Once executed, The shell starts to wait for your command. …

A Static library is an archive containing a collection of ordinary object files, inside the compiled program.Static library filenames usually have a “.a” extension You can create an object from a source file .c using gcc : gcc -c function1.c -o function1.o gcc -c function2.c -o function2.o After that you can create a static library containing the two functions: ar cr mystaticlibrary.a function1.o function2.o

What happens when you type gcc main.c gcc “Gnu Compiler Collection” is a tool that support many compiled languages as C, C++, Java. It is used to translate/transform from human reading language to binary processor language. when you type gcc main.c, gcc assume that your code is in a file named main.c. the compilation process include 4 steps : Preprocessor : Preprocessor is just a text substitution tool.

What is the difference between a hard link and a symbolic link? On linux systems, you can make links between files using the ‘ln’ command. You can create two types of links : symbolic link : it’s an alias, a shortcut to a regular file. hard link : it’s an additionnal name from an existing file, with the same inode. Without any…

“ls” is a Unix-like command used to print the content of a directory and list files. Without any options and argument the ls command list the content of the current directory sorted alphabetically. If you want to print files or folders containing specific string you can use the wildcard “*”. The asterisk means everything, so when you type“ls *.c” it means that you want to print all files or directory in the current directory which ends with “.c”.