A module called os<\/i> lets you interact with the operating system using Python<\/b>.\u00a0It provides functions that are available on Unix and\/or Windows systems. If you’re familiar with the command console, you’ll see that some functions give the same results as the commands available on the operating systems.<\/p>\n
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1. The Unfortunately, the <\/p>\n 2. The <\/p>\n 3. The Note<\/b>: If the directory exists, a To change the directory permissions, you can use the <\/p>\n 4. The NOTE:<\/b> The equivalent of the makedirs<\/i> function on Unix systems is the mkdir<\/i> command with the -p<\/i> flag, while in Windows, simply the mkdir<\/i> command with the path:<\/p>\n <\/p>\n 5. The result of the It’s important to remember that the <\/p>\n 6.\u00a0To move between directories, you can use a function called <\/p>\n 7. If you want to find out what the current working directory is, you can use the NOTE:<\/b> On Unix-like systems, the equivalent of the getcwd<\/i> function is the pwd<\/i> command, which prints the name of the current working directory.<\/p>\n <\/p>\n 8. To remove a directory, you can use the To remove a directory and its subdirectories, use the <\/p>\n 9. On both Unix and Windows, you can use the The <\/p>\n Exercise 1<\/em><\/p>\n What is the output of the following snippet if you run it on Unix?<\/p>\n <\/p>\n Exercise 2<\/em><\/p>\n What is the output of the following snippet?<\/p>\n <\/p>\n <\/p>\n Ex. 3<\/p>\n What is a possible output from the code snippet below :<\/p>\n <\/p>\nuname()<\/code> <\/strong>function returns an object that contains information about the current operating system. The object has the following attributes:<\/p>\n\n
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import os\r\nprint(os.uname())<\/pre>\n
uname() <\/code>function only works on some Unix systems. If you use Windows, you can use the uname<\/i> function in the platform<\/i> module, which returns a similar result.<\/p>\nname <\/code><\/strong>attribute available in the os<\/code> module allows you to distinguish the operating system. It returns one of the following three values:<\/p>\n\n
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import os\r\nprint(os.name)<\/pre>\n
mkdir()<\/strong><\/code> function creates a directory in the path passed as its argument. The path can be either relative or absolute, e.g:<\/p>\nimport os\r\n\r\nos.mkdir(\"hello\") # the relative path\r\nos.mkdir(\"\/home\/python\/hello\") # the absolute path\r\n\r\n<\/pre>\n
FileExistsError<\/code> exception will be thrown.<\/p>\nchmod() <\/code>function, which works similarly to the chmod<\/i> command on Unix systems.<\/p>\nmakedirs()<\/code> <\/strong>function enables recursive directory creation, which means that all directories in the path will be created.<\/p>\nimport os\r\n\r\nos.makedirs(\"my_first_directory\/my_second_directory\")\r\nos.chdir(\"my_first_directory\")\r\nprint(os.listdir())<\/pre>\n
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mkdir -p my_first_directory\/my_second_directory<\/code><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n
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mkdir my_first_directory\/my_second_directory<\/code><\/li>\n<\/ul>\n<\/li>\n<\/ul>\nlistdir()<\/code><\/strong> function is a list containing the names of the files and directories that are in the path passed as its argument.<\/p>\nlistdir()<\/code> function omits the entries ‘.’ and ‘..’, which are displayed, for example, when using the ls -a<\/code> command on Unix systems. If the path isn’t passed, the result will be returned for the current working directory.<\/p>\nimport os\r\n\r\nos.mkdir(\"my_first_directory\")\r\nprint(os.listdir())\r\n<\/pre>\n
chdir()<\/strong><\/code>, which changes the current working directory to the specified path. As its argument, it takes any relative or absolute path.<\/p>\ngetcwd()<\/code><\/strong> function, which returns the path to it.<\/p>\nimport os\r\n\r\nos.makedirs(\"my_first_directory\/my_second_directory\")\r\nos.chdir(\"my_first_directory\")\r\nprint(os.getcwd())\r\nos.chdir(\"my_second_directory\")\r\nprint(os.getcwd())\r\n<\/pre>\n
rmdir()<\/strong><\/code> function.<\/p>\nimport os\r\n\r\nos.mkdir(\"my_first_directory\")\r\nprint(os.listdir())\r\nos.rmdir(\"my_first_directory\")\r\nprint(os.listdir())<\/pre>\n
removedirs()<\/strong><\/code> function.<\/p>\nimport os\r\n\r\nos.makedirs(\"my_first_directory\/my_second_directory\")\r\nos.removedirs(\"my_first_directory\/my_second_directory\")\r\nprint(os.listdir())\r\n\r\n<\/pre>\n
system()<\/code> function, which executes a command passed to it as a string, e.g.:<\/p>\nimport os\r\n\r\nreturned_value = os.system(\"mkdir hello\")\r\n\r\n<\/pre>\n
system<\/code> function on Windows returns the value returned by shell after running the command given, while on Unix it returns the exit status of the process. Exit status 0<\/code> indicates success on Unix systems.<\/p>\nimport os \r\nprint(os.name)<\/pre>\n
posix<\/code><\/p>\nimport os\r\n\r\nos.mkdir(\"hello\")\r\nprint(os.listdir())<\/pre>\n
['hello']<\/code><\/p>\nfrom platform import machine\r\nprint(machine())<\/pre>\n
AMD64<\/code><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n