level1_questions.py

level1_questions = [
    {
        "question": "What command lists files in a directory?",
        "options": ["ls", "cd", "pwd"],
        "answer": "ls",
        "explanation": "The 'ls' command is used to list directory contents. It can be used with various options like '-l' for long format, '-a' to show hidden files, or '-h' for human-readable file sizes."
    },
    {
        "question": "How do you create a new directory?",
        "options": ["mkdir", "rmdir", "touch"],
        "answer": "mkdir",
        "explanation": "The 'mkdir' command creates new directories. You can create multiple directories at once or use the '-p' option to create parent directories as needed."
    },
    {
        "question": "Which command is used to change the current directory?",
        "options": ["cd", "pwd", "mv"],
        "answer": "cd",
        "explanation": "The 'cd' (change directory) command is used to navigate the file system. You can use '..' to move up one directory or '/' to move to the root directory."
    },
    {
        "question": "How do you display the current working directory?",
        "options": ["pwd", "ls", "cd"],
        "answer": "pwd",
        "explanation": "The 'pwd' (print working directory) command shows the full path of the current directory you are in."
    },
    {
        "question": "Which command is used to remove a file?",
        "options": ["rm", "rmdir", "mv"],
        "answer": "rm",
        "explanation": "The 'rm' command is used to delete files. Use it with caution as it will permanently remove files."
    },
    {
        "question": "How can you display the content of a file in the terminal?",
        "options": ["cat", "ls", "rm"],
        "answer": "cat",
        "explanation": "The 'cat' command is used to display the contents of a file. It can also be used to concatenate multiple files and display their combined output."
    },
    {
        "question": "Which command is used to copy files or directories?",
        "options": ["cp", "mv", "rm"],
        "answer": "cp",
        "explanation": "The 'cp' command is used to copy files or directories from one location to another."
    },
    {
        "question": "What command is used to move or rename files?",
        "options": ["mv", "cp", "rm"],
        "answer": "mv",
        "explanation": "The 'mv' command is used to move files from one directory to another or to rename files. Unlike 'cp', it does not duplicate the file."
    },
        {
        "question": "Which command is used to view the first few lines of a file?",
        "options": ["head", "tail", "cat"],
        "answer": "head",
        "explanation": "The 'head' command is used to display the first few lines of a file. By default, it shows the first 10 lines, but you can customize the number with the '-n' option."
    },
    {
        "question": "What command is used to view the last few lines of a file?",
        "options": ["tail", "head", "grep"],
        "answer": "tail",
        "explanation": "The 'tail' command is used to display the last few lines of a file. By default, it shows the last 10 lines, but you can use the '-n' option to change the number of lines displayed."
    },
    {
        "question": "How can you search for a specific pattern in a file?",
        "options": ["grep", "find", "sed"],
        "answer": "grep",
        "explanation": "The 'grep' command is used to search for a specific pattern in a file or output. It supports regular expressions and various options for refining the search."
    },
    {
        "question": "Which command is used to change file permissions?",
        "options": ["chmod", "chown", "mv"],
        "answer": "chmod",
        "explanation": "The 'chmod' command is used to change the permissions of a file or directory. You can use symbolic or numeric modes to specify permissions for the owner, group, and others."
    },
    {
        "question": "How do you display all currently running processes?",
        "options": ["ps", "top", "kill"],
        "answer": "ps",
        "explanation": "The 'ps' command displays information about currently running processes. It can show a snapshot of current processes with options like '-e' for all processes and '-f' for a full-format listing."
    }
]