Secure erase

-- Function to check if a file contains a specific word or number
local function fileContains(filePath, pattern)
    local file = fs.open(filePath, "r")
    if file then
        local content = file.readAll()
        file.close()
        if string.find(content, pattern) then
            return true
        end
    end
    return false
end

-- Function to recursively search through directories for files containing the pattern
local function searchDirectory(directoryPath, pattern, filesToDelete)
    for _, item in ipairs(fs.list(directoryPath)) do
        local itemPath = directoryPath .. "/" .. item
        if fs.isDir(itemPath) then
            searchDirectory(itemPath, pattern, filesToDelete)
        else
            if item ~= "System" and fileContains(itemPath, pattern) then
                table.insert(filesToDelete, itemPath)
            end
        end
    end
end

-- Main program
local function main()
    local searchPattern = "yourWordOrNumber" -- Change this to the word or number you are searching for
    local directoriesToSearch = {"/disk", "/recovery"}
    local filesToDelete = {}

    -- Iterate through the specified directories
    for _, directory in ipairs(directoriesToSearch) do
        if fs.exists(directory) and fs.isDir(directory) then
            searchDirectory(directory, searchPattern, filesToDelete)
        end
    end

    -- If no files found, inform the user and exit
    if #filesToDelete == 0 then
        print("No files containing the pattern were found.")
        return
    end

    -- Show the list of files to delete
    print("The following files contain the pattern and will be deleted:")
    for _, file in ipairs(filesToDelete) do
        print(file)
    end

    -- Ask for confirmation
    print("Do you want to delete these files? (yes/no)")
    local response = read()

    if response == "yes" then
        -- Delete the files
        for _, file in ipairs(filesToDelete) do
            fs.delete(file)
        end
        print("Files deleted.")
    else
        print("Deletion aborted.")
    end
end

-- Run the main program
main()