Web Reference: Given lines of credit card numbers, mask the first digits of each credit card number with an asterisk (i.e., *) and print the masked card number on a new line. Each credit card number consists of four space-separated groups of four digits. For example, the credit card number 1234 5678 9101 1234 would be masked and printed as **** **** **** 1234. Sedis a popular utility that enables quick parsing and transformation of text. Here are some basic uses for it: Substitute the first occurrence of editor with tool: Substitute all occurrences of editor with tool: Substitute the second occurrence of editor with tool: Highlight all occurrences of editor by enclosing them in curly brackets (i.e., {}): Jul 31, 2024 · HackerRank Sed command #4 problem solution in linux shell programming with practical program code example and complete full explanation
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Net Worth Profile Overview
Hackerrank Sed Command 4 Problem Net Worth 2026: Salary, Income & Wealth Net Worth & Biography

Estimated Worth: $82M - $88M
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Career Highlights & Achievements

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This section covers known assets, real estate holdings, luxury vehicles, and investment portfolios. Data is compiled from public records, financial disclosures, and verified media reports.
Last Updated: April 7, 2026
Net Worth Outlook & Future Earnings

Disclaimer: Disclaimer: Net Worth estimates are based on publicly available data, media reports, and financial analysis. Actual numbers may vary.








