Tag

Unix

2 articles tagged with "Unix"

Unix File Permissions (chmod) Explained with Octal

Understand chmod 755, 644, and octal permission digits. Read, write, execute bits for owner, group, and others.

5 June 2026

Learn octal (base 8) conversion to decimal and binary. Includes chmod examples, worked problems, and free online tools.

5 March 2026

Convert between binary, octal, decimal, and hexadecimal with step-by-step working.

Convert text to ASCII codes, binary, hex, and octal.

Add, subtract, and multiply binary numbers with column-by-column steps.

Calculate monthly EMI with full amortization schedule for Indian loans.

Add or remove GST with CGST/SGST breakdown for India.

Calculate exact age in years, months, and days from date of birth.