Bash Quizzes (MCQs)Level 1 The Essentials Command Line FluencyFile System & Nav cd, ls, mkdir, rm, Globbing01_FS Permissions & Ownership chmod, chown, sudo, rwx modes02_PERM I/O Redirection stdin, stdout, stderr, Pipes (|)03_IO Environment $PATH, .bashrc, Aliases04_ENV Level 2 Scripting Core Logic & Control FlowStructure & Variables Shebang, Exit Codes, Substitution05_VARS Conditionals If/Else, Case, [[ ]] vs [ ]06_LOGIC Loops & Iteration For, While, Until, Break07_LOOP User I/O read, printf, positional params08_UIO Level 3 The Toolbelt Text Processing & Power ToolsBasic Filters cat, head, tail, sort, uniq, cut09_FILT The Big Three Grep (Regex), Sed, Awk basics10_TOOLS Level 4 Advanced Production-Grade ScriptingFunctions & Scope Local vs Global, Return values11_FUNC Math & Arrays $(( )), Indexed & Associative Arrays12_DATA Process Management Jobs, fg/bg, ps, kill, Signals13_PROC Debug & Error set -e, set -x, Traps14_DEBUG