Command Line and Shell Scripting Questions

Practical skills using command line interfaces and writing simple shell scripts for automation and system administration across operating systems. For Linux this includes navigation and file operations, file permissions, process and service inspection, log viewing, package and systemctl management, common text processing and search utilities such as grep, find, sed, and awk, piping and redirection, environment variables, command substitution, and interactive use of editors and remote access tools. Shell scripting fundamentals include variables, conditionals, loops, functions, argument handling, basic debugging, and using bash to automate repetitive tasks. The scope also covers essential Windows command line and shell basics where relevant, including interactive commands, simple PowerShell cmdlets for process and service management, file and permission commands, and differences in syntax and environment when performing equivalent administrative tasks on Windows. Candidates may be evaluated on writing short scripts, composing command pipelines to accomplish tasks, and explaining tradeoffs between interactive commands and scripted automation.