Bash Basics for Cloud Computing

Learn practical bash basics for cloud computing, focusing on essential commands and tips, and how to use the text-based shell for files, programs, and scripts.

Learn to leverage terminal history to recall and reuse commands: scroll through history, use !! and !string, run specific entries, and search with ctrl-r to edit and re-execute.

turn bash commands into small scripts to automate repetitive tasks, use a bin directory, the shebang line, and executable permissions to run a hello world example.

Define and use bash variables in scripts, call them with a dollar sign, and echo their values. Use read to capture user input and reuse it in outputs.

Explore bash conditionals with if statements, the if-then-else-fi structure, and test expressions in [ ], using operators, illustrated by a height-check script that determines ride eligibility.

Explore curly brace expansion in Bash, printing numbers and letters, looping through sequences, and using variables to generate files with varied base names for automation.

Master the cat command, the go-to tool for concatenate and basic file manipulation in bash. Learn to create, view, overwrite, and append files, and combine multiple files with redirection.

Master the here document and here file redirections to create and populate scripts, using unique end tags and quoting to prevent variable and string expansion.

Explore bash regex basics and how regular expressions power text searches. Learn literals, character classes, anchors, and modifiers with examples like SSN, phone numbers, and emails using grep.

This course concludes by showing how bash basics equip you with essential tools for a cloud computing environment, proving bash isn’t scary and encouraging deeper exploration.