Parameters Shell parameters Variables Environment variables Arrays Array Variables Redirection Spooling to and from files Pipes Redirect the output from one command as input for another
Looping constructs:
if-then-else Conditionally perform a command for Expand words, and execute commands until Execute commands (until error) while Execute commands
The break and continue builtins may be used to control loop execution.
Evaluating expressions:
Using brackets to Group and expand expressions Conditional Execution Conditional expressions Arithmetic expressions Shell expansion and Pattern matching (Wildcards) Escape Chars, delimiters and Quotes Command Substitution
Working with the bash Shell:
vi editor A one page reference to the vi editor Here docs Here documents Keyboard Cursor control - Cut & paste Job Control Suspend and resume a process Prompt Prompt variable ### Comment / Remark Scripts Writing Shell Scripts BashBangSplat Pronunciation guide for unix
Note that wherever a `;' appears in the description of a command's syntax, it may be replaced with one or more newlines.
For examples of all the above see my recommended Linux books
