Parameters Shell parameters Variables Environment variables Arrays Array Variables Permissions Allow or Deny actions Redirection Spooling to and from files Pipes Redirect the output from one command as input for another
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.
Using brackets to Group and expand expressions Conditional Execution Chain commands to run one after another (AND/OR) Conditional expressions Arithmetic expressions Shell expansion and Pattern matching (Wildcards) Escape Chars, delimiters and Quotes Command Substitution
Working with the bash Shell:
Run a bash shell script vi editor vi commands Here docs Here documents Keyboard Cursor control - Cut & paste Job Control Suspend and resume a process .bashrc Startup files (Startup scripts and Aliases) .inputrc Startup files (Set Key bindings and Tab completion) Prompt Prompt variable ### Comment / Remark 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.