Start the console and try some commands. If this works, you have Bash installed and you can find help for any command. If you can't run this on your PC, you can try on replit.com website. However, on this website the help for man command is not available.
~>bash bash-3.2$ type man man is /usr/bin/man bash-3.2$ man -h man, version 1.6g usage: man [-adfhktwW] [section] [-M path] [-P pager] [-S list] [-m system] [-p string] name ... a : find all matching entries c : do not use cat file d : print gobs of debugging information D : as for -d, but also display the pages f : same as whatis(1) h : print this help message k : same as apropos(1) K : search for a string in all pages t : use troff to format pages for printing w : print location of man page(s) that would be displayed (if no name given: print directories that would be searched) W : as for -w, but display filenames only C file : use `file' as configuration file M path : set search path for manual pages to `path' P pager : use program `pager' to display pages S list : colon separated section list m system : search for alternate system's man pages p string : string tells which preprocessors to run e - [n]eqn(1) p - pic(1) t - tbl(1) g - grap(1) r - refer(1) v - vgrind(1) bash-3.2$
Is out of scope in this tutorial to post help for Bash commands. You can find this in reference manuals. Here we list all the commands we found so far in the documentation of Bash 7.3 in alphabetic order with a short description.
|Command||Description||:||Returns a zero exit value||.||Reads and executes commands from a file parameter and then returns.||break||Exits from the enclosing for, while, or until command loops, if any.||cd||Changes the current directory to the specified directory.||continue||Resumes the next iteration of the enclosing for, while, or until command loops.||echo||Writes character strings to standard output.||eval||Reads the arguments as input to the shell and executes the resulting command or commands.||exec||Executes the command specified by the Argument parameter, instead of this shell, without creating a new process.||exit||Exits the shell whose exit status is specified by the n parameter.||export||Marks names for automatic export to the environment of subsequently executed commands.||hash||Finds and remembers the location in the search path of specified commands.||pwd||Displays the current directory.||read||Reads one line from standard input.||readonly||Marks name specified by Name parameter as read-only.||return||Causes a function to exit with a specified return value.||set||Controls the display of various parameters to standard output.||shift||Shifts command-line arguments to the left.||test||Evaluates conditional expressions.||times||Displays the accumulated user and system times for processes run from the shell.||trap||Runs a specified command when the shell receives a specified signal or signals.||type||Interprets how the shell would interpret a specified name as a command name.||ulimit||Displays or adjusts allocated shell resources.||umask||Determines file permissions.||unset||Removes the variable or function corresponding to a specified name.||wait||Waits for the specified child process to end and reports its termination status.|
You can learn and use the commands one by one when you need them. An effective ussage of commands require understanding of computer architecture, operating system design and file system. These things are explained in previous chapters of Software Engineering. I asume you know these topics.
You can learn how to use each command in the: Commands for AIX, documentation listed by IBM. I advise you to study this list in details and memorise several most important commands. In next articles we will use examples for some of these commands.
Read next: Command Groups