The Shell Prompt Description and Help Pages of a command - Linux

NOTES

<username>@<hostname><current working directory>$

!usersworkspace.png

Satvik - Username

Satvik - Hostname

~ indicates home directory and it is default for everyone

$ - will tell that user is not logged in as root user nor have privileged permissions

# - indicates that user is logged in as a root user and have privileged permssions

!root_user.png

In addition to providing basic information like the current user and
working directory, we can customize to display other information in the
prompt, such as the IP address, date, time, the exit status of the last
command, and more. This is especially useful for us during our
penetration tests because we can use various tools and possibilities
like
script or the .bash_history to filter and
print all the commands we used and sort them by date and time. For
example, the prompt could be set to display the full path of the current
working directory instead of just the current directory name, which can
also include the target’s IP address if we work organized.

The prompt can be customized using special characters and variables in the shell’s configuration file (.bashrc for the Bash shell). For example, we can use: the \u character to represent the current username, \h for the hostname, and \w for the current working directory.

.
Special Character Description
\d Date (Mon Feb 6)
\D{%Y-%m-%d} Date (YYYY-MM-DD)
\H Full hostname
\j Number of jobs managed by the shell
\n Newline
\r Carriage return
\s Name of the shell
\t Current time 24-hour (HH:MM:SS)
\T Current time 12-hour (HH:MM:SS)
\@ Current time
\u Current username
\w Full path of the current working directory

we can use https://bash-prompt-generator.org/ website to customize our own terminal description screen

Using MAN and APROPOS Commands:

Man is a tool in any linux based distro which will retrieve the manual page of the particular command / tool . In which we can learn and see the description of the command / tool and how to use it

!man_sudo.png

!manpage.png

As we can see that this is the Manual page of SUDO command
not only MAN , we can also get it by executing

sudo --help

it will retrieve the same info

!apropos.png