help.sh

# help - custom reminder function for your .bashrc or .zshrc file
help() {
    echo "Feeling forgetful are we?\n"
    echo "| Command          | Description"
    echo "|------------------|-------------"
    echo "| man <tool>       | Opens man pages for the specified tool."
    echo "| <tool> -h        | Prints the help page of the tool."
    echo "| apropos <keyword>| Searches through man pages' descriptions for instances of a given keyword."
    echo "| cat              | Concatenate and print files."
    echo "| whoami           | Displays current username."
    echo "| id               | Returns users identity."
    echo "| hostname         | Sets or prints the name of the current host system."
    echo "| uname            | Prints operating system name."
    echo "| pwd              | Returns working directory name."
    echo "| ifconfig         | The 'ifconfig' utility is used to assign or view an address to a network interface and/or configure network interface parameters."
    echo "| ip               | Ip is a utility to show or manipulate routing, network devices, interfaces, and tunnels."
    echo "| netstat          | Shows network status."
    echo "| ss               | Another utility to investigate sockets."
    echo "| ps               | Shows process status."
    echo "| who              | Displays who is logged in."
    echo "| env              | Prints environment or sets and executes a command."
    echo "| lsblk            | Lists block devices."
    echo "| lsusb            | Lists USB devices."
    echo "| lsof             | Lists opened files."
    echo "| lspci            | Lists PCI devices."
    echo "| sudo             | Execute command as a different user."
    echo "| su               | The 'su' utility requests appropriate user credentials via PAM and switches to that user ID (the default user is the superuser)."
    echo "| useradd          | Creates a new user or update default new user information."
    echo "| userdel          | Deletes a user account and related files."
    echo "| usermod          | Modifies a user account."
    echo "| addgroup         | Adds a group to the system."
    echo "| delgroup         | Removes a group from the system."
    echo "| passwd           | Changes user password."
    echo "| dpkg             | Install, remove and configure Debian-based packages."
    echo "| apt              | High-level package management command-line utility."
    echo "| aptitude         | Alternative to 'apt'."
    echo "| snap             | Install, remove and configure snap packages."
    echo "| gem              | Standard package manager for Ruby."
    echo "| pip              | Standard package manager for Python."
    echo "| git              | Revision control system command-line utility."
    echo "| systemctl        | Command-line based service and systemd control manager."
    echo "| ps               | Prints a snapshot of the current processes."
    echo "| journalctl       | Query the systemd journal."
    echo "| kill             | Sends a signal to a process."
    echo "| bg               | Puts a process into background."
    echo "| jobs             | Lists all processes that are running in the background."
    echo "| fg               | Puts a process into the foreground."
    echo "| curl             | Command-line utility to transfer data from or to a server."
    echo "| wget             | An alternative to 'curl' that downloads files from FTP or HTTP(s) server."
    echo "| python3 -m http.server | Starts a Python3 web server on TCP port 8000."
    echo "| ls               | Lists directory contents."
    echo "| cd               | Changes the directory."
    echo "| clear            | Clears the terminal."
    echo "| touch            | Creates an empty file."
    echo "| mkdir            | Creates a directory."
    echo "| tree             | Lists the contents of a directory recursively."
    echo "| mv               | Move or rename files or directories."
    echo "| cp               | Copy files or directories."
    echo "| nano             | Terminal based text editor."
    echo "| which            | Returns the path to a file or link."
    echo "| find             | Searches for files in a directory hierarchy."
    echo "| updatedb         | Updates the locale database for existing contents on the system."
    echo "| locate           | Uses the locale database to find contents on the system."
    echo "| more             | Pager that is used to read STDOUT or files."
    echo "| less             | An alternative to 'more' with more features."
    echo "| head             | Prints the first ten lines of STDOUT or a file."
    echo "| tail             | Prints the last ten lines of STDOUT or a file."
    echo "| sort             | Sorts the contents of STDOUT or a file."
    echo "| grep             | Searches for specific results that contain given patterns."
    echo "| cut              | Removes sections from each line of files."
    echo "| tr               | Replaces certain characters."
    echo "| column           | Command-line based utility that formats its input into multiple columns."
    echo "| awk              | Pattern scanning and processing language."
    echo "| sed              | A stream editor for filtering and transforming text."
    echo "| wc               | Prints newline, word, and byte counts for a given input."
    echo "| chmod            | Changes permission of a file or directory."
    echo "| chown            | Changes the owner and group of a file or directory."
}