In Linux, to check the port is in the open state, use the “telnet”, “netcat(nc)”, “nmap”, “netstat” or “/dev/tcp” command.

The wildcards to find the specific filename, the file starting or ending with a specific character, number, or extension, as explained in this guide.

Linux offers the “hexdump” command to visualize the contents of a file in a hexadecimal and ASCII, canonical, and custom format string.

In Linux, to list down the USB devices, use the “lsusb”, “dmesg”, “usb-devices”, “lsblk”, “df”, or “fdisk” utility in the terminal.

We can list GPG keys in Linux that help the users to view the information of public keys, secret keys, signatures, and fingerprints of the GPG keys.

Linux offers the pre-installed “df”, “lsblk”, “fsck”, “file”, “mount”, and “blkid” commands to determine the file system type of mounted devices/partitions.

To see all the IP addresses on your network, you can use the arp and nmap commands in Linux. Also, the third-party application, AngryIP, can be used.

The “cron” daemon is the built-in software utility that generally runs the process at a fixed time, day, date, or interval without any user interference.

For cron job scheduling, access the “crontab” file. It will automatically execute all the cron jobs after every minute, hour, weekday, month, and year.

To kill a process in Linux, the “kill”, “kilall”, “pkill”, “xkill” and “top” commands are used.
They require the process name or id to kill the process.

To reload the changes to Systemd unit files, execute the “systemctl daemon-reload” command. Also, you can reload the specific unit files in the system.

To restart the network interface on Linux, we must restart the service associated with the network manager. Read this post to learn more about it.

In Linux, the “Notepad++” application can be installed using the command “sudo snap install notepad-plus-plus”. Or GUI support can also be used.

To change the GRUB timeout in Linux, open the “/etc/default/grub” configuration file and set the “GRUB_TIMEOUT” value in seconds.

To remove the screen sessions, run the screen utility using the “r” flag with its session ID and then type exit or use the shortcut key “Ctrl+A+D”.

The boot loader loads the OS into memory and starts it. It is responsible for initializing the system, performing hardware tests, and giving control to the OS.

The reason for the error “gpg: keyserver receive failed: no name” is the problem with the keyserver that can be fixed by changing it to another server.

To fix this error, upgrade the pip to the latest version and install the missing libraries; the process and the commands are given in the article.

The reason for the error “importerror: libsm.so.6: cannot open shared object file” is the missing libraries that can be fixed by installing these libraries.

In Linux, the “su(Switch User)” built-in command line tool is utilized to switch the currently logged-in user to the specified user of the system.

Explore the top 6 best image editors for Ubuntu and find the perfect fit for your editing needs. Each with unique features for every kind of user.

The rm and find commands are used to remove all files in a Linux directory. Moreover, the GUI method demonstrated in this post also serves the purpose.

Learn how to easily find the MAC address of any device on your Linux network. Follow our guide to look up MAC addresses and gather device info quickly.

The cron job can be easily run every 10, 20, and 30 minutes by mentioning the time sequence using the “slash(/)” or “comma(,)” operator.

Linux offers the “cp(copy)” and the “rsync(remote sync)” commands to copy a folder from the source to the destination place. It can also be done via the “GUI”.

Linux “home” directory is the subdirectory of the “root” directory denoted by the “~(tilde)” slash. It also refers to the “Login Directory”.

The “shutdown”, “poweroff”, and “halt” commands are used to shut down the Linux system. Moreover, it can also be achieved from the GUI.

Linux offers the “fdisk” and “cfdisk” utilities to delete a partition from the device. Furthermore, It can also be performed via the “GParted” software tool.

The error “ /bin/rm: argument list too long” can be resolved by deleting the directory using the “rm” command. It can also be fixed via the “find” command.

Top 9 User-Friendly Arch-based Linux distributions recommended for 2023 are Manjaro, Anarchy Linux, Garuda Linux, EndeavourOS, and many more.

The “sshfs” command mounts the remote directory by specifying the local mount point. This command requires the “username” and “hostname” of the remote machine.