40 most used Ubuntu 20.04 Commands

1. What are 10 Linux commands you can use every day?
2. What are the basic commands in Ubuntu?
3. How do I get a list of directories in Ubuntu?
4. How can I see all executed commands in Linux?
5. What is $? In Linux?
6. What is symbol called in Linux?
7. What are the basic troubleshooting commands?
8. How do I enter commands in Ubuntu?
9. How do I learn basic Linux commands?
10. How do I list all directories in terminal?
11. How do I list all directories in Linux?
12. How do I get a list of directories in Linux?

What are 10 Linux commands you can use every day?

I'm going to talk about the main Linux commands with their main parameters that you might use daily.

• ls command.
• cd command.
• cp command.
• mv command.
• rm command.
• mkdir command.
• rmdir command.
• chown command.

What are the basic commands in Ubuntu?

A list of basic troubleshooting commands and their function within Ubuntu Linux

How do I get a list of directories in Ubuntu?

See the following examples:

1. To list all files in the current directory, type the following: ls -a This lists all files, including. dot (.) ...
2. To display detailed information, type the following: ls -l chap1 .profile. ...
3. To display detailed information about a directory, type the following: ls -d -l .

How can I see all executed commands in Linux?

In Linux, there is a very useful command to show you all of the last commands that have been recently used. The command is simply called history, but can also be accessed by looking at your . bash_history in your home folder. By default, the history command will show you the last five hundred commands you have entered.

What is $? In Linux?

$? -The exit status of the last command executed. ... For shell scripts, this is the process ID under which they are executing.

What is symbol called in Linux?

Symbol or Operator in Linux Commands. The '!' symbol or operator in Linux can be used as Logical Negation operator as well as to fetch commands from history with tweaks or to run previously run command with modification.

What are the basic troubleshooting commands?

So, without further ado, here are our top 10 network troubleshooting tools.

• Ping. Ping is likely the number one utility that every tech pro will use on a daily basis. ...
• Traceroute / Tracert. ...
• Ipconfig / Ifconfig. ...
• Nslookup. ...
• Whois. ...
• Netstat. ...
• Putty / Tera Term. ...
• Subnet and IP calculator.

How do I enter commands in Ubuntu?

Run a Command to Open a Terminal

You can also press Alt+F2 to open the Run a Command dialog. Type gnome-terminal here and press Enter to launch a terminal window. You can run many other commands from the Alt+F2 window, too.

How do I learn basic Linux commands?

Basic Linux Commands

1. ls – List directory contents. ...
2. cd /var/log – Change the current directory. ...
3. grep – Find text in a file. ...
4. su / sudo command – There are some commands that need elevated rights to run on a Linux system. ...
5. pwd – Print Working Directory. ...
6. passwd – ...
7. mv – Move a file. ...
8. cp – Copy a file.

How do I list all directories in terminal?

To see them in the terminal, you use the "ls" command, which is used to list files and directories. So, when I type "ls" and press "Enter" we see the same folders that we do in the Finder window.

How do I list all directories in Linux?

Linux or UNIX-like system use the ls command to list files and directories. However, ls does not have an option to list only directories. You can use combination of ls command and grep command to list directory names only. You can use the find command too.

How do I get a list of directories in Linux?

ls is a Linux shell command that lists directory contents of files and directories.
...
ls command options.