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SCP , also known as 安全拷贝 , is a command line utility used to transfer files and directories from local to remote system and vice versa. It also allows us to transfer files and directories between two remote systems. During the trans...

To create a new directory in Linux, we can use the file manager or the terminal. To create a new directory using the terminal, we use mkdir the command. mkdir Order mkdir Commands create directories and set permissions on directories using...

mv We can move files and directories through the Linux terminal using the command with various parameters . Use mv the command to move files and directories mv(move) The command can move files and directories from one location to another. I...

tar is a command line tool that allows us to create and decompress tar files. It supports most compression programs, such as gzip , lzip , bzip2 , lzma , , lzop , xz and compress . bzip2 Files compressed with end with .tar.bz2 or .tbz2 . We...

String concatenation is one of the most widely used operations in programming. It refers to connecting two or more strings by putting one string at the end of another string. To concatenate strings in Bash, we can write string variables one...

We can only execute certain commands as the root user using sudo the command. The root user is also called sudo a user. In CentOS , we can add users by adding them to wheel the group, or by adding them to /etc/sudoers files under the direct...

VMware tools allow us to run multiple operating systems on a single machine, providing virtualization. We use VMWare tools to improve the performance of virtual machines. VMware tools provide features like faster graphics performance, share...

We can use the terminal lsb-release and hostnamectl commands to check the Ubuntu version installed in the system. We can also etc check the Ubuntu version by checking the file, or we can Gnome query it by . There are many ways to check the...

Like any operating system, Linux can have multiple user accounts. Sometimes we may need to use a different user account to access files or run commands that require permissions as root. This article explains how to switch between different...

In Linux, we can have multiple user accounts. Sometimes, we may need to remove some users to deny their access to the system. In such cases, we have to delete the user account. We can use userdel command line utilities to delete user accoun...

The file permission system is one of the fundamental security elements of the Linux operating system. These features allow us to adjust file permissions and access modes. We provide permissions based on appropriate rights to avoid vulnerabi...

This article shows you how to install Apache web server on Ubuntu and Debian, set it up, and access the access logs. Apache Web Server in Ubuntu and Debian Apache HTTP Server is a free and open source web server that is very popular. More t...

IP stands for Internet Protocol, which specifies the principles of Internet communications. An Internet Protocol (IP) address is a unique identifier for each device on the Internet, allowing data to be transferred between connected devices....

cp We can use the and commands in Linux Terminal rsync to copy files and directories. cp The command is generally used to copy files, while rsync the command is generally used to copy directories. Use cp the command to copy files We use com...

We can use the redirection ( ) operator and tee the command to append text to a file. We have to make sure we have enough permissions to add text to the file. If we don't have enough permissions, we may get a permission denied error. Use th...