what shell prompt

Linux NetHogs monitoring tool introduction, linuxnethogs NetHogs Introduction NetHogs is an open-source, free network traffic monitoring tool for Linux processes or applications. NetHogs can only monitor the network bandwidth usage of processes in

Shell Program Design (1) pipelines and redirection redirect output Chen123 @ ubuntu :~ /C ++ $ ls-l> lsoutput.txt This command saves the lscommand output to the lsoutput.txt file. File descriptor 0 represents the standard input of a program, file

At present, many users use Linux servers, but the current network environment is not very calm, and there are always malicious attacks. At ordinary times, some friends may encounter the problem of server hacking. After collecting and sorting out

The RS/6000AIX Boot Mode is divided into multi-user normal mode and single-user service mode. Generally, the multi-user guide mode is selected under normal circumstances. During system maintenance, the single-user mode is selected. 1. Multi-User

Network Scanning and sniffing tool Nmap in the penetration test tutorial of KailLinuxNetwork Scanning and sniffing tool Nmap Network scanning and sniffing tool-NmapNmap is a free and open Network scanning and sniffing tool. This tool can scan hosts

The Linux administrator must pay attention to the security concerns. The fact that Linux is hacked is the least acceptable to the Administrator. How to check whether the system managed by the Administrator is secure, can I check if my Linux is

Swap space in Linux is used when physical memory RAM is full. If the system requires more memory resources and the physical memory is full, the inactive pages in the memory will be moved to the Swap space. Although Swap space can help machines with

Reset the password in Ubuntu 16.04 (forgot the password), Ubuntu If you forget your Ubuntu user password and cannot log on to the system, it is very easy to reset the password on Ubuntu, even if you forget the user name.#1 Enter Recovery

PassIptables ing80PortThere are two specific methods. Let's take a closer look. I have configured LINUX on the VM. You want to map port 80 through iptables. Make the Internet WEB accessible. How to do this. I. A simple application: the IP address of

IptablesI have been using it all the time. I have some iptables experiences and small summaries to share with you! Linux Kernel has a powerful networking subsystem netfilter. The netfilter sub-system provides stateful or stateless grouping and

Suggestion: use man sh to view improvements or features on UNIX.(1) shell prompt and its environmentThe passwd file shows the shell used by each user after login. The following two files also mean this./Etc/passwd filePrompt: $/Etc/profile $ HOME/.

The Mini Linux system to be built in this article can only run on a specific single machine. If you are interested, you can improve it on the basis of this system, A general plug-and-play system can be built on most general PC machines. However,

Linux Command-lynx The lynx command is a plain text Web browser that does not support multimedia information such as graphics, audio, and video. Lynx Syntax:Lynx [options] [file] Options: options -Case: case sensitive when searching strings;-Ftp:

-- Reprinted: I. Overview:In redis, the list type is a string linked list sorted by insertion order. Like the common linked list in the data structure, we can add new elements in the header (left) and tail (right. If the key does not exist during

Contents1. Shell Introduction1.1. What is shell?1.2. Shell Classification2. Shell syntax2.1. Define Variables2.2. Variable type2.2.1. Character Set Variables2.2.2. Digital constant definition2.2.3. Array2.2.4. System Variables2.3. Operators and

First, you must check whether Ruby has been installed. At the shell prompt ("%" here, so do not enter % ), % Ruby-V (-V tells the interpreter to print out the ruby version) and press Enter. If Ruby is installed, you will see information

I. System Problems1. The system cannot be started. The possible problem is that MBR is damaged or grub is incorrect. Two solutions can be considered: 1. Enter the rescue mode and edit menu. lst under/boot/GRUB. 2. Repair MBR. Backup MBR: dd If

In python, there is a telnetlib, which is used to create a physical Telnet connection to the host, and then send commands to the host (just as input on the keyboard) and receive data from the connection. With this function, we can change all the

The installation and uninstallation of Linux software has been a problem for many new users. In Windows, we can use the installation and uninstallation programs that come with the software or "Add/delete programs" in the control panel. Similarly, in

　 LinuxSoftware installation in the environment is not an easy task; if the installation is completed after source code compilation, of course the process will be more complicated; currently, various software installation tutorials are very common;