Linux

Linux entry basics: Linux expansion permissions default permissions each terminal has an umask attribute to determine the default permissions for new files and folders umask are represented by digital permissions, for example, the default permission

In linux, you can use the-h or -- help parameter to obtain help information for almost all commands. man ls can also obtain detailed help information for ls commands. man-k XXX can be viewed. the document that contains the keyword XXX also has a

Quick setup of git-daemon 1. to install git-daemon, install gitsudo apt-get install git-core and install git-daemonsudo apt-get install git-daemon-run 2. after the configuration is installed, modify the configuration file/etc/service/git-daemon/run #

Very good ten Linux shell script Interview Questions 1. Write a shell script to transfer files larger than 10 kb in the current directory to the/tmp directory #/bin/sh # Programm: # Using for move currently directory to/tmp for FileName in 'LS-l |

Vim advanced editing (1) This article is based on "using vi Editor, Lamb & Robbins compilation". The content of this article is summary: set settings. vimrc configures vim to execute linux commands and use linux commands to edit the abbreviation of

Linux system logs and rsyslog ServiceA log is a plain text file/var/log used by the system to record some related messages during system operation. It stores a large number of plain text log files to maintain the running status of related programs.,

Install Gnome3 for ArchLinux in VirtualBox. Choose to install pacman-S gnome for other settings: Install gnome below. If you do not like to use the desktop environment, it is nonsense. Groupadd example1 useradd example2-s/bin/bash-m-g example1

In linux, you only need to modify the file to resolve the domain name to an IP address, and add the IP address of the domain name server of the ISP (Network Service Provider) in your location to it, if you do not know the IP address of your local

Demonstration of Root User Password-less MethodDemo environment:Virtual Machine: VMware 10 PreviewSystem: red hat el6.31. Start from startup2. Press any key to enter the menu when the countdown occurs.3. Press "e" to proceed to the next step.4.

Linux basic configuration and management-Linux system startup details 1 system startup process BIOS-> MBR + boot code-> run the boot program: GRUB-> load the kernel-> execute init-> RUN runlevel 2 start details 1 BIOS 1 BIOS refers to the basic

Linux basics: Linux Network basic configurations Ethernet connections in Linux, Ethernet interfaces are named eth0, eth1, etc, 0, 1 indicates the network card number. You can use the lspci command to view the hardware information of the network card

Vim multi-window editing vim provides the multi-window editing function to simplify compound editing tasks. The multi-window mode of vim does not mean that multiple vim instances are started on the terminal. Enable multi-window editing. The

Ubuntu fixed the grub command. A problem occurred while backing up grub. cfg today, leading to the accidental deletion of grub. cfg. What's worse is that I didn't realize this yet. After restarting, I only saw the grub command line interface with

BackTrack5 r3 run Metasploit to report an error, update the solution stuck in pg (0.15.1) 1. Modify file:/opt/metasploit/ruby/lib/ruby/1.9.1/i686-linux/rbconfig. rb CONFIG ["LIBRUBYARG_SHARED"] = "-Wl,-R-Wl, $ (libdir)-L $ (libdir)" CONFIG

Modify the default language environment of the system. 1. Run the locale command to view the language settings of the current environment: jack @ jackguo :~ $ Locale LANG = en_US.UTF-8LANGUAGE = en_US: enLC_CTYPE = "en_US.UTF-8" LC_NUMERIC = zh_CNLC_

Linux folder packaging command. tar unpack: tar xvf FileName.tar package: tar cvf FileName.tar DirName (Note: tar is packed, not compressed !) Unzip unzip 1: gunzip FileName.gz unzip 2: gzip-d FileName.gz compression: gzip FileName .tar.gz unzip:

The exitshell exit code has two functions: 1. exit the current shellsh-# exitexitINIT: Entering runlevel: 3 2. directly exit in shell script, so that we can use a specific exit code to indicate the execution status of scripts when writing shell

In linux, the memory release operation is in Linux. we generally do not need to release the memory because the system has managed the memory well. But there are exceptions in everything. Sometimes the memory will be occupied by the cache, which will

How to install vmtool in a virtual machine linux operating systemStep 1: first we need to find linux. the iso file to install vmtools is actually very simple. You just need to right-click the corresponding virtual machine and find and install VMware

Vmware tools for file sharing between VM linux and WindowsThere are many methods for implementing file sharing with windows in VM linux. Here I recommend two common methods: 1-vmware tools; 2-Samba. I don't know why. I like the former, but many