Linux

Hostile: [Hastl]: hostile, hostile: hostile army, hostile action hostile aircraft.We lea the whole hostile army captive. [K2eptiv]: adj. imprisoned ...--------------------------------------------------------The Linux firewall is divided into two

8. using regular Expressions with grep Regular expression: He uses a string to describe, match some of the syntax rules of a string, so that these rules of the syntax of the string, the corresponding processing.Common support for regular expression

SED command usage parameters[[Email protected] ~]# sed [-NEFR] [action]Options and Parameters:-N: Use Quiet (silent) mode. In the usage of general sed, all data from STDIN is generally listed on the terminal. However, if you add the-n parameter,

Use at and cron to schedule tasks At execution time [[Email protected] ~]# Atq[[email protected]~]# atxx: - at> Cal >>/tmp/test-At.txtat>Date/tmp/test-At.txtat> JobTenAt Sun Nov in xx: -:xx -[[Email protected]~]# ATQTenSun Nov in xx: -:xx -a root[

Linux all access to files, in addition to ordinary files and directory files, but also include some other special files: block device files, character device files, socket files, linked files and so on. Today, we mainly talk about common block

Today encapsulates the command line, need to create users, user groups, encountered the following problems,At that time I and confused, why clearly exist ' 1111 ' This user group, but the hint does not exist?? Is it a Linux bug???And then I tried a

Http://www.cnblogs.com/ggjucheng/archive/2013/01/13/2856901.htmlSed is an online editor that processes a single line of content at a time. When processing, the currently processed rows are stored in a temporary buffer called pattern space, followed

1, VI of the basic conceptBasically VI can be divided into three kinds of States, namely:Command modeInsertion modes (insert mode)Bottom-row mode (last line mode)The functions of each mode are differentiated as follows:1) command-line modeControls

How to view service startup times[Email protected]/]# Ps-ef |grep nginxRoot 14730 1 0 16:45? 00:00:00 Nginx:master process/usr/local/nginx/sbin/nginx-c/usr/local/nginx/conf/nginx.confNobody 14731 14730 0 16:45? 00:00:00 Nginx:worker ProcessNobody 147

There are nine basic permissions on the Linux file, each of which has its own Read/write/execute authority, owner/group/others three different identities.Example: The file's permission character is-rwxrwxrwx this nine permission is three three a

1. Ensure that the host name is uniqueHost Name Modification method:A. Modifying the host name that/etc/sysconfig/network,hostname= wants to setB. Modify the host name that/etc/hosts,127.0.0.1 localhost wants to set localhost4 localhost4.localdomain4

2015-12-011. Installing TigerVNC ServerYum-YInstalltigervnc-Server2. Set the VNC password Vncserver3. Configuring the Graphical interface vim/root/.vnc/Xstartup comment on the line #twm&increase the line gnome-session &4. Configuring the VNC Service

Crond ServiceCrond is a service or software that is used on a Linux system to perform regular commands or make tasks. General Installationcentos5orCENTOS6system of Time,Crondwill be there by default. CrondBy default, the service checks to see if the

LINUX-DD command ExplanationDD is a very useful command under Linux/unix, which is to copy a file with a block of the specified size and make the specified conversion at the same time as the copy.Name: DDUsage rights: All user dd This directive is

Common Linux shutdown commands are: Shutdown, halt, Poweroff, Init, and the restart command: reboot.First look at some of the more commonly used Linux shutdown commandsShutdown command:1, halt immediately shut down the machine2, Poweroff immediately

Copy Local data to a remoteHere is a mistake, read only. Read only, no write allowed.Change the configuration file for the remote machineChange read only to NoCopy to remote successTree The directory of the remote machine/////////////////////////////

First, Introduction Top is a dynamic display process where the current state can be refreshed continuously with the user key. If the command is executed in the foreground, it will monopolize the foreground until the user terminates the program. More

Everyone should understand TCP Even if you do not need to know TCP in your work, you do not need to know the specific TCP/IP instance. You should also understand some basic TCP knowledge. This article will tell you why. I used to write a TCP stack

Linux Study Notes: swap Partition Linux Study Notes: swap Partition How can we create a swap partition for a newly added hard disk? Follow the following four steps: (1) use an existing partition, for example, as (2) The hexadecimal encoding of

What is Unikernel? If you keep paying attention to DevOps weekly, DevOps theme meetings, or are really interested in technology, you may have heard of Unikernel many times. In the past few months, it seems to be getting more and more