Linux

RHEL6.3 create a local YUM source 1. mounting ISO mkdir-p/mnt/rhel # an ISO image mount-t iso9660-o loop/software/rhel-server-6.3-x86_64-dvd.iso/mnt/rhel 2 is required. create your own repo file vi/etc/yum. repos. d/local. repo [local] name =

In Linux, diff and shutdown usage command learning in Linux is both a key and a difficult point for many linux beginners. The following describes common commands in linux: diff and shutdown usage. I. diff command usage 1. diff-urN old/new/> mysoft.

After ubuntu 12.04 is restarted, how does one enable waiting for network to access the Internet wirelessly in a notebook under ubuntu? The configuration steps are mainly two steps, one for wireless connection (enter the Key ), one step is used for

Linux Login loading configuration file sequence linux Login is divided into local login and remote login loading file sequence. use telnet. ssh and other connections to the server B. the server starts loginc. enter the account and password d. the

Crontab format and detailed example format: ***** the command column 1st of the day-month-week command indicates minute 1 ~ 59 every minute, use * or */1 to indicate 2nd columns to indicate hour 1 ~ 23 (0 indicates 0 points) column 3rd indicates

Linux backup commands are commonly used in full backup tools, including tar, cpio, and dump. The biggest benefit of cpio is that it can be copied to common device files, so using cpio for full backup is a great choice. However, it should be noted

Switch Thinkpad r400 t400 with dual-graphics card in linux, generally, ati3470 and intel4500 use the lspci | grep VGA command to see which linux cards can be used currently. By default, both of them are enabled, and the power management is very poor,

Shell clutter Note 1. awk usage Java code awk-F "|" '{if ($6 = "1-14-6-A" | $6 = "1-14-6-AB "| $6 =" 1-14-6-B "| $6 =" 1-14-6-BB "| $6 =" 1-14-6-C "| $6 =" 1-14-6 -CB "| $6 = '1-14-6-D '| $6 = '1-14-6-DB ') print $5} 'DW. stat.2013-05

For details about how to change Linux folder permissions, enter ls-l in the shell environment to view the current directory file. For example, drwxr-xr-x 2 nsf users 1024 12-10 download file backup corresponding: file Attribute connections file

Git common command notes git undo add operation before submission problem: when using git, before not added. use git add before the ignore file. add all files to the database, and accidentally add some files that do not need to be added to the

In CentOS 6.4, the wireless NIC Driver was first exposed to CentOS, and the system disk burned by the DVD1 image was downloaded. In order to get familiar with CentOS as soon as possible, the system disk was installed in the form of minimal; after

The options on the Ubuntu main interface are as follows: You can set environment variables. /Etc/profile: The first file used when the operating system customizes the user environment during logon. This file sets environment information for each

Under skyeye modify uboot support 2410 boot from nand my 2440 Development Board does not norflash, is from nand boot, but yangchuang does not provide the source code of the U-BOOT, so decided to transplant, but there is no good debugging method. It

After ubuntu is suspended, it cannot be wakened. First, sudo apt-get install pm-utils to install this package. I recently learned about laptop_mode carefully and found that as long as the laptop_mode is enabled, the Laptop cannot be awakened after

Linux Command miscellaneous kernel is the kernel (dealing with machines) application is the application shell is the shell (dealing with people) What is the shell? The shell provides a prompt for each terminal. The shell "%" ends with "cshell $" and

Working principle of sort command note 01sort: Compare each line of the file as a unit and compare each other. The comparison principle is to compare the lines following the first character by ASCII code, finally, the results are output in ascending

"If 'tty>/dev/null 2> & 1 '"#! /Bin/bash if 'tty>/dev/null 2> & 1 '; then echo "interactive" else echo "non-interactive" fi ------------------------------ cut here ------------------------ The "if 'tty>/dev/null 2> & 1 '" statement is one of those

In CentOS, The KVM bridge connection settings encounter a problem when setting the KVM Bridge Connection, which is recorded for future reference [root @ vane-server ~] # Cat/etc/sysconfig/network-scripts/ifcfg-br0 DEVICE = br0TYPE = BridgeBOOTPROTO =

The Samba server-side operation Samba (SMB) is used for Linux and Windows file sharing software. It can also be used for file sharing between Linux (NFS is recommended for file sharing between Linux ). Similar to the FTP service and the file sharing

Check whether vsftp is installed in the system.Rpm-q vsftpdPackage vsftpd is not installed # This indicates that vsftpd is not installed in the system.If the following error occurs when a virtual user data file is generatedUsers. db-bash: db_load: