Linux

1. Create a foldermkdir and Win7 dir view folder2. Delete FolderRmDir3. Display the files in the folderLs-l differs from Ls-al (some hidden files)4. Clear ScreenClear vs. Win7 CLS5. Delete a file:Rm-f Text.txtRpmDebLS display file name, attributes,

Installation system: ubuntu12.04 i386 DVDUSB stick Start 12.04live system wiring, setting up Connectionsinstalling the system to the hard disk "Language support", update Installing the Gnome Classic interfacesudo apt-get install Gnome-shell

System version: Linux (Ubuntu) Other desktop distributions should also be OK.Related commands: Lspci, CVT, XrandrYou need to modify the appropriate desktop resolution mode when the desktop resolution is not displayed properly or if there is no

The LD directive has an option:--oformat output_format, which specifies the format of the output file. The input file./KERNEL/KERNEL.O is the ELF32 format, the current system is 64 bits, and the LD default generated file format is elf64-x86-64;

1. Shell PipelinePipelines can connect a number of commands, and the input of a command can be used as the output of a 2nd command. The output of the 2nd command is input to the 3rd command, and so on. Therefore, the function of a pipeline is to

A desktop Ubuntu memory total 4G, but free memory only 100MNote Use the top command to see the true free memory. Here's another command to see how much memory is actually used.Watch-n 1 Cat/proc/meminfoSearch found that there are three ways to

When installing CRS in linux as5.4 64bit , execute the root.sh times error [[email protected] crs]# sh root.sh  WARNING: directory  '/opt/ora10g/product/10.2.0 '  is not owned by  rootwarning: directory  '/opt/ora10g/product '

Reboot the system.Enter the system boot interface:Press the E key:Select the second key, the kernel startup parameter setting, press the E key:At the end, enter the number 1 or English "single" and Return to:Press the B key to start the boot program

SSH Password-free login1. Ssh-keygen-t RSAThree-time return2. Cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys3. Verify that SSH localhost is successful if you do not require a password to log in4. Face password Login to other machinesSsh-copy-id-i

Wget-c http://ftp.gnu.org/gnu/binutils/binutils-2.7.tar.gzwget-c http://ftp.gnu.org/gnu/gcc/gcc-4.4.2/ Gcc-4.4.2.tar.bz2wget-c https://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.33.1.tar.bz2wget-c/HTTP FTP.GNU.ORG/GNU/GLIBC/GLIBC-2.11.TAR.BZ2

This article originates from: Http://blog.csdn.net/svitterCitation: http://www.2cto.com/os/201305/209285.html{Ubuntu views the program that occupies a port to view port usage, using the netstat command. To view the connected service ports

Original Blog address (Welcome to visit): http://www.loveyqq.tk/blog/2014/05/27/nginxyou-hua-pian-zhi-linux-nei-he-can-shu-de-you-hua/Because the default Linux kernel parameters consider the most common scenario, which is clearly incompatible with

1. File descriptorAlmost all of the devices in the Linux operating system are abstracted into device files. Therefore, when we want to operate the device can be directly to the operation of its corresponding device files. The device file is a file,

1, official website download jdk-7u45-linux-x64.tar.gz: http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html2, Tar decompression: TAR-XZVF jdk-7u45-linux-x64.tar.gzGenerally installed in the/usr/local/directory3.

[i] View environment variables: 1.windows View all variables: Set    Example: >set    View the value of a variable: Set environment variable name     Example:     >set java_home      java_home=d:\jdk 2.linux View all variables: Export   

Prerequisites: 1, first install Windows7, post-install Linux system2, Windows7 has "unpartitioned space" (not c:,d:,e:); computer → management → storage space, delete some compressed volume.3, download ultraiso→ i386 DVD1 write to the hard disk

From: http://blog.csdn.net/svitter Cited by: http://www.2cto.com/ OS /201305/209285.html {Ubuntu checks the program that occupies a port to view port usage. Run the netstat command. View the connected service port (ESTABLISHEDnetstat-a) view all

Restart the system. Go to the system boot page: Press the e key: Select item 2, set the kernel startup parameters, and press the e key: At the end, enter the number 1 or English "single" and press Enter: Press the key B to start the

Test code running time In linux, the function can obtain the current time, accurate to microseconds ----> gettimeofday () 1 # include // Int gettimeofday (struct timeval * TV, struct timezone * tz ); 2 /************************************** * *****

First, you must be clear:The NFS service is shared between linux and linux.   Two things we need to do before configuring any service:   Iptables-F Setenforce 0 NFS service kernel firewall has little impact, mainly