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How do I set up the welcome information for Linux users when they log on? We need to modify the/etc/motd file and write the text to it so that the user can log in correctly and get the prompt information before executing the shell. Example: [root@localhost/]# VI/ETC/MOTD welcome you to visit the Wind network Http://www.ithov.com:wq save exit. Close the terminal and login to provide information as follows: Last Login:mon ...

How to customize the information that users display when they log in, implement a text file named MOTD in the ETC directory, for example, build your own/ETC/MOTD: $cat/ETC/MOTD Welcome to www.ithov.com my server! Then, when the user logs on to the system, the following message appears: Last Login:thu June 13:45:21 2013 from 192.168.1.2welcome t ...

How to produce an empty file with a fixed length (for example, a file length of 1M) byte, that is, the value of each byte is all 0x00. DD If=/dev/zero of=/tmp/zero_file bs=http://www.aliyun.com/zixun/aggregation/12560.html ">1024 count=1024 Example: [ Root@localhost software]# dd if=/d ...

Install a Linux server, want to compile the kernel, step by step, GRUB also added, but the "kernel Panic:VFS:Unable to mount Root fs on 0:00" error, excuse me, what is going on? Generally initrd this file is not required on the desktop, but it is required on a server that has SCSI devices. It is possible because the kernel did not produce initrd that file, so there will be the above error ...

How to remove RPM-E packets in Linux, we can use the force Uninstall Method 1, if the package deleted before the package directory Rpm-e--noscripts Example: [Root@localhost/]# rpm-e--noscripts VSFTPD 2, if a package in the system is loaded two times (due to some exceptions) Rpm-e multi-installed-pkgs–allmatches example: [Ro ...

For the first contact with Linux friends, in order to better learn Linux will often install more than two sets of operating systems on the computer, generally more common is Windows XP and Linux coexist, but for various reasons, Windows http:// Www.aliyun.com/zixun/aggregation/19803.html ">XP system failure, reinstall after installing Windows XP, start the computer, found no way to choose to enter Li ...

View the current status of the Linux system, 11545.html "> We have three ways to query methods 1:who am I example: [Root@localhost/]# who am iroot&http://www.aliyun.com    /zixun/aggregation/37954.html ">nbsp; Pts/0  ...

How to force a new user to login after first landing in Linux http://www.aliyun.com/zixun/aggregation/6545.html "> Modify password?" In the process of managing Linux system, we have added a user, but for security reasons, require new users to change the password at the first login, we can implement the following command: #useradd-P ' testuser; Chage-d 0 Testuse ...

The solution that prompts "Too many open files" when Linux compiles the kernel is as follows: This is because the File-max default value (8096) is too small. To resolve this issue, you can execute the following commands (or add them to the Init script under/etc/rcs.d/*) as root: # echo "65536" >/proc/sys/finally enters the unpacked directory and runs the installation command. # CD Vmware-linux-...

How to view the current running level in Linux, we can use the RunLevel command: usage:runlevel [OPTION] ... [UTMP] Output Previous and current runlevel. Options:&http://www.aliyun.com/zixun/aggregation/37954.html ">nbsp; Q,--quie ...

How do I boot into the text interface with grub? When Linux boot does not enter the system, we need to boot to the text interface through grub to repair the operation of the system, the following steps: After entering Grub, press A, enter space 3 can be guided into the text interface, but do not modify the operating level of the system, only when the time is valid, After restarting the system, it is invalid.

Enter the Linux terminal window why is man an order out of garbled? This is because your character set has a problem. Temporary solutions can be used with export lang= "en_US". To do not have to change every time, in the/etc/sysconfig/i18n file to modify the lang= "en_US" on it. Example: #vi/etc/sysconfig/i18n can also be done for a user, so that you can change the individual interface language without affecting other users. To order as if ...

How to Safely remove Linux for dual systems? Some friends just contact Linux, for the convenience of learning, installed a dual system, so that Windows and Linux share, how to safely remove the Linux system? Let's take a look at how to do this: step 1:dos using FDISK or booting into the Recovery Console with a WIN2000/XP CD, use the command fixmbr Step 2: Format the Linux partition as a Windows partition

Linux formats a partition as a ext3 log file system, and we can manipulate it using the MKFS command: Mkfs-j/dev/xxxx usage:mkfs [-v] [-t fstype] [fs-options] device [size] Example: [ Root@localhost Software] #mkfs J/dev/sda5

How does Linux configure which services to start? 1 run NTSYSV or Setup command, enter menu to configure; [Root@localhost software]# ntsysv [root@localhost software]# Setup

In the VI command mode input: Nohlsearch can be. In addition, you can write the following statement in the ~/.VIMRC will be highlighted: Set Hlsearch plus the following statement will not have a highlight: set Nohlsearch

Today we are going to introduce Linux to the example of a file in 123 to 456, this method is more widely used, especially for the contents of the file changes, the following is a detailed understanding of the two methods of modification: Modified Method 1 #sed ' s/123/456/g ' file.txt > File.txt.new #mv-F file.txt.new file.txt Example: [root@localhost conf]# sed ' s/123/45 ...

Linux compiler kernel, where is the kernel source code? 1, generally in the distribution plate have, such as RedHat, generally in the second, the third on the 2.4 kernel called kernel-source-2.4.xx-xx.rpm2.6 kernel called kernel-devel-2.6.xx-xx.rpm 2, Go to www.kernel.org to download a version of your favorite kernel and recompile the installation.

How do I know the package name when I uninstall the package in Linux? The command to delete the package is rpm-e XXX If you do not know the exact spelling of this XXX, you can use the RPM-QA example: [Root@localhost k3b-1.0.5]# Rpm-qa gccgcc-4.4.7-3.el6.i686 Check all installed packages or use Rpm-qa | grep xxxx Query Name example: [Root@localhost k3b-1 ...

How do I run multiple x windows in Linux? StartX defaults to display:0.0 the first x, by passing parameters to X can play multiple x: # STARTX-: 1.0# startx-: 2.0 ... Then use Ctrl-alt-f7/f8 ... Switch