Linux

Summary of common Linux commands-vi editor vi is a powerful editor on the linux command line interface. Three command modes of Vi: You can use vi commands to manage files, such as moving optical objects, deleting and moving characters and lines,

Non-local account in ubuntu. the profile file was accidentally modified in the account today. profile file, so that the account cannot enter after the restart, click the account to log on to the black screen, and then return to the Account Login

Linux Performance Tuning 15th: common network parameter sorting about linux Performance Tuning 14th: Adjusting socket buffer http://www.bkjia.com/ OS /201307/230154.html 1. tcp connection persistence management: net. ipv4.tcp _ keepalive_time = 7200

CentOS 6.3 upgrade 6.4 1. Get root permission 2.yum update-y 3. the following error occurs, and no solution is available on the Internet. During the upgrade, libreoffice-core... libjawt. so already exists. libreoffice-ure... requires support from

RPM is short for Red Hat Package Manager. It is intended to manage Red Hat software packages. As its name suggests, RPM is a software Package management tool contributed by Red Hat; mainstream Release versions such as Fedora, Redhat, Mandriva, SuSE,

Two Methods for Batch Process deletion in linux are described. The process to kill has a common string. [Plain] kill-9 'ps-ef | grep xxx | awk '{print $2} ''after kill-9 is the one above the Tab key. The above is kill-9' to list the processes, find

Rsync3.0.6 server and client (preliminary preparations) server: (Environment: centos5.5 64-bit) 1. install: Use yum-y install rsync to configure vi/etc/xinetd. d/rsync: Change disable to no. Do not disable creating rsyncd under/etc. conf file uid =

Ubuntu12.04 scheduled message reminder Background: people are too old to remember, always forget to write weekly reports on Friday, so they are prepared to get a scheduled reminder. there was no suitable solution for finding it. Finally, I had no

Here document usage (cat First Line> Second Line> Third Line EOF> EOFFirst LineSecond LineThird Line EOF Note:> this symbol is the identifier of the prompt input information generated by the terminal. The EOF is only an identifier. It can be

Commands frequently used in linux to modify file permissions and user group management summary are as follows. Modify the group to gourp1chgrp gourp1 test.txt 2.chownmodified file owner. Modify the user of test.txt file to user1chown user1 test.txt

Detailed description of linux File System: The file time attribute file is the basic structure for storing data in linux. It is stored in storage media such as hard disk, CD, and floppy disk and is named, this is the name of the file. Files in linux

Create a memory disk to improve file read/write efficiency. Shell code #! /Bin/bash LD_LIBRARY_PATH =/usr/local/lib: /usr/lib export LD_LIBRARY_PATH ROOT =/usr/local/ssel2/ramdisk RAMDIR = $ ROOT/dbf RAMDIRNAME = dbf create () {echo $ "Checking

Because the disk inode is used up, "No space left on device" cannot be created in the/data directory.> touch a touch: cannot touch 'A ': no space left on device disk only uses 61%> df-h Filesystem Size Used Avail Use % Mounted on... /dev/sda5 817G 46

Files frequently to be modified in linux 1 system settings Article 1001 modify the Host Name: vi/etc/sysconfig/network, change the HOSTNAME line to "HOSTNAME = Host Name" (no such line? Add this line), and then run the command "hostname host name ".

Linux files that are frequently modified 2 2001 permanent change ip edit/etc/sysconfig/network-scripts/ifcfg-eth0 files, modify ip, and then execute ifdown eth0; ifup eth02002 allow | Prohibit root from logging on to sshd_config: PermitRootLogin no

In CentOS 6, the dependency problem environment for installing OMSA is CentOS 6.3. When installing the DELL OpenMange Server Administrator, the following error occurs: error: Failed dependencies: libcmpiCppImpl. so.0 () (64bit) is needed by srvadmin-

CentOS system command operation record-1, load the USB drive if there is no automount (how to set ?), You need to manually attach the USB drive. Fdisk-l # list the file systems loaded by the current system. Mount/dev/sdb1/mnt # load the USB to the

Linux gdb command 1. Regular debugging gdb is a common program debugging tool in Linux, provided that the-g parameter is added during gcc/g ++ compilation, in this way, the compiled executable program will add gdb debugging information. There are

Linux vi operation highlights 1. read/write status Switch a: Write Esc: Read 2. Save, exit save: w Exit: q save Exit: wq add an exclamation point indicates force save or exit: w! Q! 3. jump from the beginning to the end of the line 0: Jump to the

Rhel6 vncserver settings 1. installation Package: tigervnc-server2. to configure/etc/sysconfig/vncserverVNCSERVERS, you can use vnc to link to vncserver. To connect multiple users to vncserver, you must configure multiple users in the following