Linux

0X00 Linux File directory structure We are in the Windows environment of the file directory structure is probably several letter, C disk D disk E ... But under Linux is a tree diagram (in fact, Windows is also a tree diagram inside). Linux the next

1,donwload bind9 Wget-p/usr/local Https://www.isc.org/downloads/file/bind-9-10-4-p1/?version=tar-gz2,install Pkg Yum Install gcc Openssl-devel3, compile and install ./configure--prefix=/usr/local/bind--with-openssl=no && make && make install4,

FHS File System /bin: Executable program storage, binary files/sbin: Commands that only administrators can executeThe program the operating system needs to run itself when it starts/sbin,/binOther

Ls Normal file:-,fCatalog Files: DLink file (Symbolic link): LDevice files:Character Devices: CBlock Device: bNamed pipes: PSocket file: S Linux file time stamp Time is divided into three types: creation time,Modification Time: OpenAccess time:

System: CentOS 5.xSoftware Required: rsyncScript content: The code is as follows Copy Code #!/bin/bashFile= ' Du-sm/var/www/vhosts/|awk ' {print $} 'Ps= ' ps-c rsync--no-header|wc-l 'If ["$file" = "11517"];thenecho

Apache or Nginx have a switch default log, one is the normal access log, one is the wrong log,Directory in/www/wdlinux/nginx-1.0.15/logs/www/wdlinux/httpd-2.2.22/logsBoth logs will record all normal and abnormal access log information.and is the

So I returned to the use of Linux command line terminals, by creating multiple alias to meet the different SSH parameters, such as some need to use key, some need to use a password, and then add all the servers to a text file in a list of the way to

(PHP 5.3 and above) Please set ' request_order ' ini value to include C,g and P (recommended: ' CGP ') in php.ini ... This should all have met, well I also met, last night hard to reload the system environment after the choice of PHP version is 5.3,

How to use awk awk ' {pattern + action} ' {filenames} Although the operation can be complex, the syntax is always the same, where pattern represents what AWK looks for in the data, and the action is a series of commands that are executed when the

1: Soft LinkCommand: Ln–s/etc/inittab/test/inittab.softView: Ls–l/etc/initab/test/inittab.softFound a soft connection similar to Windows shortcut,-> represents the address of a real file2: Hard LinkCommand: Ln/etc/inittab/test/inittab.hardView: Ls-l/

Modify permissions in Linux will use the chmod command, chmod----Change the access mode of one or more files (mode) chmod [options] mode files Only file owners or privileged users can use this feature to change file access mode. Mode can be a

First, get acquainted with the VSFTP command: Start vsftp with the command: 1.service vsftpd Start Restart Vsftp with: 1.service vsftpd Restart Add User: Useradd-m 111CN, the default is to create a user 111CN in the/home directory, if the user

1. Download the Google Chrome installation program[Root @ webserver ~] # Wget http://chrome.richardlloyd.org.uk/install_chrome.sh2. Change permissions[Root @ webserver ~] # Chmod + x install_chrome.sh3. Execute the installer[Root @ webserver ~] # Sh

This article describes how to seamlessly and smoothly upgrade Nginx from 1.6.0 to Nginx 1.6.1.# Download the latest software[Root @ idoseek ~] # Cd/usr/local/src /&&Wget http://nginx.org/download/nginx-1.6.1.tar.gz &&Tar-zxvf nginx-1.6.1.tar.gz #

Run bash scp on a system today and prompt command not found. The solution is as follows. If you need it, referAfter centos6.0 is installed, many packages are not installed because of the minimum installation. Therefore, some common commands are not

Here we use the virtual machine test in esxi virtualization to add a GB hard disk.Selinux and iptables disabled[Root @ localhost ~] # Fdisk-l # create partitions for the new hard disk without attaching them.Disk/dev/sdb: 214.7 GB, 214748364800 bytes2

File type test-E condition operator is used to test whether a file exists (including all file types and directories)If [[-e $ filename]; thenEcho "$ filename exists"FiYou can also test files of the specified type.If [[-f $ filename]; thenEcho "$

Redirection standard output> Redirects the standard output (STDOUT) of the current command to a file or descriptor.The following example stores the lscommand output to the File.txt file.Ls> file.txt> File.txt lsIf the target file does not exist, it

File service:Ftp: Application layer, C/S, file sharing; file transfer protocol;Nfs, cifs: file system interface, network file system;Nfs: network file systemCifs: common internet file systemSambaNetwork Storage:NAS: Network Attached Storage, file

I. NR, FNR record current row[Root @ LinuxEA awk] # cat nr112 B3 c4 d5 e[Root @ LinuxEA awk] # awk '{print FNR} 'nr1123456[Root @ LinuxEA awk] # awk '{print NR}' nr1123456[Root @ LinuxEA awk] # awk '{print "row. =" NR "data =" RNR, $0}' nr1Row. = 1