These types of network file transmission are most suitable for LAN, and FTP is used in the NetworkI. NFS serviceThe network file system (nfs) depends on the rpcbind service. The client accesses the rpc of the server through rpc, and nfs requests the
In linux, free is usually used to view the memory status.What is the difference between cached and buffers in the free command of linux?FreeMem: physical memory statistics-/+ Buffers/cached: indicates the cache statistics of physical memory.Swap:
1. File Names of hardware devices in Linux 2. Relationship between disk connection methods and device file names
3. Disk composition review
The smallest unit of the cylindrical file system, which is also the smallest unit of the partition.
This document uses Ubuntu Kylin1404 as an example to describe how to remotely log on to Linux through Windows.
First, make sure that the SSH service on Ubuntu runs normally. By default, an SSH client is installed in Ubuntu. For example, if you
Requires components: Virtual Machine, CentOS-6.5-x86_64-minimal.iso, CentOS-6.5-x86_64-bin-DVD1.iso.
1. First, use minimal to install the virtual machine to minimize installation;
2. Perform some basic configurations;
2.1 The virtual machine uses
After a busy afternoon, I finally deployed the note-taking server on the LAN. For detailed steps, see the link address below. The installation steps of CentOS 6.5 may be different from the Link described below, for more information about how to
Ls-l | grep '^-' | wc-l
Ls-l | grep-c '^ -'
Ls-l long list output file information under this directory (note that the files here, unlike general files, may be directories, links, device files, etc)
Grep ^-here, a portion of the output
: Http://www.mongodb.org/downloads
Unzip command: tar zxf mongodb-linux-i686-2.6.0.tgz
Storage Directory:/usr/local/mongodb
Data Directory:/mongodb/data/
Log File:/mongodb/dblogs
There are no specific installation steps. just decompress the package
These types of network file transmission are most suitable for LAN, and FTP is used in the Network
I. NFS service
The network file system (nfs) depends on the rpcbind service. The client accesses the rpc of the server through rpc, and nfs requests
Process Control (1) process identifier
Each process has an integer representing a unique process ID. After a process is terminated, its process ID can be used again. The following are the IDs, types, and functions of several typical processes.
ID
In a network environment,
1. yum search installation package name
The server automatically searches for all installation packages that contain the full name of the "installation package ".
Eg: [root @ dhcppc0 ~] Yum search java
2. yum list |
MinGW installs MSYS by default. Generally, the MinGW Shell is actually MSYS, and MinGW exists as a component.
MSYS -- Minimal SYStem, is a Bourne Shell interpreter.
MinGW -- Minimalist GNU for Windows. The Development Environment Based on native
1. BackgroundThere are three ways for the Development Board to obtain files from a pc under u-boot:(1) dnw transmission: http://www.cnblogs.com/tanghuimin0713/p/3614768.html2) Serial Transmission: http://www.cnblogs.com/tanghuimin0713/p/3619446.html3
Assume that the task is to remove 2014 from all. log suffix file names in the directory.
Method 1) script
This method uses ls to traverse all the files in the current directory, obtain the file name, and perform the mv operation as follows:
#!
Process environment Process Termination
There are eight ways to terminate the process, 5 of which are normal termination, they are
1) return from main
2) Call exit
3) Call _ exit or _ Exit
4) The last thread returns from its startup routine
5) The
Standard IO Library
When a stream is opened, the standard I/O function fopen returns a pointer to the FILE object. This object is usually a structure that contains all the information required by the standard I/O library to manage the stream,
Rpm mode.There are various language packs on the installation disk. You only need to find them and install them. In ChineseFonts-chinese-3.02-9.6.el5.noarch.rpmFonts-ISO8859-2-75dpi-1.0-17.1.noarch.rpmGo to the corresponding directory of each file
System data files and information password files
Stored in/etc/passwd. Use the following function to obtain the password file.
# Include
# Include
Struct passwd * getpwnam (const char * name );
Struct passwd * getpwuid (uid_t uid );
If you want to
We all know that many files only have root permissions to be modified. We recommend that you use a general account to log on to the development process during normal development. Do you still remember the ssh mentioned earlier, we also set allow
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