In h, h refers to a human perspective, which is displayed in the format of GB and MB. This is quite common and there are other options. You can use mandf to view the information you need.
View the disk and directory capacity.
Df and du
Df means Disk
Redhat-config-network-tui is a unique configuration tool for redhat. when you use this command to configure network parameters, it will be written to the/etc/sysconfig/networking/profiles/directory, and better than network-scripts/ifcfg-eth0
I am a
Find is a very powerful search command in linux. you can view the find Manual through manfind. it may take a lot of time to read the description of find on one screen. I have summarized the common usage of find.
Find is a very powerful search
Many new users are very confused about how to learn linux. This article is summarized by the editors of this site based on the linux learning experience and other linux learning guides.
Many new users are very confused about how to learn linux. This
Ubuntu is a Linux operating system based on desktop applications and an operating system built by a global professional development team. It contains all the applications you need: browsers, multimedia programs, instant messages, etc. Today, I will
These commands are very useful, but the usage is not too high. you can collect them for future reference. Reprinted connection: http://my.oschina.net/hunterli/blog/140783
System
# Uname-a # View kernel/OS/CPU information # head-n 1/etc/issue # View
To build the SVN service and effectively manage code, you can perform the following three steps. To build the SVN service and effectively manage code, you can perform the following three steps.
1. Installation
# Yum install subversion
Determine
The Linuxfsync function is mainly used to synchronize all the modified file data in the memory to the storage device. it is mostly used for the backup function description:
Synchronize all modified file data in the memory to the storage
Ubuntu11.04 the built-in Java environment of the system is openjdk. it is best to use sunjdk. the specific reason is unknown. the online tutorials are basically like this: Ubuntu1. install the Java environment that comes with JDK ubuntu 11.04 is
The date command can not only display the current time of the system, but also use it to modify the system time. The following is a brief introduction to facilitate the users who need it.
Command format:
Date-s time string
For example, you can
Processing text is awk's strength. No matter how fast the performance is, it is amazing. here is a brief introduction.
Copy codeThe code is as follows:[Chengmo @ localhost ~] $ Awk 'In in {While ("netstat-an" | getline ){If ($5 ~ /[1-255]/){Split ($5
Today, we mainly talk about analyzing logs through awk to quickly get the execution time. The performance and efficiency are greatly improved compared with the previous article.
Some time ago, I wrote an article about how to use shell scripts to
The awk array is an associated array. For... During in loop output, the unordered array is printed by default.
Copy codeThe code is as follows:[Chengmo @ localhost ~] $ Awk 'In in {info = "this is a test"; split (info, tA, ""); for (k in tA) {print
This article describes how to install CMake in the CentOS Operating System.
I. environment description
1. system: CentOS 6.4 i386 (min)
2. login user: root
3. version: CMake 2.8.10.2
4. Virtual Machine: Oracle VM VirtualBox
II. installation
In general, the disk format in Ubuntu is similar to that in Windows. First, find the USB flash drive icon and right-click it to format Ubuntu, but in one case, it is quite worried, when the partition fails to be identified, professional tools are
Ubuntu is a popular Linux operating system. based on the Debian release and GNOME desktop environment, Ubuntu is very easy to use and has good compatibility with Windows compared with other Linux releases.
Ubuntu is a popular Linux operating system.
Recently in the compilation of qt, before using debian6, gcc version is gcc-4.4, when using debian7, the compilation encountered a lot of different problems with debian6, debian7 default gcc uses gcc-4.7, this may be a problem with the compiler
A database of about 360 million queries. to improve query efficiency, optimize the database with optimizetabletable. name; a database named Tabledoesnotsupportoptimize, doingrecreate + analyzeinstead is about 360 million. to improve the query
For many users, Windows seems to slow down as time goes on. many users solve this problem by regularly reinstalling mongodws. However, do you really need to reinstall Windows on a regular basis? How often do you reinstall it? It is inconvenient to
The tftp server configuration is in redhatlinux5. for detailed steps, see Redhat
1. enter the root permission under the terminal. first check whether the tftp server and client components are installed. verify the command: rpm-qa | grep tftp (see
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