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1. Xargs Usage Detailed   because many commands do not support | Piping to pass parameters, and there is a need in daily work, there is a xargs command, such as: find/sbin-perm +700 |ls-l This command is wrong. find/sbin-perm +700 |xargs ls-l This

Introduction to DNS query process and DNS Process Reprinted please indicate the source: http://blog.csdn.net/luotuo44/article/details/45545059 DNS (domain name system) is a system that can convert domain names to IP addresses. This allows us to

Reprint Please specify Source: http://blog.csdn.net/luotuo44/article/details/45545059DNS (domain Name System), readers have heard more or less that the domain name can be converted to an IP system. Makes it possible for us to access a website simply

The processor architecture of the Arch Display Machine (1) UNAME-M display the processor architecture of the Machine (2) uname-r shows the kernel version being usedDMIDECODE-Q Display hardware system components-(SMBIOS/DMI) hdparm-i/dev/hda A list

I. File, directory Operation command1. ls commandFeatures: Displays information about files and directoriesLS Displays the list of current directory files by defaultLs-a Show all files including hidden filesLs-l display file attributes, including

Background: Install RAC, when installing GI cluster management software, at the end of the final, always reported as ins-error#官方文档: Error description; string parsing failedINS-20802: string failed.Cause:the plug-in failed in its perform