Linux

1. Installation Development Package Group Yum Groupinstall "Development Libraries" "Development Tools" 2. Install other Packages Yum install-y libaio glibc compat-libstdc++-33.x86_64 elfutils-libelf-devel\* gcc-c++ libaio-devel unixODBC\* readline\

The application resources added in the Sureha cluster may always be in a startup state, and the Wait timeout (default 1800 seconds) prompts for failure, as shown in the following figure: Solution: This problem occurs because the HA software is

Look in the log to see that the disk has fsck operations, as shown in the following figure: Reason Analysis:In a Linux sureha cluster, the default setting for a certain number of disk mounts automatically occurs after the fsck operation. When

Ext2ed can directly process data on hard disk partitions. This command is only available in Red Hat Linux.SyntaxExt2edGeneral commands: Setdevice [Device Name] specifies the device to process. Disablewrite sets ext2ed to read-only.

Execute the repquota command to report disk space restrictions and clearly know how much space each user or group has used.SyntaxRepquota [-aguv] [file system...]Parameter description: -A is listed in the/etc/fstab file, which shows the usage of

Run the quota command to query the disk space limit and learn how much space is used.SyntaxQuota [-quvV] [user name...] or quota [-gqvV] [group name...]Parameter description: -G is used to list the disk space limits of a group. -Q: A Concise

Du displays the disk space occupied by the specified directory or file.SyntaxDu [-abcDhHklmsSx] [-L ] [-X ] [-- block-size] [-- exclude = ][-- Max-depth = ] [-- help] [-- version] [Directory or file]Parameter description: -A or-all indicates the

Displays records in the directory stack.SyntaxDirs [+/-n-l]Parameters: + N indicates the n directory from the left. -N: displays the n directory from the right. -L displays the complete directory records.InstanceLists the details of all

FTP allows users to download files stored on the remote host and upload files to the remote host. Tftp is a simple text-mode ftp program, which uses commands similar to FTP.SyntaxTftp [host name or IP address]Operation instructions: Connect:

When other hosts transmit files through UUCP, you can use the uupick command to retrieve these files.SyntaxUupick [-v] [-I ] [-s ] [-x ] [-- help]Parameters: -I or -- config specifies the configuration file. -S or -- system processes files

This program can view the printer queue status and the print tasks it contains.SyntaxLpq [l] [P] [user]Parameter description: -P specifies a PRINTER. Otherwise, use the default PRINTER or the PRINTER specified by the environment variable PRINTER.

The lpr (line printer, print by line) utility is used to put one or more files into the print queue for printing.SyntaxLpr [-P printer]Parameters: -P Printer: send data to the specified Printer. The default value is lp.InstanceThe following

The Linux locate command is used to find a document that meets the criteria. It stores the document and directory name in the database to find the document or directory that meets the template style criteria.Generally, you only need to enter locate

The Linux gitview command is used to view the content of a file. It displays both hexadecimal and ASCII characters.SyntaxGitview [-bchilv] [file]Parameters:-B monochrome mode, color is not displayed using ANSI control code.-C color mode: use an ANSI

The most basic command of more is to press space to display it on the next page. Press B to display it on the back page, in addition, the string search function (similar to vi) is provided. For instructions in use, Press h.SyntaxMore [-dlfpcsu]

The inux chgrp command is used to change the group to which the file or directory belongs.In the UNIX system family, the control of file or directory permissions is managed by the owner and its group. You can use the chgrp command to change the

Linux/Unix file calling permissions are divided into three levels: file owner, group, and others. Chmod can be used to control how files are called by others.Permission: all usersSyntaxChmod [-cfvR] [-- help] [-- version] mode file...Parameter