CentOS System Fault Analysis and troubleshooting
I. Log Analysis and Management
1. log file classification
Kernel and system logs
System Service syslog Management
User logs
Records Information about system user logon and exit.
Program log
Log files
Linux tmux Study Notes tmux is known as a substitute for screen. Let's see why: it supports pasting/copying between multiple windows, and you can choose to paste the buffer zone, which is not supported by screen. The split screen operation wins.
View system hardware information in Centos [root @ yongsen ~] # Uname-a # linux system information command for viewing kernel/operating system/CPU information [root @ yongsen ~] # Head-n 1/etc/issue # view the operating system version. The value is 1
Command for viewing system status in Linux
Iostat
The iostat command details the storage subsystem. You usually use iostat to monitor the running status of the storage subsystem, and detect the slow input/output before the user notices that the
root directory structure/bin the directory where the common binary directory is located/boot Liunx kernel and files required for boot program/dev Device file directory[email protected] ~]$ ll/dev/sd*Config file default path for/etc Binary
# Uname-A # view kernel/operating system/CPU Information# Head-N 1/etc/issue # view the operating system version# Hostname # view the computer name# Lspci-TV # list all PCI devices# Lsusb-TV # list all USB devices# Lsmod # list loaded Kernel Modules#
Abstract: There are many tools for viewing and counting disk partition tables and file systems in Linux. Some tools are versatile, not only viewing disk partition tables, but also performing disk partition operations; however, in this article, we
Here, I will summarize my development experience and be familiar with kernel device nodes, which is helpful for Kernel-related driver learning and development.
1. View CPU Information
On the android application settings page, you can view
Proc is a virtual file system. In Linux, it is mounted on the/proc directory. Proc has multiple features, including the ability for users to access kernel information or to troubleshoot issues. One of these features is very useful, it is also a more
/Bin binary executable command/Dev Device Files (hard drive/Optical Drive, etc)/ETC system management and configuration fileConfiguration files and scripts started by/etc/rc. d/Home user home directory, which contains folders with the login user
1. proc file system
The proc file system is a pseudo-file system that only exists in the memory and does not occupy the external storage space. It provides interfaces for accessing system kernel data in the form of a file system. Users and
Linux viewing System Information commands are essential for Linux beginners, and these commands are also useful because the first thing you can do to get into Linux is to look at the system information first, so the necessary systems to learn about
Linux viewing System Information commands are essential for Linux beginners, and these commands are also useful because the first thing you can do to get into Linux is to look at the system information first, so the necessary systems to learn about
1./proc DirectoryThe Linux kernel provides a mechanism for accessing kernel internal data structures and changing kernel settings at run time through the/proc file system. The proc file system is a pseudo-file system that only exists in memory and
Linux System Information View command[Guide] system uname-a View kernel OS CPU Information Head-n 1 etc issue view OS version cat proc cpuinfo View CPU information hostname View computer name Lspci-tv List all PCI devices LSUSB-TVSystem# uname-a
Linux Directory Trees (directory tree)Hierarchies (unlike database file systems), the maximum length of a single file/directory is 255 characters and the full path is 4,096 charactersSpecial File System
File system
Mount point
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