Tag: man

[Comprehensive explanation of Linux commands] 116.umount command: a practical tool for unloading a loaded file system

Article directory umount Additional information grammar Options parameter Example Learn `python` from scratch umount Used to unmount a mounted file system Supplementary instructions The umount command is used to unmount a mounted file system. You can umount the file system using the device name or mount point, but it is best to unmount it through […]

[Comprehensive explanation of Linux commands] 123.SSH-Add and Useradd: Linux commands for managing users and keys

Article directory ssh-add Additional information grammar Options Example useradd Additional information grammar Options parameter exit value document Example Learn `python` from scratch ssh-add Add the private key to ssh-agent’s cache. Supplementary instructions The ssh-add command adds a private key to the ssh-agent’s cache. This command is located in /usr/bin/ssh-add. Grammar ssh-add [-cDdLlXx] [-t life] [file […]

[Comprehensive explanation of Linux commands] 120. Master the badblocks command and check hard disk bad sectors in time

Article directory badblocks Additional information grammar Options parameter Example other Learn `python` from scratch badblocks Find corrupted blocks on disk Supplementary instructions The badblock command is used to find damaged blocks on the disk. The hard disk is a wear-and-tear device, and physical failures such as bad sectors may occur after being used for a […]

[Comprehensive explanation of Linux commands] 121. Practical tips for using the dd command to copy and convert files

Article directory dd Additional information grammar Options Example Generate random string Learn `python` from scratch dd The dd command is used to copy files and convert and format the contents of the original files. Supplementary instructions The dd command is used to copy files and convert and format the contents of the original files. The […]

[Comprehensive explanation of Linux commands] 124.e2fsck: Tool for checking and repairing the second extended file system

Article directory e2fsck grammar Options parameter Example Learn `python` from scratch e2fsck e2fsck is used to check the integrity of the second extended file system and try to fix errors with the appropriate options. The returned value after execution and its representative meaning are as follows: 0 No errors occurred. 1 A file system error […]

[Comprehensive explanation of Linux commands] 128. How to create, set up and manage SWAP swap partitions

Article directory mkswap Create and set up SWAP swap partition Additional information grammar Options parameter Example Learn `python` from scratch mkswap Create and set up SWAP swap partition Supplementary instructions The mkswap command is used to create a swap partition on a file or device. After creation, use the sawpon command to start using this […]

[Comprehensive explanation of Linux commands] 125. Hard disk maintenance and tuning: Use of fsck and hdparm commands

Article directory fsck Additional information grammar Options parameter Example hdparm Additional information grammar Options parameter Example Learn `python` from scratch fsck Checks and attempts to repair errors in the file system Supplementary instructions The fsck command is used to check and attempt to repair errors in the file system. When an error occurs in the […]

[Kernel driver] Kernel module commands

00. Directory Article directory 00. Table of Contents 01. Overview 02. insmod 03. lsmod 04. depmod 05.rmmod 06. modinfo 07. The system automatically loads modules 08. Appendix 01. Overview We have compiled our own kernel module as expected, and now it is time to understand how to use this kernel module. Copy test.ko to the […]