Use of the Linux screen command

Reference URL: https://www.gnu.org/software/screen/manual/screen.html1 backgroundAs a system administrator, we often need SSH or telent telnet to a Linux server and often run tasks that take a long time to complete, such as system backup, FTP

Linux Rights Management

Three basic permissionsR Read permission (read)W Write permission (write)X Execute permission (execute)1th bit: File type (d directory,-normal file, L link file)第2-4位: The owning user right, denoted by U (user)第5-7位: The owning group permission,

Initial knowledge of Linux file management

Initial knowledge of Linux file management1. File System and directory structureThe file system starts from the root directory, using "/". Files with a. Start are hidden files, paths are separated by/represented. the hierarchical structure of the

A string that handles a column of copy in Excel under Linux, removing the end of line space and adding special fields

Background: Copy a column of data from Excel to TXT, and then put it under Lunx, and find that each line ends with a fixed number of spaces, and I want to add a fixed field to the end of each line and separate the output with commas.Cat

Linux Installation SNMP operation steps

1. Insert the corresponding version of the discThe disc will load automatically, and if you have a desktop, you'll see such icons on your desktop.650) this.width=650; "Src=" https://s4.51cto.com/wyfs02/M02/8F/42/wKioL1jZFVvRIAtdAAU7KhP4KM8941.png-wh_

Parameters of the date command of Linux system and methods of obtaining time stamp

Date instruction Related Usage exampleDate usage: date [OPTION] ... [+format]Date [-u|--utc|--universal] [MMDDHHMM[[CC]YY][.SS]]Enter Date directlyDate specified format display time: Date +%y_%m_%d, date +%y:%m:%dDate can be used to display or set

Linux System VPS host SSH common commands

PuttyQuery the "TEST" keyword in log text" Test " LOG.LOG.BAK2Ls-h Querying All FilesLs-l Querying all directoriesCd.. Back to upper levelCD h Enter h directoryThe biggest difference between Linux VPS and Windows VPS is that almost all operations

Linux Common Command collation

Keywords: Linux check process, kill process, START process1. Check processThe PS command finds the PID number associated with the process:PS A shows all programs under the current terminal, including other users ' programs.Ps-a Show All Programs.PS

Linux Standard directory Structure FHS

Because there are so many teams that use Linux to develop products or distribution, if everyone uses their own ideas to configure a directory for file placement, it can cause a lot of management problems. As a result, the Filesystem Hierarchy

Use Cronolog to cut Tomcat logs and delete log records before the specified number of days under Linux

Use the Cronolog tool to slice Tomcat's catalina.out log filesNormal user download, install Cronolog[[email protected] ~]$ tar-xf cronolog-1.6.2.tar.gz[[email protected] ~]$ CD Cronolog-1.6.2/[[email protected] cronolog-

Linux File system types

File systems for Linux:Root file system (root)Root filesystemLSB,FHS: (FileSystem heirace Standard)/etc,/usr,/var,/root,/home,/dev/boot: Boot file directory, kernel file (vmlinuz), boot loader (bootloader,grub) are stored in this directory/bin:

One Linux command per day (4): mkdir command

The Linux mkdir command is used to create a directory of the specified name, requiring the user who created the directory to have write permissions in the current directory, and the specified directory name cannot be a directory that is already in

Analysis of IP Nat details of Linux Bridge-the process of filling another hole

Pre-orderRecently Wenzhou leather shoes factory boss is busy learning Linux bridge and a lot of virtual network card related things, old wet gave some guidance, but the most fundamental still rely on Wenzhou boss himself. As if there is a fairy

Linux basic commands-Manage files and directories

Today I learned the understanding of Linux commands and the basic commands for managing files and directories in a Linux system.In Linux systems, a command is required to implement a function, and the execution of a Linux command relies on the shell

Summary of implementation of string interception method under Linux

The implementation of string interception under Linux can be broadly divided into two types, using commands to intercept, and using tools for interception. The specific interception methods are as follows:A, #截取, can be implemented to delete the

One Linux command per day (8): CP command

The CP command is used to copy files or directories and is one of the most commonly used commands in a Linux system. In general, the shell sets an alias, and when the file is copied at the command line, if the destination file already exists, it

Linux operation and Maintenance management UNIT6

file permissions:ls-ld/mnt/Drwxr-xr-x. 2 root root 6 Mar 2014/mnt/-|rwxr-xr-x.| 2|root|root|6| Mar 2014|/mnt— —————————— — ———— ———— — ——————————— ———1 2 3 4 5 7 8 91: File type, non-modifiable-: FileD: catalog (directory)L: Linked file (link)B:

linux--Backup and restore--tar command

bz2

File compression and decompressionTar commandThe TAR command creates archives for Linux files and directories.With tar, you can create files (backup files) for a specific file, or you can change files in the file or add new files to the file. Tar

Linux Learning Notes (i)-file directory-related commands && file wildcard characters

Overview of a few commands1. View the directory and the files under the directory:ls(-a displays the hidden file;-D displays the directory itself;-L displays the details;-R recursive display, that is, the file of the directory is also displayed;-h

The basic features of bash in operation and Maintenance Foundation--linux

The basic features of bash are as follows:First, the alias of the command--alias commandThe alias used to define and display the command, UNALIAS to revoke the defined alias, but note the following:The effect of 1.alias is limited to the lifetime of

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