all linux commands

When writing operations scripts in Python, it is often necessary to execute the commands of the Linux shell, the commands module in Python is dedicated to invoking the Linux shell command and returning the status and results, here are the 3 main functions of the commands mod

Detailed explanation of linux sed commands and sed commandsIntroduction Sed is an online editor that processes a row of content at a time. During processing, the currently processed rows are stored in the temporary buffer, called the pattern space. Then, the sed command is used to process the content in the buffer, send the buffer content to the screen. Next, process the next row, and repeat until the end o

When writing operations scripts in Python, it is often necessary to execute the commands of the Linux shell, the commands module in Python is dedicated to invoking the Linux shell command and returning the status and results, here are the 3 main functions of the commands mod

uname: Viewing kernel-related informationParameters:-A,--all: all system related information, including the following data will be listed-S,--kernel-name: System kernel Name-N,--nodename: Print network node host name-R,--kernel-release: Kernel version-M: The hardware name of the system, such as i686 or x86_64;The type of-P:CPU, similar to-M, just shows the type of CPU-I: Hardware platform (ix86)-O,--operati

This article is mainly used for common commands of the memo, the specific usage can be viewed by man, or query other information.CD: Changing the working directoryLS: List contents of directorymkdir: Create a directoryCat: Connect and display information about one or more of the files specifiedCP: Copy the given file or directory to another file or directoryMV: Renaming files or directories or moving files from one directory into anotherRM: Delete one

chmodSyntax: chmod [{ugoa}{+-=}{rwx}] [file or directory] For example chmod g+w testfile[mode=421] [File or directory]-R recursive modifications such as Chmod-r 777 TestDirModify directory testfile directory files for all users with full permissionsSummary of File directory permissionsRepresents the meaning of the character permission on the file to the directoryR Read permission to view the contents of a file to list content in a directoryW Write per

, for renaming8. Delete Files: RMRM-RF [File or directory]:-R Remove Directory-F EnforcementDelete the directory with-RF, or you will be constantly prompted to delete every file in the directory9. Create an empty file: TouchTouch japanlove.list10. Display file contents: Cat [FileName]-N: Show line numbers11. Display file contents: TAC [FileName]12. Paging Displays the contents of the file: more [filename](space) or F: Page turn(Enter): line breakQ or Q: Exit13. Paging Displays the contents of th

46.1 Mkfontdir: Creating an index of X font files 46.2 Dumpiso: Dumps the IEEE 1394 synchronous channel packets 46.3 iconv: Convert file Encoding 46.4 Hash: Display and delete hash tables 46.5 Isb_release: Displays information about LSB and specific versions 46.6 locale: Get a specific language environment 46.7 nm: List Symbols from objects 46.8 RMT: Remote disk Creation Protocol module 46.9 Lscgroup: List all the cgroups 46

In linux, make, clean, and their combined commands first look at what is makefilemakefile, which defines a series of rules to specify, which files need to be compiled first, and which files need to be compiled later, which files need to be re-compiled, or even perform more complex functional operations, because makefile is like a Shell script, which can also execute operating system

Excerpted from http://my.oschina.net/syyzhan/blog/2775361. View Log filesUse the command: Cat or tail-f (default view file trailing 10 lines)Related log files:/var/log/messages system startup information and error log, which is one of the most commonly used logs in red Hat Linux/var/log/secure Security-related log information/var/log/maillog message-related log information/var/log/cron log information related to timed tasks/var/log/spooler log informa

(mm/dd/yy format) %T Display time format, 24-hour (HH:MM:SS) %x Format of the display date (MM/DD/YY) %y The last two digits of the year %Y Years (e.g. 2007, 2008) %r Time (Hh:mm:ss morning or afternoon) %p Show morning or afternoon If you enter a command:Date "+%x,%r"The system returns the following information:March 26, 2010, 18:06 P.M. 49 seconds4.7 cal CommandThe CAL co

In the use of dd commands in linux disk management commands, the system administrator wants to know the functions of dd commands. Many users also know about most linux disk management commands, discuss the dd command with you. Aft

The cat command is used to print the connection file to the output deviceCat is the basic Text Output command for Linux and is typically used to view the contents of a file.GrammarCat (Parameters) (option)-N or--number: Numbers the number of rows for all outputs starting from 1.-B or--number-nonblank: Similar to-n, except that blank lines are not numbered.-S or--squeeze-blank: a blank line that is substitut

Use python to execute linux commands and pythonlinux commands Python version 2.7.12 1. Obtain the execution result of a linux Command. For example, obtain the process tree structure of a PID. the linux Command is pstree-p pid, which can be easily obtained by a module in pyth

passwd command The use of PASSWD commands is many, for beginners, the general is to modify or set the password, we can view its basic parameters through the passwd-h command.1[Email protected]:~#passwd-h2Usage:passwd[Options] [LOGIN]3 4 Options:5-A,--All report password status on all accounts6-D,--delete delete the password forThe named account7-E,--expire

Scp commands for Linux learning and XCOPY commands for Windows1. Basic Concepts scp commands are used to transmit data between Linux and Linux Hosts. Simply put, a linux host can transm

installed, even if there is no network card, pensive IP The address can also be ping through. And, even if ping a host and ping , and not necessarily the network has a problem, there are many kinds of possible causes this situation, and later to study carefully.4. ifconfig [/sbin/ifconfig] #用于查看网卡信息, the-a option is added by default in Linux , but in UNIX The add-a option must be displayed in the system . e.g.IfconfigIfconfig eth0// View physical

BCD or MV-T target sourceExamplesRename in the same directory, there is an ABC file can be the MV ABC BCD to rename the ABC to BCDFile : Used to view the types of normal and system filesRMRM: Deleting files-I: interactive delete-F: Violent deletion-R: recursive deletecommands can be combined withTouchTouch: Create a file-C: The file is not created when it exists-A: Change the access time of the file only-M: Change the file's modification time only-T: Set the timestamp of the file (month and day

Common Linux commands (5) -- compression and decompression commands 1. Command name: gzip www.2cto.com execution permission: All Users Function Description: Compressed File Syntax: gzip option [file] compressed format :. gz gzip can only compress files, but cannot compress directories. After gzip is compressed, the ori

when the contents of the file are printed, but also that multiple lines are repeated only as one row (table ignores)-D: Indicates the output of all duplicate rows when the contents of the file How many rows show how many rows-u: Indicates that when the contents of a file are printed, only the contents of all the distinct rows in the file are output, and-I: Indicates that the file is not case-sensitive when