Batch file name modification under Linux (rename)

Original address: http://blog.csdn.net/sea_shore/article/details/61024371.rename Command Batch modified file name, in fact, Linux can use other methods to batch change the file name, but rename is too convenientFor example, change all the tables to

One Linux command per day: Linux chmod command

The chmod command is used to change access rights for Linux system files or directories. Use it to control access to files or directories. There are two ways to use this command. One is a text-setting method that contains letters and operator

Linux Document Viewer

1. Download the corresponding version zeal:https://zealdocs.org/download.htmlFor example, I am the Ubuntu counterpart command is:sudo add-apt-repository ppa:zeal-developers/sudo apt-sudoinstall ZealExecute command: Zeal will open the Zeal Viewer,

Actual User ID (valid group) and valid user ID (valid group ID) for the process under Linux

Actual User ID (actual group ID): Identifies who the current user (belongs to) is and is taken from the password file when the user logs on.Valid user ID (valid group ID): Used to determine our (current process) access to the file (that is, the

One Linux command per day: Linux chmod command

The chmod command is used to change access rights for Linux system files or directories. Use it to control access to files or directories. There are two ways to use this command. One is a text-setting method that contains letters and operator

Linux PS command

PS-A List All ProcessesName: PSUsage rights: All usersHow to use: PS [options] [--help]Description: Shows the dynamics of the instantaneous stroke (process)Parameters: The parameters of PS are very many, only a few common parameters are listed here

Linux Command learning Note: Linux chmod command

the chmod command is used to change access rights for Linux system files or directories. Use it to control access to files or directories. There are two ways to use this command. One is a text-setting method that contains letters and operator

Detailed Linux mutex Pthread_mutex and condition variable Pthread_cond

[CPP] View plaincopy =============================================================intpthread_create (pthread_t*Tid,Constpthread_attr_t *attr,void* (*start_routine) (void*), void*Arg); //The parameter tid is used to return the thread

Banking rounding for Decimal rounding off on Linux

Hi all,After I investigated CCR below, I found an rounding issue. The issue is, we can get different resultBetween Linux and Windows platform when we do the decimal rounding with string format or printfunction.Refer to the screenshots first.Pic1

(RPM) One Linux command per day: MV

The MV command is the abbreviation for move, which can be used to move files or rename files (rename), which is a common command under Linux, often used to back up files or directories.1. Command format:MV [option] source file or directory

Copy the entire directory under Linux

The function of this command is to copy the given file or directory to another file or directory, just like the Copy command under DOS, which is very powerful.syntax : CP [option] source file or directory destination file or directoryNote : This

Kill-Terminate process/Send signal of the Linux command I used

Description of UseThe KILL command terminates the specified process (terminate a process) and is a common command for process management under Unix/linux. In general, we use tools such as ps/pidof/pstree/top to get the process PID when we need to

How to make UTC in a Linux system consistent with CST

First, the basic conceptUTC is the Universal time coordinated abbreviation, which is defined and recommended by the International Radio Advisory Committee and is maintained by the International Time Bureau (BIH) in seconds-based time scales.UTC is

A full-process record of the fall of Linux server into broiler

1 from the firewall paralysis.March 10, 2015, not yet the company was called to tell the office can not connect to the Internet, the network is very slow, unable to browse the Web. Rush to feel the company and start looking for problems.The switch

Creation and use of dynamic link libraries in Linux systems {supplemental}

As you know, there are a lot of dynamic link libraries in Windows systems (files with a. dll suffix, DLL is the dynamic link library). This dynamic link library, unlike the static function library, its functions are not part of the execution program

The creation and use of dynamic link library in Linux system

As you know, there are a lot of dynamic link libraries in Windows systems (files with a. dll suffix, DLL is the dynamic link library). This dynamic link library, unlike the static function library, its functions are not part of the execution program

Linux Package Management

gpg

The software management mechanisms commonly used under Linux systems are in the form of source code and the rpm (Redhat Package Manager) packet management mechanism, in which we will explain the two software management mechanisms.RPM Package

Linux Learning Notes < 25 >--OPENSSL Services

OpenSSL Service: Open source implementation of SSL, official site www.openssl.orgCompositionLibcrypto: Universal Encryption LibraryImplementation Library of Libssl:tls/sslSession-based TLS/SSL library for identity authentication, data

Use the mkdir command to create directories and subdirectories under Linux

What is mkdir?Mkdir is a command to create a directory under a Linux system. This command is part of the built-in command.Run the mkdir commandYou can use it by typing mkdir directly in your console. $ mkdir By default, running the

Linux semaphore signal 0< turn >

We can use Kill-l to see all the semaphore interpretations, but we don't see the explanation for signal 0.[[Email protected]~]# kill-l 1] SIGHUP 2) SIGINT 3) sigquit 4) Sigill 5) SIGTRAP 6) SIGABRT 7) Sigbus SIGFPE 9)

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