Home PC Games Linux Windows Database Network Programming Server Mobile  
           
  Home \ Linux \ Wildcards and special symbols usage comments under Linux     - VMware virtual machine operating system log Error in the RPC receive loop resolve (Linux)

- RHEL 6.4 installed MySQL 5.6.27 (Database)

- AngularJS (Programming)

- awk Programming Model (Programming)

- How to use the internal network IP forwarding to connect to the Internet on Linux (Linux)

- Easy to get hidden administrator account (Linux)

- CentOS 7.0 Experience with previous versions (Linux)

- C ++ implementation of the list of basic operations and test cases (Programming)

- About phpwind 5.01-5.3 0day analysis of the article (Linux)

- CentOS7 + Redis Live Installation and Configuration (Linux)

- C # function (Programming)

- Android Studio commonly used shortcuts and how to follow the Eclipse Shortcuts (Linux)

- Integrated security administrator Linux accident management (Linux)

- Ubuntu 14.10 How to install office suite Calligra Suite 2.8.7 (Linux)

- Java data structures - order linear form of table ArrayList (Programming)

- How to install Hadoop on CentOS7 (Server)

- Debian GNU / Linux service list acquisition, shutting down services or run (Linux)

- Some common Linux commands Study Notes (Linux)

- Qt for file splitting and fusion gadgets (Programming)

- To install Emacs under CentOS 6.5 (Linux)

 
         
  Wildcards and special symbols usage comments under Linux
     
  Add Date : 2018-11-21      
         
         
         
  In Linu systems we encounter some special symbols, let me give you roughly say something

* Represents 0 or more special characters

Examples of yum. * Representatives can make yum. May be yum.a, yum.ab, yum.abc course after the decimal point may have more than one letter

? Represents any one character

Examples of yum.? May be yum.a yum.b yum.c ...... but be aware that the decimal point must have any one character

[] Is represented by any one of the brackets

Examples [abcdef] can be a b c d e f any one letter can of course also be a number

[-] Represents a range

Examples [a-z] it is represented by the letters a to z all letters between

[^] ^ Reverse select the symbol from the literal meaning you can also know the meaning of right and wrong

Examples [^ abc] represents a b c they do not any of these three characters on the choice of a

... ... ... ...

Here to tell you some special symbols

Explanatory notes #

We can then look at the effect of exercise time by some of the key things commented

$ Variable symbol

\ General escape character used in writing long wildcards we can put special characters or wildcard characters escaped as general

; Segmentation continuous command symbol

This very easy to use if you want to write a script, then you can use this method

Examples cp / etc / tmp; ls / tmp; cd etc; rm etc

{} Is the middle command block

Perform '' anti-dot in the middle

/ Directory symbol path segmentation

& Put into the background to perform the job

- The user's home folder

! Non-logical operations on

> >> Redirect the output data stream guide> will overwrite the original >> will append the last line of text below

< < < Redirect input data stream and guide the use of their own experience almost above
     
         
         
         
  More:      
 
- exp / imp Export Import version of the problem and the ORA-6550 error (Database)
- Struts2 dynamic call DMI and error Solution (Programming)
- MySQL binlog group to submit XA (two-phase commit) (Database)
- Linux uses shared memory communication process synchronization Withdrawal (Programming)
- EXP-00091 Error resolved (Database)
- Configuration OpenOCD + FT2232 under Ubuntu (Linux)
- Java String and StringBuffer and StringBuilder Comments (Programming)
- TNS-03505 name could not be resolved (Database)
- Linux Desktop allows exceptionally different launch applications (Linux)
- Analyzing Linux server architecture is 32-bit / 64-bit (Server)
- Linux using DenyHosts prevents ssh cracks (Linux)
- AIX system file security aspects (Linux)
- CentOS5 installation Nodejs (Linux)
- MariaDB phpMyAdmin installation and configuration issues to resolve under CentOS7 (Database)
- How a lot of blocking malicious IP address in Linux (Linux)
- Virt Related Command Summary (Linux)
- Installation of Gitlab under Ubuntu (Linux)
- Linux character device - a simple character device model (Linux)
- MySQL Error Code Complete (Database)
- Vi (Vim) keyboard map and its basic commands (Linux)
     
           
     
  CopyRight 2002-2020 newfreesoft.com, All Rights Reserved.