Browse Definitions :
Definition

wildcard character

A wildcard character is a special character that represents one or more other characters. The most commonly used wildcard characters are the asterisk (*), which typically represents zero or more characters in a string of characters, and the question mark (?), which typically represents any one character. For example, in searching:

run*
                                     
would mean "any word that starts with 'run' and has any kind of ending." If you entered "run*" at a search engine that offered a wildcard character capability, you would get results for run, runs, running, runner, runners - in short, any possible word that might begin with the three letters.

Wildcard characters are used in regular expressions (a form of programming in which input data is modified based on specified patterns) and in searching through file directories for similar file names (for example, if all the work files on a project start with the characters "P5," you could easily locate all the project files by simply searching for "P5*").

A wildcard character is a type of meta character . In various games of playing cards, a wild card is a designated card in the deck of cards (for example, the two of spades) that can be used as though it were any possible card.

This was last updated in June 2010

Join the conversation

1 comment

Send me notifications when other members comment.

Please create a username to comment.

How is this related to destructive input?
Cancel

-ADS BY GOOGLE

File Extensions and File Formats

SearchCompliance

  • compliance audit

    A compliance audit is a comprehensive review of an organization's adherence to regulatory guidelines.

  • regulatory compliance

    Regulatory compliance is an organization's adherence to laws, regulations, guidelines and specifications relevant to its business...

  • Whistleblower Protection Act

    The Whistleblower Protection Act of 1989 is a law that protects federal government employees in the United States from ...

SearchSecurity

  • payload (computing)

    In computing, a payload is the carrying capacity of a packet or other transmission data unit. The term has its roots in the ...

  • passphrase

    A passphrase is a string of characters longer than the usual password (which is typically from four to 16 characters long) that ...

  • Web application firewall (WAF)

    A Web application firewall (WAF) is a firewall that monitors, filters or blocks traffic to and from a Web application. WAFs are ...

SearchHealthIT

SearchDisasterRecovery

SearchStorage

  • computational storage

    Computational storage is defined as an architecture that couples compute with storage in order to reduce data movement. In doing ...

  • data deduplication

    Data deduplication -- often called intelligent compression or single-instance storage -- is a process that eliminates redundant ...

  • public cloud storage

    Public cloud storage, also called storage-as-a-service or online storage is a service model that provides data storage on a ...

Close