user identifier


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user identifier

(operating system)
1. (Or "uid", "user id") A number or name which is unique to a particular user of a computer or group of computers which share user information. The operating system uses the uid to represent the user in its data structures, e.g. the owner of a file or process, the person attempting to access a system resource etc.

A user database, e.g. Unix's /etc/passwd file or NIS, maps the uid to other information about that user such as their user name, password, home directory and real name.

2. user name.
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References in periodicals archive ?
Also, if a password file is not properly protected against writing, a clever perpetrator may be able to edit the password file and insert a bogus but viable self-chosen user identifier and password (encrypted as needed), or to install a variant password file.
The leaked information that included user identifiers, real names, traders' e-mail addresses, confidential financial price information and trading activity dates from 2009 and 2010, was freely available online and could be easily found through a simple Google search, the Voice of Russia reported.
I regret that we will probably continue to be plagued by artificial user identifiers and passwords that must be changed frequently.