unset

Meanings

• Verb

  To reverse the setting or state of something, often used in relation to variables in computer programming.

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Synonyms

clear

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Variants

List of all variants of unset that leads to same result
unset

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Etymology

origin and the way in which meanings have changed throughout history.

Originally comes from the Old English word 'unsettan' which means 'to undo' or 'to unfasten'.

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Trivia

Any details, considerations, events or pieces of information regarding the word

1. In Unix shell scripting, the 'unset' command can also be used to remove all variables that match a given pattern.

2. The 'unset' command is not limited to just variables, it can also be used to remove other types of shell variables such as functions and aliases.

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Related Concepts

informations on related concepts or terms closely associated with the word. Discuss semantic fields or domains that the word belongs to

1. set (command): The opposite command to unset, used to assign a value to a variable.

2. variable: A named location in a computer program where a value can be stored and changed.

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Culture

Any cultural, historical, or symbolic significance of the word. Explore how the word has been used in literature, art, music, or other forms of expression.

In programming, 'unset' is commonly used in Unix shell scripting and other command-line interfaces to remove or delete the value of a variable.

How to Memorize "unset"

1. visualize
   

   - Imagine a variable with a value assigned to it, and then use the 'unset' command to remove that value.

2. associate
   

   - Associate 'unset' with the idea of removing or deleting a value or setting.

3. mnemonics
   

   - Use the mnemonic 'U' for unset and 'N' for no value or null to remember its meaning.

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