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Names["string"]

gives a list of the names of symbols that match the string.

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Names[patt]

gives a list of names matching the arbitrary string pattern patt.

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Names[{patt₁,patt₂,…}]

gives a list of names matching any of the patt_i.

Details and Options

Names["string"] gives the same list of names as ?string.
Names returns a list of strings corresponding to the names of symbols.
The pattern patt can be given as a string with metacharacters, as StringExpression[…] or as RegularExpression["regex"].
The string can contain the following metacharacters:
* match zero or more characters

@ match one or more characters, but not uppercase letters
Names["context`*"] lists all symbols in the specified context.
With SpellingCorrection->True, Names includes names that differ in a small fraction of their characters from those specifically requested.
With IgnoreCase->True or SpellingCorrection->True, Names treats lowercase and uppercase letters as equivalent when matching names.
Names includes any names with a matching context alias by default. With ResolveContextAliasesFalse, only non-aliased matching names will be returned. »
Names[] lists all names in all contexts.

Examples

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Basic Examples (2)Summary of the most common use cases

Get the names of symbols starting with List:

In[1]:=1

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https://wolfram.com/xid/0givub-g0x3kn

Out[1]=1

Get the names of all system symbols:

In[1]:=1

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https://wolfram.com/xid/0givub-rccx

The set of those that have the Orderless attribute:

In[2]:=2

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https://wolfram.com/xid/0givub-euo9rp

Out[2]=2

Scope (3)Survey of the scope of standard use cases

Find all 2-character system functions using StringExpression:

In[1]:=1

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https://wolfram.com/xid/0givub-xm63qm

Out[1]=1

Find all 3-character system functions using RegularExpression:

In[1]:=1

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https://wolfram.com/xid/0givub-n0vr9e

Out[1]=1

Get all symbols that start with $ or with Plot:

In[1]:=1

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https://wolfram.com/xid/0givub-pysdlv

Options (3)Common values & functionality for each option

IgnoreCase (1)

Ignore the case when doing a search for a name:

In[1]:=1

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https://wolfram.com/xid/0givub-bcliuo

Out[1]=1

ResolveContextAliases (1)

Names resolves context aliases by default:

In[1]:=1

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https://wolfram.com/xid/0givub-ljn3oy

Out[1]=1

Use the ResolveContextAliases option to prevent alias resolution:

In[2]:=2

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https://wolfram.com/xid/0givub-iz9cwc

Out[2]=2

SpellingCorrection (1)

Return closely matching names:

In[1]:=1

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https://wolfram.com/xid/0givub-f3b4d8

Out[1]=1

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