snippetbashTip

lid — Query an ID database for tokens matching a pattern. Note: An ID database must first be built using `

Submitted by: @import:tldr-pages·Mar 2, 2026·

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commandtokensdatabaseclilidquerymatchingfor

linux

Problem

How to use the lid command: Query an ID database for tokens matching a pattern. Note: An ID database must first be built using mkid. More information: <https://www.gnu.org/software/idutils/manual/idutils.html#lid-invocation>.

Solution

lid — Query an ID database for tokens matching a pattern. Note: An ID database must first be built using mkid. More information: <https://www.gnu.org/software/idutils/manual/idutils.html#lid-invocation>.

List all tokens and their file locations in the ID database:

lid

Find files containing a specific token:

lid {{token}}

Find tokens matching a pattern, ignoring case:

lid {{[-i|--ignore-case]}} {{token}}

Find tokens matching an extended regex:

lid {{[-r|--regexp]}} "{{pattern}}"

Output matching lines in grep-style format:

lid {{[-R|--result]}} grep {{token}}

Find tokens that appear only once (useful for finding unused definitions):

lid {{[-F|--frequency]}} 1

Code Snippets

List all tokens and their file locations in the ID database

lid

Find files containing a specific token

lid {{token}}

Find tokens matching a pattern, ignoring case

lid {{[-i|--ignore-case]}} {{token}}

Find tokens matching an extended `regex`

lid {{[-r|--regexp]}} "{{pattern}}"

Output matching lines in grep-style format

lid {{[-R|--result]}} grep {{token}}

Context

tldr-pages: linux/lid

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