nushell/docs/commands/str_index-of.md

title	layout	version
str index-of	command	0.59.1

Returns starting index of given pattern in string counting from 0. Returns -1 when there are no results.

Signature

> str index-of (pattern) ...rest --range --end

Parameters

• pattern: the pattern to find index of
• ...rest: optionally returns index of pattern in string by column paths
• --range {any}: optional start and/or end index
• --end: search from the end of the string

Examples

Returns index of pattern in string

>  'my_library.rb' | str index-of '.rb'

Returns index of pattern in string with start index

>  '.rb.rb' | str index-of '.rb' -r '1,'

Returns index of pattern in string with end index

>  '123456' | str index-of '6' -r ',4'

Returns index of pattern in string with start and end index

>  '123456' | str index-of '3' -r '1,4'

Alternatively you can use this form

>  '123456' | str index-of '3' -r [1 4]

Returns index of pattern in string

>  '/this/is/some/path/file.txt' | str index-of '/' -e