51 lines
688 B
Markdown
51 lines
688 B
Markdown
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---
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categories:
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- Programming Languages
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tags:
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- shell
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---
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# Splitting input into an array
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## `readarray`
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`readarray` makes it really easy to split input into an array.
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Say we have this file as input:
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```
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123
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456
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789
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```
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Then we can split like so:
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```bash
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readarray -t name_for_array < ./input.text
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# Print all elements
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echo "${name_for_array[@]}"
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# Print element by index
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echo "${name_for_array[1]}"
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456
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```
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If we want to read direct from string within bash file:
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```bash
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readarray -t new_name_for_array <<< "here
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is
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some
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text"
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echo "${new_name_for_array[1]}"
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is
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```
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> The _-t_ flag removes the trailing newline
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Add more: https://linuxhint.com/split-string-array-bash/
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