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38 lines
836 B
Plaintext
38 lines
836 B
Plaintext
---
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syntax: markdown
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tags: [tldr, common]
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source: https://github.com/tldr-pages/tldr.git
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---
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# readarray
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> Read lines from `stdin` into an array.
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> More information: <https://www.gnu.org/software/bash/manual/bash.html#index-readarray>.
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- Interactively input lines into an array:
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`readarray {{array_name}}`
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- Read lines from a file and insert them in an array:
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`readarray < {{path/to/file.txt}} {{array_name}}`
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- Remove [t]railing deliminators (newline by default):
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`readarray < {{path/to/file.txt}} -t {{array_name}}`
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- Copy at most `n` lines:
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`readarray < {{path/to/file.txt}} -n {{n}} {{array_name}}`
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- [s]kip the first `n` lines:
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`readarray < {{path/to/file.txt}} -s {{n}} {{array_name}}`
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- Define a custom [d]elimiter:
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`readarray < {{path/to/file.txt}} -d {{delimiter}} {{array_name}}`
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- Display help:
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`help mapfile`
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