try

For core.

Command Type

keyword

Signature

> try {flags} (try_block) (catch) (finally)

Parameters

• try_block: Block to run.
• catch: Closure to run if try block fails.
• finally: Closure to run anyway.

Input/output types:

Examples

Try to run a division by zero.

> try { 1 / 0 }

Try to run a division by zero and return a string instead.

> try { 1 / 0 } catch { 'divided by zero' }
divided by zero

Try to run a division by zero and report the message.

> try { 1 / 0 } catch { |err| $err.msg }

Try to run a division by zero, report the message, and run finally

> try { 1 / 0 } catch { |err| print $err.msg } finally { 'clean' }

Notes

This command is a parser keyword. For details, check: https://www.nushell.sh/book/thinking_in_nu.html

Ported from nushell/nushell.github.io. Copyright (c) 2021 Nushell Project. MIT License.