sfdx non:existing:command gives exit code 0 if run in scripts (no terminal / stdin attached)

[busybox0]

Summary

sfdx non:existing:command gives exit code 0 if run in scripts (no terminal / stdin attached)

Steps To Reproduce in Bash terminal:

1. sfdx non:existing:command 0<&- The command 0<&- tells to block input from stdin like it would work in CI/automations. Only put it to test interactively.
2. echo $? # gives 0 (zero).

Steps To Reproduce in cmd.exe:

1. sfdx non:existing:command <nul The command <nul tells to block input from stdin like it would work in CI/automations. Only put it to test interactively.
2. echo %errorlevel% # gives 0 (zero).

Expected result

Exit code must be non-zero, as it's typo or missing plugin.

Actual result

Exit code is 0.

System Information

Reproduced in bash and cmd.exe

sfdx version --verbose --json
{
"cliVersion": "sfdx-cli/7.158.1",
"architecture": "wsl-x64",
"nodeVersion": "node-v14.17.6",
"pluginVersions": [
"@oclif/plugin-autocomplete 0.3.0 (core)",
"@oclif/plugin-commands 1.3.0 (core)",
"@oclif/plugin-help 3.3.1 (core)",
"@oclif/plugin-not-found 1.2.6 (core)",
"@oclif/plugin-plugins 1.10.11 (core)",
"@oclif/plugin-update 1.5.0 (core)",
"@oclif/plugin-warn-if-update-available 1.7.3 (core)",
"@oclif/plugin-which 1.0.4 (core)",
"@salesforce/sfdx-plugin-lwc-test 1.0.0 (core)",
"alias 2.1.0 (core)",
"apex 0.13.0 (core)",
"auth 2.2.2 (core)",
"community 2.0.0 (core)",
"config 1.4.12 (core)",
"custom-metadata 2.0.0 (core)",
"data 2.0.4 (core)",
"generator 2.0.2 (core)",
"info 2.0.1 (core)",
"limits 2.0.1 (core)",
"org 2.0.1 (core)",
"salesforce-alm 54.6.2 (core)",
"schema 2.1.1 (core)",
"sfdx-cli 7.158.1 (core)",
"sfdx-git-delta 5.2.0 (5.2.0)",
"sfpowerkit 4.2.9 (4.2.9)",
"signups 1.2.0 (core)",
"source 2.0.3 (core)",
"telemetry 2.0.0 (core)",
"templates 55.0.0 (core)",
"trust 2.0.1 (core)",
"user 2.1.0 (core)"
],
"osVersion": "Linux 5.4.72-microsoft-standard-WSL2"
}

[github-actions]

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[mshanemc]

you are correct. There's an open bug down in oclif (the cli framework we use) so I'm gonna close this one.