shell tee 不将所有命令输出重定向到文件

Question

我正在运行一个命令，该命令在执行期间输出一些代码行，在完成时输出一些最后的代码行，但是将其通过管道传递给

tee

以将该输出复制到文件中，只写入最后几行。

命令是

sam build

，典型的输出如下，但只有最后一部分（结果回顾）被写入文件。

典型命令输出

sh-4.2# sam build | tee build.txt
Building codeuri: /var/task/lambda-functions/scaffold-site-codebase runtime: nodejs18.x metadata: {} architecture: x86_64 functions: ScaffoldSiteCodebaseFunction
Running NodejsNpmBuilder:NpmPack
Running NodejsNpmBuilder:CopyNpmrcAndLockfile
Running NodejsNpmBuilder:CopySource
Running NodejsNpmBuilder:NpmInstall
Running NodejsNpmBuilder:CleanUpNpmrc
Running NodejsNpmBuilder:LockfileCleanUp
Building codeuri: /var/task/lambda-functions/confirm-new-purchase runtime: nodejs18.x metadata: {} architecture: x86_64 functions: ConfirmNewPurchaseFunction
Running NodejsNpmBuilder:NpmPack
Running NodejsNpmBuilder:CopyNpmrcAndLockfile
Running NodejsNpmBuilder:CopySource
Running NodejsNpmBuilder:NpmInstall
Running NodejsNpmBuilder:CleanUpNpmrc
Running NodejsNpmBuilder:LockfileCleanUp
Building codeuri: /var/task/lambda-functions/register-new-customer runtime: nodejs18.x metadata: {} architecture: x86_64 functions: RegisterNewCustomerFunction
Running NodejsNpmBuilder:NpmPack
Running NodejsNpmBuilder:CopyNpmrcAndLockfile
Running NodejsNpmBuilder:CopySource
Running NodejsNpmBuilder:NpmInstall
Running NodejsNpmBuilder:CleanUpNpmrc
Running NodejsNpmBuilder:LockfileCleanUp
Building codeuri: /var/task/lambda-functions/send-new-purchase-emails runtime: nodejs18.x metadata: {} architecture: x86_64 functions: SendNewPurchaseEmailsFunction
Running NodejsNpmBuilder:NpmPack
Running NodejsNpmBuilder:CopyNpmrcAndLockfile
Running NodejsNpmBuilder:CopySource
Running NodejsNpmBuilder:NpmInstall
Running NodejsNpmBuilder:CleanUpNpmrc
Running NodejsNpmBuilder:LockfileCleanUp
Building codeuri: /var/task/lambda-functions/send-failed-subscription-renewal-email runtime: nodejs18.x metadata: {} architecture: x86_64 functions: SendFailedSubscriptionRenewalEmailFunction
Running NodejsNpmBuilder:NpmPack
Running NodejsNpmBuilder:CopyNpmrcAndLockfile
Running NodejsNpmBuilder:CopySource
Running NodejsNpmBuilder:NpmInstall
Running NodejsNpmBuilder:CleanUpNpmrc
Running NodejsNpmBuilder:LockfileCleanUp
Building codeuri: /var/task/lambda-functions/create-stripe-customer runtime: nodejs18.x metadata: {} architecture: x86_64 functions: CreateStripeCustomerFunction
Running NodejsNpmBuilder:NpmPack
Running NodejsNpmBuilder:CopyNpmrcAndLockfile
Running NodejsNpmBuilder:CopySource
Running NodejsNpmBuilder:NpmInstall
Running NodejsNpmBuilder:CleanUpNpmrc
Running NodejsNpmBuilder:LockfileCleanUp

Build Succeeded

Built Artifacts  : .aws-sam/build
Built Template   : .aws-sam/build/template.yaml

Commands you can use next
=========================
[*] Validate SAM template: sam validate
[*] Invoke Function: sam local invoke
[*] Test Function in the Cloud: sam sync --stack-name {{stack-name}} --watch
[*] Deploy: sam deploy --guided

文件内容

Build Succeeded

Built Artifacts  : .aws-sam/build
Built Template   : .aws-sam/build/template.yaml

Commands you can use next
=========================
[*] Validate SAM template: sam validate
[*] Invoke Function: sam local invoke
[*] Test Function in the Cloud: sam sync --stack-name {{stack-name}} --watch
[*] Deploy: sam deploy --guided

Answer 1

您可以将

stderr

和

stdout

从

sam build

传递到

tee

像这样：

sam build 2>&1 | tee build.txt

Answer 2

如果您希望将

stderr

通过管道传输到

tee

，那么您需要在管道之前将

stderr

重定向到

stdout

....

command foo 2>&1 | tee foo.txt

。

2>

代表指挥

stderr

到

&1

stdout