CODEWITHSUNDEEP
bashamazon-web-servicescommand-line-interface
Owen Murray
Owen Murray

Reputation: 133

Bash Script / AWS Integration

I am trying to create a Bash Script that can delete all of my Amazon Transcribe jobs from a single command. I have created the following script:

#!/bin/bash

aws transcribe list-transcription-jobs --max-results 100 --query '[TranscriptionJobSummaries[*].TranscriptionJobName]' --output text
while read jobName; do
    aws delete-transcription-job --transcription-job-name "$jobName"
done

However, when this runs, it lists the transcription jobs, but does not delete them. In fact, it does nothing at all after deleting the jobs! Although, it continues to process the job even through it does nothing.

Any ideas on how to fix this or where I am going wrong?

Upvotes: 1

Views: 163

Answers (2)

tripleee
tripleee

Reputation: 189679

You need to pipe the standard output of the aws command into the while read loop's standard input. You'll also want to switch to read -r to disable some legacy behavior of the read command, though it probably doesn't matter here.

aws transcribe list-transcription-jobs --max-results 100 --query '[TranscriptionJobSummaries[*].TranscriptionJobName]' --output text |
while read -r jobName; do
    aws delete-transcription-job --transcription-job-name "$jobName"
done

The crucial fix is the | at the end of the first line. Maybe also read up on basic shell pipelines.

Your original command would simply list the resutls to standard output, then sit there and wait for the read command to receive its input from somewhere else (realistically, from your keyboard).

If aws delete-transcription-job can somehow accept a list of jobs, maybe you can do away with the while loop entirely. I'm unfortunately not familiar with this specific command.

Upvotes: 2

Akhil
Akhil

Reputation: 1040

Simply

IFS="
"
for jobName in `aws transcribe list-transcription-jobs --max-results 100 --query '[TranscriptionJobSummaries[*].TranscriptionJobName]' --output text`; do
    aws delete-transcription-job --transcription-job-name "$jobName"
done

Upvotes: 0

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