BASH script reading variable from another .txt file

Question

I have output.txt file, where my script is storing some outputs, I just need to get the output of ID which is in the 1st line of the output.txt in myscript.sh file, can someone suggest a way to do that

{"id":"**dad04f6d-4e06-4420-b0bc-cb2dcfee2dcf**","name":"new","url":"https://dev.azure.com/vishalmishra2424/82c93136-470c-4be0-b6da-a8234f49a695/_apis/git/repositories/dad04f6d-4e06-4420-b0bc-cb2dcfee2dcf","project":{"id":"82c93136-470c-4be0-b6da-a8234f49a695","name":"vishalmishra","url":"https://dev.azure.com/vishalmishra2424/_apis/projects/82c93136-470c-4be0-b6da-a8234f49a695","state":"wellFormed","revision":12,"visibility":"public","lastUpdateTime":"2021-04-22T14:24:47.2Z"},"size":0,"remoteUrl":"https://[email protected]/vishalmishra2424/vishalmishra/_git/new","sshUrl":"[email protected]:v3/vishalmishra2424/vishalmishra/new","webUrl":"https://dev.azure.com/vishalmishra2424/vishalmishra/_git/new","isDisabled":false}

What have you searched for, and what did you find? What have you tried, and how did it fail? — Cyrus
– Cyrus, Commented May 11, 2021 at 11:42
I searched few docs and tried the below one, but its not giving me what i am expecting while read line; do [[ $line =~ id ]] && declare "$line" && break done < Repooutput.txt — Devops-Learner
– Devops-Learner, Commented May 11, 2021 at 11:56

Arkadiusz Drabczyk · Accepted Answer · 2021-05-11 12:18:36Z

2

The snippet you posted looks like JSON and a utility named file which can guess different types of file says that too:

$ file output.txt
output.txt: JSON data

You should use JSON-aware tools to extract value of id, for example jq:

$ jq -r '.id' output.txt
**dad04f6d-4e06-4420-b0bc-cb2dcfee2dcf**

or jshon:

$ jshon -e id < output.txt
"**dad04f6d-4e06-4420-b0bc-cb2dcfee2dcf**"

answered May 11, 2021 at 12:18

Arkadiusz Drabczyk

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4 Comments

Devops-Learner Over a year ago

Thank you so much really appreciate your help

Devops-Learner Over a year ago

When I running this directly in shell, then its working fine. But when I am including it in script getting access denied. Any idea what I am doing wrong here. $ jq -r '.id' Repooutput.txt dad04f6d-4e06-4420-b0bc-cb2dcfee2dcf

Devops-Learner Over a year ago

$ sh test.sh test.sh: line 3: /c/ProgramData/chocolatey/bin/jq: Permission denied

Arkadiusz Drabczyk Over a year ago

Hmm, I have no idea. It might be Windows issue but I don't know how to use Windows, sorry.

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