Applying sed in bash variable and assigning it to another

Question

I have:

MY_FOLDER=`jq '.results_folder' ./conf.json`

FOLDER_WITHOUT_QUOTES=$MY_FOLDER | sed 's/"//g'

python my_code.py > $FOLDER_WITHOUT_QUOTES/log.log

So, there is a json file with a folder name. But jsons demand strings to be inside ". And reading the json with bash returns me ", which I want to remove

Passing it to a variable and then applying sed isn't working. What's the correct syntax for doing it?

Thank you!

You can use `jq -r` for this. – Benjamin W. May 04 '21 at 23:20 — Benjamin W., May 04 '21 at 23:20

xhienne · Accepted Answer · 2021-05-05T09:05:03.840

2

Posix shell would need:

FOLDER_WITHOUT_QUOTES="$(printf '%s\n' "$MY_FOLDER" | sed 's/"//g')"

With Bash you can use the here-document syntax:

FOLDER_WITHOUT_QUOTES=$(sed 's/"//g' <<< "$MY_FOLDER")

... and you can even get rid off a call to sed with the special substitution:

FOLDER_WITHOUT_QUOTES=${MY_FOLDER//\"}

Note: prefer the $(command) syntax to the backquotes which are less readable and cannot be nested as easily.

edited May 05 '21 at 09:05

answered May 04 '21 at 23:09

xhienne

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@oguzismail Thanks. I meant Posix. Answer updated. – xhienne May 05 '21 at 09:05

Applying sed in bash variable and assigning it to another

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