How to extract a value of a Map String

Question

I have this String value which is a Map of user to password

'{"userJohn":"1234","userLinda":"9876"}'

the string has a single quate from each side.

How can I extract the password of say, userLinda

Does this answer your question? How to parse json response in the shell script? — tripleee
– tripleee, Commented Jul 18, 2022 at 16:00
Are you sure the value contains single quotes? You can remove them with a simple parameter expansion — tripleee
– tripleee, Commented Jul 18, 2022 at 16:00

Hi computer · Accepted Answer · 2022-07-19 09:52:05Z

0


# fishell
 ~ echo '\'{"userJohn":"1234","userLinda":"9876"}\'' | sed 's/^\'//' | sed 's/\'$//' | jq '.userLinda'
"9876"


# bash zsh
~ echo "'"'{"userJohn":"1234","userLinda":"9876"}'"'" | sed "s/^'//" | sed "s/'$//" | jq '.userLinda'
"9876"

edited Jul 19, 2022 at 9:52

answered Jul 18, 2022 at 11:08

Hi computer

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5 Comments

tripleee Over a year ago

echo '\' emits a literal double quote; that's hardly what you wanted to demonstrate.

Hi computer Over a year ago

What do you mean,It is single quote on my computer

tripleee Over a year ago

Perhaps you transcribed it incorrectly. Demo: ideone.com/0mJy26

Hi computer Over a year ago

yeah, I get it, i use fishell, it is fine, I will change the answer

tripleee Over a year ago

Adding to the confusion, I meant a literal backslash. Sorry and thanks for the update. Perhaps the Fish solution should not be at the top of the answer, though - the question is clearly tagged sh

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