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I need to change 's3_bucket': 'pass' to hello but it is not working

ex: echo "'s3_bucket': 'pass'" | sed 's/'s3_bucket':/hello/' outputs:
's3_bucket': 'pass'

Please help understand what am I doing wrong

Adu Thoma
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  • Is your data literally the output from echo, or are you working with a text file? Is that text file in JSON, YAML, or HCL format? Modifying a document with sed when that document format requires special encoding of data is not really encouraged. There are special tools for working with that sort of data. Also, are you actually querying the document with a password, or do you just want to modify all instances of the s3_bucket key? – Kusalananda Jan 31 '22 at 15:38

1 Answers1

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The quoting is wrong. The part 's/'s3_bucket':/hello/' is interpreted by the shell as 's/' followed by s3_bucket and ':/hello/', resulting in s/s3_bucket:/hello/ as an argument for sed.

Try

echo "'s3_bucket': 'pass'" | sed "s/'s3_bucket':/hello/"

or

echo "'s3_bucket': 'pass'" | sed 's/'\''s3_bucket'\'':/hello/'

Note that in the second version there are two adjacent single quotes in '\'', not a double quote.

There are more possible ways of quoting, see this answer to a similar question.

Bodo
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