CODEWITHSUNDEEP
bashsed
SexyNerd
SexyNerd

Reputation: 1124

Sed cannot convert uppercase to lowercase

I want to change the "email address" variance in a jSON message to lowercase. I tried to use sed but failed, since the \L option does not work for me. Did I miss something?

a="{"id":null,"enabled":true,"password":"","email":"[email protected]","lastName":"Foo","firstName":"lol"}"
echo $a | sed -e 's/email:[[:graph:]].*,last/\L&/g'

The result shows:

{id:null,enabled:true,password:,{L}email:[email protected],lastName:Foo,firstName:lol}

The result I want:

{id:null,enabled:true,password:,email:[email protected],lastName:Foo,firstName:lol}

Upvotes: 4

Views: 131

Answers (2)

Jotne
Jotne

Reputation: 41460

Here is an awk

awk -F, '{for (i=1;i<=NF;i++) if ($i~/email/) $i=tolower($i)}1' <<< "$a"
{id:null enabled:true password: email:[email protected] lastName:Foo firstName:lol}

Upvotes: 1

John1024
John1024

Reputation: 113994

I am going to assume that you do not have GNU sed and therefore do not have access to \L. Instead, try perl:

echo "$a" | perl -pe 's/(email:[[:graph:]]*,last)/\L\1/'

Upvotes: 3

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