CODEWITHSUNDEEP
regexlinuxgrep
Przemek
Przemek

Reputation: 647

grep those matching lines which contain single quotes

I want to matches those line of words:

{'ID': 'X.id: 4243.4, Y.id 534534', 'text': 'text - text'}
{'ID': 'X.id: 4247.4, Y.id 534534', 'text': 'text - text'}
{'ID': 'X.id: 42233.4, Y.id 534534', 'text': 'text - text'}

and I use this regular expression to match them:

{'ID': 'X.id: [0-9]+.[0-9], Y.id [0-9]+', 'text': 'text - text'}

I tested it on https://regexr.com/ and it works.

However I tried to used this with grep using this command:

cat raport.log | grep "{'ID': 'X.id: [0-9]+.[0-9], Y.id [0-9]+', 'text': 'text - text'}"

Where do I do the mistake?

Upvotes: 0

Views: 95

Answers (1)

Wiktor Stribiżew
Wiktor Stribiżew

Reputation: 626758

You may either use the ERE POSIX pattern by adding the -E option or change the + quantified subpatterns to their equivalents with * (e.g. [0-9]+ => [0-9][0-9]*) (or escape + in GNU grep).

s="{'ID': 'X.id: 4243.4, Y.id 534534', 'text': 'text - text'}"
echo "$s" | grep -E "{'ID': 'X\.id: [0-9]+\.[0-9], Y\.id [0-9]+', 'text': 'text - text'}"
echo "$s" | grep "{'ID': 'X\.id: [0-9][0-9]*\.[0-9], Y\.id [0-9][0-9]*', 'text': 'text - text'}"

See an online demo

Note that you need to escape the dots to match literal . chars.

Upvotes: 1

Related Questions