CODEWITHSUNDEEP
regexsedgrepnon-greedy
Wings
Wings

Reputation: 1026

Regex works in grep, but not in sed

I created the following regex which I am able to successfully use to grab a substring, but not to substitute it with sed.

test@devs-ops01:~$ grep -Eo "server\shost-gso121.*?:[0-9]{4}\s;" upstream_clusters.conf
server host-gso121.domain.com:8080 ;

When I try to use the same regex in sed, it doesn't catch it:

test@devs-ops01:~$ sed 's/server\shost-gso121.*?:[0-9]{4}\s;//' upstream_clusters.conf
upstream service_cluster {


    server host-gso120.domain.com:8080 ;server host-gso121.domain.com:8080 ;

    keepalive 8;
}

And yet, if i just write the name of the server without all of the special functions, the sed command does catch it:

test@devs-ops01:~$ sed 's/host-gso121//' upstream_clusters.conf
upstream service_cluster {


    server host-gso120.domain.com:8080 ;server .domain.com:8080 ;

    keepalive 8;
}

Any suggestions greatly appreciated!

Upvotes: 1

Views: 448

Answers (1)

Wings
Wings

Reputation: 1026

@zeppelin solution solved this for me.

sed -E

Upvotes: 2

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