regex - Multiline pattern after pattern match using sed -

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i have config file consists of multiple sections , lots of them contain property same name, let host. need replace host property of 1 particular section only. here's file:

section1 {   ...   setting1 = "true"   ...   host = "localhost"   ... } section2 {   ...   host = "whatever"   ... }

i want replace host value of section2 else. note there may number of lines in between, marked ...

sed -i.bak '/^section2 {/,/^}/s/host .*/host = "newvalue"/' file

this search between section2 { , next }, changing host = occurences. gnu sed syntax, should use eg sed -i '' ... on osx.


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