Craig White wrote: > Looking to change a yml file (yaml is a database type file) > > *** from > --- !ruby/object:Right > attributes: > name: Personnel Admin > action: index > id: "1" > controller: assessments > --- !ruby/object:Right > attributes: > name: Personnel Admin > action: find > id: "2" > controller: assessments > > *** to > --- !ruby/object:Right > attributes_1: > name: Personnel Admin > action: index > id: "1" > controller: assessments > --- !ruby/object:Right > attributes_2: > name: Personnel Admin > action: find > id: "2" > controller: assessments > > where I'm taking the 'id:' field from each record and inserting an > underscore and the id into the 'attributes' label directly above. > > Any takers? > > Thanks > > Craig > > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos > I use awk instead of sed... Reverse file order, perform changes using awk and reverse again tac test.yml | awk '{if ($1=="id:"){idtag=substr($2,2,1)}; \ if ($1=="attributes:") {print "attributes_"idtag":"} \ else {print $0}}' | tac -