github.com/niedbalski/juju@v0.0.0-20190215020005-8ff100488e47/acceptancetests/repository/charms/peer-xplod/hooks/output-relation-changed (about)

     1  #!/bin/bash
     2  
     3  set -xe
     4  
     5  V=$(relation-get v)
     6  V=${V:-0}
     7  relation-set v=$(expr $V + 1)