codemod --extensions sh '#!/usr/bin/env bash -e' '#!/usr/bin/env bash\nset -e'

net/gce.sh

@@ -1,4 +1,5 @@
-#!/usr/bin/env bash -e
+#!/usr/bin/env bash
+set -e
 
 here=$(dirname "$0")
 # shellcheck source=net/common.sh
@@ -380,7 +381,8 @@ EOF
 
   declare startupScript="$netConfigDir"/instance-startup-script.sh
   cat > "$startupScript" <<EOF
-#!/usr/bin/env bash -ex
+#!/usr/bin/env bash
+set -ex
 # autogenerated at $(date)
 
 cat > /etc/motd <<EOM