--- a/deb/repo-add-gcp.bash	Sat Mar 18 18:27:39 2023 +0200
+++ b/deb/repo-add-gcp.bash	Sat Mar 18 19:19:24 2023 +0200
@@ -1,13 +1,15 @@
 #!/bin/bash
 
 set -e
+src=gcp
 
-curl -o /usr/share/keyrings/gcp.gpg https://packages.cloud.google.com/apt/doc/apt-key.gpg
+cmd="curl -o /usr/share/keyrings/$src.gpg https://packages.cloud.google.com/apt/doc/apt-key.gpg"
+eval $cmd
 
-cat <<EOF >/etc/apt/sources.list.d/gcp.list
+cat <<EOF >/etc/apt/sources.list.d/$cmd.list
 # https://cloud.google.com/compute/docs/troubleshooting/known-issues#keyexpired-2
 # For new GPG key use:
-#   curl -o /usr/share/keyrings/gcp.gpg https://packages.cloud.google.com/apt/doc/apt-key.gpg
+#   $cmd
 
-deb [signed-by=/usr/share/keyrings/gcp.gpg] http://packages.cloud.google.com/apt cloud-sdk main
+deb [signed-by=/usr/share/keyrings/$src.gpg] http://packages.cloud.google.com/apt cloud-sdk main
 EOF