From 6bb47198816e66c58b36752de40289ea7759d37f Mon Sep 17 00:00:00 2001
From: Lars Kruse <devel@sumpfralle.de>
Date: Mon, 12 Aug 2019 01:38:16 +0200
Subject: [PATCH] Plugin lxc: separate function for title beautification

This avoids a bashism.
---
 plugins/lxc/lxc-multigraph | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/plugins/lxc/lxc-multigraph b/plugins/lxc/lxc-multigraph
index 2c699538..f97f925f 100755
--- a/plugins/lxc/lxc-multigraph
+++ b/plugins/lxc/lxc-multigraph
@@ -171,6 +171,13 @@ lxc_count_processes () {
 }
 
 
+# change the first character of a string to upper case
+title_case() {
+   local text="$1"
+   printf "%s%s" "$(echo "$text" | cut -c 1 | tr "[:lower:]" "[:upper:]")" "$(echo "$text" | cut -c 2-)"
+}
+
+
 # --- BASIC DEFINES
 
 active_guests=$(active_guests "$exclude")
@@ -204,7 +211,7 @@ EOF
       for cpu_usage in user system
       do
          cat <<EOF
-$(clean_fieldname "cpu_${cpu_usage}__${guest_name}").label $guest_name: $(echo "${cpu_usage:0:1}" | tr "[:lower:]" "[:upper:]")${cpu_usage:1}
+$(clean_fieldname "cpu_${cpu_usage}__${guest_name}").label $guest_name: $(title_case "$cpu_usage")
 $(clean_fieldname "cpu_${cpu_usage}__${guest_name}").type DERIVE
 $(clean_fieldname "cpu_${cpu_usage}__${guest_name}").min 0
 EOF