[op-mode] T1590 xml-style rewrite of 'show system' operations

1 files changed, 33 insertions, 0 deletions

diff --git a/src/op_mode/show_ram.sh b/src/op_mode/show_ram.sh
new file mode 100755
index 000000000..b013e16f8
--- /dev/null
+++ b/src/op_mode/show_ram.sh
@@ -0,0 +1,33 @@
+#!/bin/bash
+#
+# Module: vyos-show-ram.sh
+# Displays memory usage information in minimalistic format
+#
+# Copyright (C) 2019 VyOS maintainers and contributors
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+MB_DIVISOR=1024
+
+TOTAL=$(cat /proc/meminfo | grep -E "^MemTotal:" | awk -F ' ' '{print $2}')
+FREE=$(cat /proc/meminfo | grep -E "^MemFree:" | awk -F ' ' '{print $2}')
+BUFFERS=$(cat /proc/meminfo | grep -E "^Buffers:" | awk -F ' ' '{print $2}')
+CACHED=$(cat /proc/meminfo | grep -E "^Cached:" | awk -F ' ' '{print $2}')
+
+DISPLAY_FREE=$(( ($FREE + $BUFFERS + $CACHED) / $MB_DIVISOR ))
+DISPLAY_TOTAL=$(( $TOTAL / $MB_DIVISOR ))
+DISPLAY_USED=$(( $DISPLAY_TOTAL - $DISPLAY_FREE ))
+
+echo "Total: $DISPLAY_TOTAL"
+echo "Free:  $DISPLAY_FREE"
+echo "Used:  $DISPLAY_USED"