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freemem-awk.sh

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+#!/bin/bash
+#
+# SCRIPT: freemem-awk
+# AUTHOR: Vidushi Bansal
+# DATE:   31/08/2020
+# REV:    1.1.A (Valid are A, B, D, T and P)
+#          (For Alpha, Beta, Dev, Test and Production)
+#
+#
+# PLATFORM: UBUNTU
+#
+# PURPOSE: Using awk command to check the memory status.
+# REV LIST:
+#    DATE        : Date of revision
+#    BY          : AUTHOR OF MODIFICATION
+#    MODIFICATION: Describe the chages made. What do they enhance.
+#
+# set -n   # Uncomment to check script syntax, without execution.
+#          # NOTE: Do forget comment it back as it won't allow the
+#          # the script to execute.
+#
+# set +x   # Uncomment this for debugging this shell script.
+#
+#
+################################################################
+#          Define Files and Variables here                     #
+fileName="/proc/meminfo"
+totalMemory=$(awk '/MemTotal/{print}' $fileName)
+freeMemory=$(awk '/MemFree/{print}' $fileName)
+availableMemory=$(awk '/MemAvailable/{print}' $fileName)
+buffers=$(awk '/Buffers/{print}' $fileName)
+cached=$(awk '/^Cached/{print}' $fileName)
+
+################################################################
+################################################################
+#          Define Functions here                               #
+
+display(){
+echo "Total memory available in the system: $totalMemory"
+echo "Free memory available in the system: $freeMemory"
+echo "Memory available in the system: $availableMemory"
+echo "Buffer available in the system: $buffers"
+echo "Cache memory available in the system: $cached"
+}
+
+################################################################
+################################################################
+#          Beginning of Main                                   #
+display
+################################################################
+# End of script
+
+