first commit

scripts/mon_mem

@@ -0,0 +1,38 @@
+#!/bin/bash
+
+export LANG=en_US.UTF-8
+LOG_PATH="/var/log/monitor"
+LOG_NAME="mem"
+INTERVAL=60
+
+function Init {
+    local self_count=$(pgrep -cx "$(basename $0)")
+    [ 0 -eq $? ] || exit 1
+    [ 1 -eq $self_count ] || exit 1
+    mkdir -p $LOG_PATH || exit 1
+}
+
+function Log {
+    local msg="$1"
+    local log_time="$(date +'%F %T')"
+    local log_file="$LOG_PATH/$LOG_NAME-${log_time% *}.log"
+    echo "$log_time $msg" >> $log_file
+    cd $LOG_PATH && ls ${LOG_NAME}-* 2>/dev/null \
+        | head -n -7 | xargs rm -f
+}
+
+function GetMEMInfo {
+    free -w | grep '^Mem' \
+        | awk '{printf "%.2f %.2f %.2f %.2f\n",$3*100/$2,
+            $4*100/$2,$6*100/$2,$7*100/$2}'
+}
+
+function Main {
+    sleep $INTERVAL
+    Log "$(GetMEMInfo)"
+}
+
+# start
+Init
+Main
+