add new md

SUMMARY.md

@@ -186,6 +186,7 @@
       * [脚本分析](dev-ops/shell/script/README.md)
           * [快速生成md图片链接](dev-ops/shell/script/pushimage.md)
           * [基于地理位置查询脚本](dev-ops/shell/script/geo_search.md)
+          * [分组统计](dev-ops/shell/script/statistic.md)
       * [文本处理](dev-ops/shell/text/README.md)
           * [shell](dev-ops/shell/text/shell.md)  
           * [打印](dev-ops/shell/text/echo.md)

dev-ops/shell/script/statistic.md

@@ -0,0 +1,77 @@
+## 分组统计脚本
+
+### 方法执行时间耗时统计
+
+> 模式：
+
+2019-08-13 10:26:54.446 [pool-15-thread-18] INFO com.fcbox.service.function.BoxUsedRateExecutor.doBus (BoxUsedRateExecutor.java:181) [TxId :  , SpanId : ] doBus:edcode=FC5750840,count=183,cost=313
+
+> 涉及语法
+
+* 关联数组(字典)
+* sed 模式提取
+* grep 过滤
+* 父子shell
+* 循环判断
+
+> 脚本
+
+```
+
+#!/bin/bash
+
+LOG_FILE=/app/applogs/edmssvr/svrs.log
+SYNC_FILE=/tmp/tmpSync.log
+
+#fork sub shell to grep data
+(grep "doBus:edcode" $LOG_FILE > $SYNC_FILE)
+
+declare -A cost_dic
+count=0
+max=0
+min=100000
+
+#遍历行，提取耗时并分组统计，保存到字典
+while read line
+do
+    line=${line}
+    cost=$(echo ${line} | sed "s/.*cost=\([0-9]*\).*/\1/g" | bc)
+    if test $[cost] -gt 2000; then
+        let cost_dic[">2000ms"]+=1
+    elif test $[cost] -gt 1000; then
+        let cost_dic["1000-2000ms"]+=1
+    elif test $[cost] -gt 500; then
+        let cost_dic["500-1000ms"]+=1
+    elif test $[cost] -gt 400; then
+        let cost_dic["400-500ms"]+=1
+    elif test $[cost] -gt 300; then
+        let cost_dic["300-400ms"]+=1
+    elif test $[cost] -gt 200; then
+        let cost_dic["200-300ms"]+=1
+    elif test $[cost] -gt 100; then
+        let cost_dic["100-200ms"]+=1
+    elif test $[cost] -gt 0; then
+        let cost_dic["<100ms"]+=1
+    fi
+
+    if test $[cost] -gt $[max]; then
+        let max=$cost
+    elif test $[cost] -lt $[min]; then
+        let min=$cost
+    fi
+
+    let ++count
+done < $SYNC_FILE
+
+#打印字典
+echo 总数：$count 最大耗时: $max ms 最小耗时: $min ms
+echo 分布 数量 占比
+for key in ${!cost_dic[*]}; do
+    percent=$(echo "scale=2;${cost_dic[$key]}*100/$count" | bc)
+    echo $key ${cost_dic[$key]} $percent%
+done
+
+#删除临时文件
+rm $SYNC_FILE
+
+```