python實踐——批量統計mongodb數據庫的集合大小

#!/usr/bin/env python import os,sys list = [] for i in range( 3, 50): l = os.popen( "/bin/echo 'show collections'| /usr/local/mongodb/mongodb/bin/mongo 127.0.0.1:27103/數據庫名|sed -n '%sp'" %i) #獲取數據庫的集合列表 l = l. read() if l != "": list.append(l) else: print "the collections is %s" %i del list[i- 4] break for i in list: i = i.strip( "\n") os.popen( "/bin/echo 'db.%s.stats()'| /usr/local/mongodb/mongodb/bin/mongo 127.0.0.1:27103/數據庫名|sed -n '4p;6p;8p'>>mongodb_size_count.txt" %i ) #統計集合的大小並把結果寫入mongodb_size_count.txt文件中