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SYNOPSIS

 select [--name|--attr|--user|--level]
 $0 
 $0 --name name1
 $0 --user user1
 $0 --name name1 --user user1
    
 insert
 $0 --add --name name1 --attr attr1 --user user1 --level 1
 
 delete [--name|--attr|--user|--level]
 $0 
 $0 --del --name name1
 $0 --del --user user1
 $0 --del --name name1 --user user1