top后台执行显示：top: failed tty get 错误

tessykandy

通过其他程序或脚本在非交互式模式下调用top命令，经常会出现:
   top: failed tty get 错误
解决办法：加个-b 选项皆可
-b : Batch mode operation
   Starts  top  in  Batch mode, which could be useful for sending output from top to other programs or to a file.  In this mode, top will not accept input and runs until the iterations limit youve set with the -n command-line option or until killed.
例如执行：top -bn 1


本文来自ChinaUnix博客，如果查看原文请点：http://blog.chinaunix.net/u2/89795/showart_1860792.html