learning uboot test command

时间:2023-03-08 16:54:19

uboot commad test

  test - minimal test like /bin/sh

  so we can use test command to some judge

  for example,

    test –n $uenvcmd    test var uenvcmd length !eq  zero

   detail learning you  can reference url: https://www.cnblogs.com/tankblog/p/6160808.html

 

 Note: we can use test command to make dual system design  

    you can reference url : https://www.cnblogs.com/lianghong881018/p/9580236.html