tree b2842a2aeffcdd10fbe7300920b2252f545d9b57
parent 2453de99df576fb907fe06cac58c628e3590833f
author Stephen Warren <swarren@nvidia.com> 1391458866 -0700
committer Tom Rini <trini@ti.com> 1392821254 -0500

cmd_test: implement -e test for file existence

This is much like a regular shell's -e operator, except that it takes
multiple arguments to specify the device type and  device/partition ID
in addition to the usual filename:

if test -e mmc 0:1 /boot/boot.scr; then echo yes; else echo no; fi

Signed-off-by: Stephen Warren <swarren@nvidia.com>