How to use $?-ne 0 in shell

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#! / bin/bash

Hive-f / opt/schedule/schedule-deploy/gfboss/gfjys/hive/1gfjys_order_snatched_inc.sql

If [$?-ne 0]

Then

Echo "1gfjys_order_snatched_inc.sql $last_date fail,please run again"

Exit 1

Fi

$? The echo value of the last command. Then compare it to zero and decide what to do.

This is the shell programming statement of unix. If the end code after the last command is not 0, execute the following command

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