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for(i=3D1;i<10;i++)
do
    echo "lion-0722"
done

Then, i used mkimage tool to produce a script.
Then, i load it to dram, and run it with autoscr cmd.
But failed, the log message is:
LION # fatload mmc 0:1 0 scriptcmd0722
reading scriptcmd0722
120 bytes read
LION # autoscr 0
## Executing script at 00000000
Unknown command 'for(i=3D1' - try 'help'
Unknown command 'i<10' - try 'help'
Unknown command 'i++)' - try 'help'
syntax error
syntax error
... ...

Best wishes,