bash for loop work in command line, but failed in script

Question

When a run a for statement in debian bash command line, it works fine. But when I run it in a sh script or run it with bash command, it's keeping report "error near unexpected token `do'" Where is the difference?

[leon@www] ~/tmp $ for i in {1..10}; do echo $i; done
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[leon@www] ~/tmp $ bash for i in {1..10}; do echo $i; done
-bash: syntax error near unexpected token `do'

BTW, all works fine in centos enviorment.

Answer 1

Use the -c option so that bash reads the commands from the string you pass in. Also, use single quotes around the command.

bash -c 'for i in {1..10}; do echo $i; done'