SQL & PL/SQL

Hi
All,

I am using oracle 10g on AIX. I am connecting to the database using command line. Now i am writing query and I did mistake in typing now I want to modify that query without using the editing buffer.
for example, select * from emp1. and I want to execute with emp instead of emp1.
I know there is a command to modify the sql without using the sql buffer editor. there is something like c /string1 /string2 but i am not sure. can anybody tell me the command for the same.

Thanks,
Vishal