Linux uses the default number of records in history not enough?

1, by default, the system can save 1000's commands.

　　#echo $HISTSIZE

　　 

2, then the 1000 is not enough, how to do it?

　　#vi / etc / profile

　　修改HISTSIZE=1000 >>>>>HISTSIZE=2000

3、#source  /etc/profile

　　The document takes effect immediately;

　　

4, the verification result.

　　#echo $HISTSIZE