清理listener.log

[root@ ~]# cd/u01/app/grid/diag/tnslsnr/node2/listener/trace

You have new mail in /var/spool/mail/root

[root@trace]# ls

listener.log

[root@s trace]# ls -lh

total 26G

-rw-r----- 1 grid oinstall 26G Sep 22 15:20 listener.log

[root@ trace]# ls -lh

total 26G

-rw-r----- 1 grid oinstall 26G Sep 22 15:27 listener.log

[root@ trace]# cat /dev/null > listener.log

[root@ trace]# ls -lh

total 32K

-rw-r----- 1 grid oinstall 31K Sep 22 15:27 listener.log