Shulou(Shulou.com)06/02 Report--

Generally speaking, the log (alter.log listener.log log.xml) of the database cannot be deleted directly. It is best to just empty the content. Here are five ways to empty the log:

The first three better ways:

Method 1:

Cat / dev/null > filename

Example: cd / oracle/app/11.2.0/grid/log/diag/tnslsnr/dbserver1/listener_scan1/trace

Cat / dev/null > listener_scan1.log

Method 2:

: > filename

Method 3:

> filename

The above three ways can empty the file, and the file size is 0

In the following two ways, the text has a "\ 0" and the file size is 1 after emptying.

The last two methods with a file size of 1:

Method 4:

Echo "" > filename

Method 5:

Echo > filename

Example echo > listener.log

Summary:

Using > listener.log is best to remember

Use cat / dev/null > listener_scan1.log to feel the most formal, purely personal feeling

In fact, the specific use of which way can achieve results, it depends on the personal habits of small partners! ~ ~

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