How to delete logs in linux

Method to delete logs: 1. Use the "cat /dev/null > log file name" command; 2. Use the ": > log file name" command; 3. Use "> log file name" " command; 4. Use the "echo "" > log file name" command; 5. Use the "echo > log file name" command.

The operating environment of this tutorial: linux5.9.8 system, Dell G3 computer.

The database log (alter.log listener.log log.xml) generally cannot be deleted directly. It is best to just clear the content. Here are 5 ways to clear the log:

First type: cat /dev/null > filename

cat /dev/null > 日志文件名

Second type:: > ; filename

: >  日志文件名

##Third type:> filename

>  日志文件名

Fourth: echo "" > filename

echo "" > 日志文件名

The fifth way: echo > filename

echo > 日志文件名

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