Use VI command to delete all contents in the log and monitor the log in real time _unix Linux

Source: Internet
Author: User
Many times we need to look at the log file for the application, but there are usually a lot of logs from our previous applications, and sometimes it's a bit laborious to look at the logs generated by the current application, and we might want to clear the previous log Make the current generated log look clear:

VI Test.log

: 0, $d
: Wq

Note:: 0, $d is to delete the meaning of line No. 0 to the last line;: Wq is the meaning of saving and exiting.
Then enter the following command, you can monitor the contents of Test.log in real time:

Tail-f Test.log

Note: The tail command is to view the following 10 lines of the Test.log file, and the-f argument represents changes as the Test.log file increases.

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