tail command is used to display the last n lines of a specified file. By default the
tail command displays the last 10 lines of a file. This can be changed by using the
-n argument and specifying a new value. If the specified file does not contain at least n lines then a the .bak version of the file will be prepended, if it exists.
Another powerful feature of the
tail command is its ability to monitor and display file changes in real-time. The specified file in monitored for changes once a second and only the changed portion of the file is displayed.
Below is an update project you can apply to your JNIOR to get the tail application.
|Tail Command||v1.0||Feb 20 2023||3.5 KB||e0ce27e20c337000d8fd403c76b7ce80|
tail [OPTION]... [FILE]...
|Short Options||Long Option||Option Value||Description|
|-n||–lines||NUMBER||The number of lines that should be displayed from the end of the file|
|-f||–follow||Monitor the file in real-time|
The default usage will show the last 10 lines of the specified file.
We can use the
--lines option to specify 20 lines.
--follow to follow the file in real-time. New entries will be displayed. This command will not return to the prompt until ANY key is pressed.
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