How to clear the contents of a txt file in Linux?

To clear the content of a txt file, you can use the following command:

1. Redirect a null character to a file using the “>” symbol.

> filename.txt

1. Redirect the file content to the null device using “/dev/null”.

cat /dev/null > filename.txt

1. Output an empty string to a file using “echo -n”.

echo -n "" > filename.txt

All of the above commands will empty the contents of the file, with “filename.txt” being the name of the file to be cleared.