Deleting an Open File in Linux

Posted on in For Geeks Only

Some applications such as Apache need to be restarted after deleting a log file.  One way to clear out the contents of a log file is to simply write the contents of /dev/null to the file by using the following command:

cat /dev/null > <somefile>

My guess is that this works because the file preserves the same inode so that the application can continue to write to the file.

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