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For some special files the kernel embeds instance information
into the file name. For example 'pipe:[1234]' or 'socket:[1234]'
where the number inside the brackets is the inode number. The proc
pseudo file system has the process pid embedded in the name, for
example '/proc/1234/mem'. These numbers are ephemeral and do not
contribute meaningful information for our reports. Plus we may use
the path information to decide if an alert is identical to a
previous alert, we coalesce them if they are. The presence of an
instance specific number in the path confuses this comparison.
For these reasons we strip any instance information out of the
path,
Example input and output:
pipe:[1234] --> pipe
socket:[1234] --> socket
/proc/1234/fd --> /proc/<pid>/fd
./foo --> ./foo
/etc/sysconfig --> /etc/sysconfig
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