Section 8 · System administration

bcc-filegone.8

Package: bcc-tools

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filegone

NAME
SYNOPSIS
DESCRIPTION
REQUIREMENTS
OPTIONS
EXAMPLES
FIELDS
OVERHEAD
OS
STABILITY
AUTHOR
SEE ALSO

NAME

filegone − Trace why file gone (deleted or renamed). Uses Linux eBPF/bcc.

SYNOPSIS

filegone [−h] [−p PID]

DESCRIPTION

This traces why file gone/vanished, providing information on who deleted or renamed the file.

This works by tracing the kernel vfs_unlink() , vfs_rmdir() , vfs_rename functions.

Since this uses BPF, only the root user can use this tool.

REQUIREMENTS

CONFIG_BPF and bcc.

OPTIONS


	−h		Print usage message.
	−p PID		Trace this process ID only (filtered in-kernel).

EXAMPLES

Trace all file gone events

filegone

Trace file gone events caused by PID 181:

filegone −p 181

FIELDS


	TIME		Time of the event.
	PID		Process ID that renamed/deleted the file.
	COMM		Process name for the PID.
	ACTION		action on file: ’DELETE’ or ’RENAME’
	FILE		Filename.

OVERHEAD

This traces the kernel VFS file rename and delete functions and prints output for each event. As the rate of this is generally expected to be low (< 1000/s), the overhead is also expected to be negligible. This is from bcc.

https://github.com/iovisor/bcc

Also look in the bcc distribution for a companion _examples.txt file containing example usage, output, and commentary for this tool.

OS

Linux

STABILITY

Unstable - in development.

AUTHOR

Curu Wong