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opensnoop(1m) opensnoop(1m) NAME opensnoop - snoop file opens as they occur. Uses DTrace. SYNOPSIS opensnoop [-a|-A|-ceghsvxZ] [-f pathname] [-n name] [-p PID] DESCRIPTION opensnoop tracks file opens. As a process issues a file open, details such as UID, PID and pathname are printed out. The returned file descriptor is printed, a value of -1 indicates an er- ror. This can be useful for troubleshooting to determine if appliacions are attempting to open files that do not exist. Since this uses DTrace, only the root user or users with the dtrace_kernel privilege can run this command. OS Solaris STABILITY stable - needs the syscall provider. OPTIONS -a print all data -A dump all data, space delimited -c print current working directory of process -e print errno value -g print full command arguments -s print start time, us -v print start time, string -x only print failed opens -Z print zonename -f pathname file pathname to snoop -n name process name to snoop -p PID process ID to snoop EXAMPLES Default output, print file opens by process as they occur, # opensnoop Print human readable timestamps, # opensnoop -v See error codes, # opensnoop -e Snoop this file only, # opensnoop -f /etc/passwd FIELDS ZONE Zone name UID User ID PID Process ID PPID Parent Process ID FD File Descriptor (-1 is error) ERR errno value (see /usr/include/sys/errno.h) CWD current working directory of process PATH pathname for file open COMM command name for the process ARGS argument listing for the process TIME timestamp for the open event, us STRTIME timestamp for the open event, string DOCUMENTATION See the DTraceToolkit for further documentation under the Docs direc- tory. The DTraceToolkit docs may include full worked examples with ver- bose descriptions explaining the output. EXIT opensnoop will run forever until Ctrl-C is hit. BUGS occasionally the pathname for the file open cannot be read and the fol- lowing error will be seen, dtrace: error on enabled probe ID 6 (...): invalid address this is normal behaviour. AUTHOR Brendan Gregg [Sydney, Australia] SEE ALSO dtrace(1M), truss(1) USER COMMANDS $Date:: 2007-08-05 #$ opensnoop(1m)
NAME | SYNOPSIS | DESCRIPTION | OS | STABILITY | OPTIONS | EXAMPLES | FIELDS | DOCUMENTATION | EXIT | BUGS | AUTHOR | SEE ALSO
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