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.TH opensnoop-nd 8 "2015-01-30" "USER COMMANDS" .SH NAME opensnoop-nd \- trace process open() with arguments. Uses Linux SystemTap (non-debuginfo). .SH SYNOPSIS .B opensnoop-nd.stp .SH DESCRIPTION This traces the open() syscall system-wide, to show which files are being opened, and by who. This is a basic version of opensnoop. .SH REQUIREMENTS SystemTap. .SH EXAMPLES .TP Trace all open() syscalls, showing process and file details: # .B opensnoop-nd.stp .SH FIELDS .TP UID User ID. .TP PID Process ID. .TP PPID Parent process ID. .TP COMM Process name. .TP FD Return value of the open() syscall, which is either the resulting file descriptor (positive) or error code (negative). .TP PATH File pathname provided to the open() syscall. .SH OVERHEAD This reads and processes open() events and prints a line of output for each. If your applications perform a high rate of open()s, the overhead of this tool may become noticeable. .SH SOURCE This is from the SystemTap lwtools collection. .IP https://github.com/brendangregg/systemtap-lwtools .PP Also look under the examples directory for a text file containing example usage, output, and commentary for this tool. .SH OS Linux .SH STABILITY Unstable - in development. .SH AUTHOR Brendan Gregg .SH SEE ALSO strace(1)