strace
$ strace [--pid pid] [--output output] [--exclude exclude] [--include include] [argument...]Trace all syscalls and their result.
-p pid, --pid pid: Trace the given PID-o output, --output output: Filename to write output to-e exclude, --exclude exclude: Comma-delimited syscalls to exclude-i include, --include include: Comma-delimited syscalls to includeargument: Arguments to exec