Polecenie strace
Opcje wykonania strace w konsoli
Align the return values in column n. The default is 40.
Count system calls, errors, signals, and time and provide a summary report when the program has ended.
Debug mode. Print debugging information for strace on stderr.
Pass an expression to strace to limit the types of calls or signals that are traced or to change how they are displayed. If no keyword is given, trace is assumed. The values can be given as a comma-separated list. Preceding the list with an exclamation point (!) negates the list. The special values all and none are valid, as are the values listed with the following keywords.
abbrev=names Abbreviate output from large structures for system calls listed in names.
read=descriptors Print all data read from the given file descriptors.
signal=symbols Trace the listed signal symbols (for example, signal=SIGIO,SIGHUP).
trace=sets sets may be a list of system call names or one of the following:
file Calls that take a filename as an argument.
ipc Interprocess communication.
network Network-related.
process Process management.
signal Signal-related.
raw=names Print arguments for the given system calls in hexadecimal.
verbose=names Unabbreviate structures for the given system calls. Default is none.
write=descriptors Print all data written to the given file descriptors.
Trace forked processes.
Write system calls for forked processes to separate files named filename.pid when using the -o option.
Print help and exit.
Print the current instruction pointer with each system call.
Write output to filename instead of stderr. If filename starts with the pipe symbol |, treat the rest of the name as a command to which output should be piped.
Override strace's built-in timing estimates, and just subtract n microseconds from the timing of each system call to adjust for the time it takes to measure the call.
Attach to the given process ID and begin tracking. strace can track more than one process if more than one option -p is given. Type Ctrl-C to end the trace.
Quiet mode. Suppress attach and detach messages from strace.
Relative timestamp. Print time in microseconds between system calls.
Print only the first n characters of a string. Default value is 32.
Sort output of -c option by the given value. value may be calls, name, time, or nothing. Default is time.
Print time spent in each system call.
Print time of day on each line of output.
Print time of day with microseconds on each line of output.
Print timestamp on each line as the number of seconds and microseconds since the Epoch.
Run command as username. Needed when tracing setuid and setgid programs.
Print version and exit.
Verbose. Do not abbreviate structure information.
Print all non-ASCII strings in hexadecimal.
Print all strings in hexadecimal.
Przykłady strace działanie w Słownik polecenie S
- Przykład STRACE użycie :
- Jak użyć Display kernel slab cache information in real time. slabtop displays a listing of the top caches as sorted by a given sort criteria co znaczy.
- Przykład STRACE użycie :
- Jak użyć terminal emulation, making it possible to run multiple full-screen pseudo-terminals from one real terminal, and letting you manipulate and save your screen input and output, copy and paste between krzyżówka.
- Przykład STRACE użycie :
- Jak użyć specified and print any printable character strings found that are at least four characters long and followed by an unprintable character. Often used to find human-readable content within binary co to jest.
- Przykład STRACE użycie :
- Jak użyć with an automatic document feeder (ADF), which can return multiple documents. The images are written to output files specified by the --outputfile option. scanadf uses the SANE interface to access słownik.
- Przykład STRACE użycie :
- Jak użyć Server for the ssh program, providing a secure remote-login and remote-execution facility equivalent to rlogin and rsh . Normally started at boot, sshd listens for incoming connections, forking a new czym jest.
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