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  1. #16
    Junior Member
    Join Date
    Oct 2017
    As above already mentions what strace is, here is how you may use strace.

    You have a process running and you are not sure why the process seems to be stuck for a long time. To investigate what is going, you would run below:-
    strace -p <_process_pid> -f -t

    -f would trace child processed spawned
    -t would print timestamp
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  2. #17
    Registered User
    Join Date
    Nov 2019
    Quote Originally Posted by abhilash View Post

    What is the use of strace command?


    Strace command is used to captures and records all system calls made by a process and the signals received by the process. In case a program crashes or behaves in a way not expected, you can go through its systems calls to get a clue of what exactly happened during its execution. Strace is more advanced way of troubelshooting.

    Simply run a command with strace in shell, for tracing of all system calls made by the df command.

    root@localhost:~#strace df -h # This command will generate the system call made by the process during its execution.
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  3. #18
    Registered User
    Join Date
    Nov 2019
    I am not so sure about this but I think it is a command line tool for debugging specific fo Unix OS.

  4. #19
    Registered User
    Join Date
    Aug 2018
    Scottsdale, Arizona
    Strace is a better tool for the Linux system. It keeps capturing an underlying system calls and their activity. If a program in your system gets damaged or is not working properly, then you can go to the system call to find out the reason and you can see it there.

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