What is the use of strace command?

[abhilash]

Hello,



What is the use of strace command?



Thanks

[onlinebigboss]

strace command , no idea :o

[drwebsites]

strace command ! what is this. never heard about that.

[Bharti Mahour]

Sorry dear, I don't have any idea about this.

[rehal]

strace is a debugging utility for Linux and some other Unix-like systems to monitor the system calls used by a program and all the signals it receives, similar to "truss" utility in other Unix systems. This is made possible by a kernel feature known as ptrace.

[akashram]

strace runs the specified command until it exits. It intercepts and records the system calls which are called by a process and the signals which are received by a process.

[chrisgeitz]

The Linux strace command is a utility that can be used to trace down the interaction between a program and Linux kernel. The interaction here means the Linux system calls that the program uses and the Linux signals that the program receives.

[sigmaseo]

strace is a debugging utility for Linux and some other Unix-like systems to monitor the system calls used by a program and all the signals it receives, similar to "truss" utility in other Unix systems. This is made possible by a kernel feature known as ptrace.

[WellingtonSilva]

In the simplest case strace runs the specified command until it exits. It intercepts and records the system calls which are called by a process and the signals which are received by a process.

[aaronbrad]

One of the main usage of strace command is to monitor the status/progress of a particular process running.

[ramskl]

Hello,



What is the use of strace command?



Thanks

No idea about strace command.

[davidsmith21]

Strace is a powerful command line tool for debugging and trouble shooting programs in Unix-like operating systems such as Linux.

[simicartan]

10 Strace Commands for Troubleshooting and Debugging Linux Processes. strace is a powerful command line tool for debugging and trouble shooting programs in Unix-like operating systems such as Linux. It captures and records all system calls made by a process and the signals received by the process.

[vinu]

When you run a command or job on a system, the system performs different system calls, sends multiple signals and performs process state change.

This commands logs all the steps and processes being sent or received by the system during the lifetime of the job or command.

[Not Named]

strace is a powerful command line tool for debugging and trouble shooting programs in Unix-like operating systems such as Linux. It captures and records all system calls made by a process and the signals received by the process.

[bountysite]

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

[tuxandrew]

Hello,



What is the use of strace command?



Thanks


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.

[Wellbet]

I am not so sure about this but I think it is a command line tool for debugging specific fo Unix OS.

[kylojoe]

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.