What does this mean? Post: 302866177

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Top Forums Shell Programming and Scripting What does this mean? Post 302866177 by Corona688 on Monday 21st of October 2013 12:13:43 PM

10-21-2013

Registered User

Quote:

Originally Posted by manands07

Well it can be anything . .
I have written three scripts by now and after successful execution of each script, there's a message as shown before.
Only the field values are changing . .

Like,
5.85u 4.679s 0:16.78 105.2% 1+6k 7+8io 5pf+7w

I want to know the significance of each field . .

Thanks for reply Smilie

I'm guessing -- only guessing, mind you -- that something in your scripts is using the shell's time builtin. This can change a lot across different systems but I recognize some parts of it:

It's telling you how much time something spent running as User(5.85 seconds), as System (4.679 seconds), and a total of 16.78 seconds (so must have spent some seconds just sitting waiting for I/O).

Try time sleep 10 in your shell.

The rest I'm not sure of. I'm not even sure what the "something" was since you refuse to post your script. What's your system? uname -a if you don't know.

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LEARN ABOUT OSX

sleep

SLEEP(3)						   BSD Library Functions Manual 						  SLEEP(3)

NAME

     sleep -- suspend thread execution for an interval measured in seconds

LIBRARY

     Standard C Library (libc, -lc)

SYNOPSIS

     #include <unistd.h>

     unsigned int
     sleep(unsigned int seconds);

DESCRIPTION

     The sleep() function suspends execution of the calling thread until either seconds seconds have elapsed or a signal is delivered to the
     thread and its action is to invoke a signal-catching function or to terminate the thread or process.  System activity may lengthen the sleep
     by an indeterminate amount.

     This function is implemented using nanosleep(2) by pausing for seconds seconds or until a signal occurs.  Consequently, in this implementa-
     tion, sleeping has no effect on the state of process timers, and there is no special handling for SIGALRM.

RETURN VALUES

     If the sleep() function returns because the requested time has elapsed, the value returned will be zero.  If the sleep() function returns due
     to the delivery of a signal, the value returned will be the unslept amount (the requested time minus the time actually slept) in seconds.

SEE ALSO

     nanosleep(2), usleep(3)

STANDARDS

     The sleep() function conforms to ISO/IEC 9945-1:1990 (``POSIX.1'').

HISTORY

     A sleep() function appeared in Version 7 AT&T UNIX.

BSD
								 February 13, 1998							       BSD