LinuxQuestions.org - time command

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twantrd

12-08-2004 12:13 PM

time command

When running the command 'time' it gives:

real 0m0.161s
user 0m0.070s
sys 0m0.070s

What actually is user time and system time? I don't understand the difference. Can someone explain? Thanks!

-twantrd

sigsegv

12-08-2004 12:25 PM

Code:

TIME(1)                



NAME

    time - time command execution



SYNOPSIS

    time [-al] [-h | -p] [-o file] utility [argument ...]



DESCRIPTION

    The time utility executes and times the specified utility.  After the

    utility finishes, time writes to the standard error stream, (in seconds):

    the total time elapsed, the time used to execute the utility process and

    the time consumed by system overhead.

Courtesy of `man 1 time`

twantrd

12-08-2004 01:50 PM

Ahh thanks. My 'man time' didn't show that kind of description. Thank you!

-twantrd

sigsegv

12-08-2004 03:54 PM

Indeed. I should have mentioned that the description I posted was from a BSD machine. The reason I posted it was, like you, when I read the Linux man page for time I saw that it sucked :p

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