[NTLUG:Discuss] let me try that again - time

MadHat madhat at unspecific.com
Fri May 30 10:20:54 CDT 2003


On Fri, 2003-05-30 at 10:05, Darin W. Smith wrote:
> I think what you may be encountering is that bash itself has a builtin 
> 'time' reserved word.  It does what time(1) does, it times a command.  It 
> understands one option, -p, which directs it to produce POSIX-compliant 
> output.
> 
> My time(1) manpage shows that it has exactly the same format and options as 
> the bash builtin.
> 
> Try "time command" vs. "/usr/bin/time command"
> 
> They seem to work identically for me, as does "time -p command" and 
> "/usr/bin/time -p command"
> 
> What options, besides -p, are you trying to use?  I don't see any other 
> options specified when I do:
> man 1 time
> OR
> man bash (and search for time)
> 

D'OH!!!  I forgot about that.  That is what the issue is.
I knew it was shell specific, but forgot about the builtin time.


$ /usr/bin/time --version
GNU time 1.7

-f for format
-o for output file
-a for append to said output file
-v for verbose output (see below)

        Command being timed: "ls -la"
        User time (seconds): 0.00
        System time (seconds): 0.00
        Percent of CPU this job got: 1%
        Elapsed (wall clock) time (h:mm:ss or m:ss): 0:01.77
        Average shared text size (kbytes): 0
        Average unshared data size (kbytes): 0
        Average stack size (kbytes): 0
        Average total size (kbytes): 0
        Maximum resident set size (kbytes): 0
        Average resident set size (kbytes): 0
        Major (requiring I/O) page faults: 197
        Minor (reclaiming a frame) page faults: 44
        Voluntary context switches: 0
        Involuntary context switches: 0
        Swaps: 0
        File system inputs: 0
        File system outputs: 0
        Socket messages sent: 0
        Socket messages received: 0
        Signals delivered: 0
        Page size (bytes): 4096
        Exit status: 0


-- 
MadHat at Unspecific.com
`But I don't want to go among mad people,' Alice remarked.
`Oh, you can't help that,' said the Cat: `we're all mad here...'
   -- Lewis Carroll - _Alice's_Adventures_in_Wonderland_




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