It is running now. I used my installed copy of ubuntu to use the time command. However I get 3 different lines of output:
I do believe my assignment instructions say to sum the first two numbers but my output is different than the example in the first post. I should sum the user and sys values. So what is the number in the "real" field for? Should I ignore it for this assignment?
Last edited by Scott; 07-18-2013 at 09:07 PM..
Reason: Code tags
I wondered if someone could point out the differences between the time commmand and usr/bin/time and the accuracy one might have over another.
Also, is there a website or two a person could maybe link for me to describe the differences?
Thank you for your time. (2 Replies)
Our Aix Unix has one issue.
If I type xedit &
after 30 minutes, xedit auto shut down.
If I type xedit
xedit will run forward.
I feel this & doesn't perform as it should be.
When I use &, system consider this process as idle.
How to fix this issue?
Does this mean unix env... (12 Replies)
I have noticed a few posts asking questions about c shell scripting these past few days. This a good read for those that currently or are thinking about writing a csh script:
Csh Programming Considered Harmful (9 Replies)
How can I run a here document on just one line? I ask, because I need to issue it from C++ as a system() or similar command and for security reasons I don't want to write out a shell script file from the program and run it.
For example, how could I write:
passwd test <<EOF
n3wp3ss... (3 Replies)
Hi friends,
I hope everyone is doing well and fine. I have always been hearing that C/C++ are relatively low-level as compared to Java/C# etc. Could you please tell me some low-level qualities of C/C++? And I think disk deframenters are written in C/C++, please correct me if I am wrong. And please... (5 Replies)
Ive a problem that I'm reaching out for help.
Ive written (With bits and pieces) of script that is not running as expected or is having an issue causing processes to spiral out of control.
The script does this:
Unloads a UV database server
Tars up a few folders
Transfers the file to... (11 Replies)
I am trying to issue the time command on a program so I can see execution times but it is returning all zeroes. Like this:
time pdriver arg1 arg2
0.000u 0.000s 0:00.00 0.0% 0+0k 0+0io 0pf+0w
"0+0k 0+0io 0pf+0w" --> The "0+0io" may change sometimes to a different number.
How can I run the... (2 Replies)
Greetings all,
On a RedHat System - I am issuing a command from script.sh that will add a file extension to a listing of files in a directory. It works, but I need to script from having an extension added as well.
Here is what I have tried to no luck:
for file in `ls * | awk ' /\./{print... (6 Replies)
Hi,
Using ksh, I have set up aliases (which work fine) in my user's .profile like this:
alias ll = 'ls -lrt'
alias cls = 'clear'
How do I call these same aliases so that they will work after issuing this: ? su - user
I do not want to add aliases to the su shell's .profile or .kshrc. (7 Replies)
Discussion started by: ocbit
7 Replies
LEARN ABOUT ULTRIX
time
time(1) General Commands Manual time(1)Name
time - time a command
Syntax
time command
/bin/time command
Description
The command lets the specified command execute and then outputs the amount of elapsed real time, the time spent in the operating system,
and the time spent in execution of the command. Times are reported in seconds and are written to standard error.
If you are using any shell except the C shell, you can give the command as shown on the first line of the Syntax section. If you are using
the C shell, you must use the command's full pathname as shown on the second line of the Syntax section. If you do not use the full path-
name, will execute its own built-in command that supplies additional information and uses a different output format.
The command can be used to cause a command to be timed no matter how much CPU time it takes. For example:
% /bin/time cp /etc/rc /usr/bill/rc
0.1 real 0.0 user 0.0 sys
% /bin/time nroff sample1 > sample1.nroff
3.6 real 2.4 user 1.2 sys
This example indicates that the command used negligible amounts of user and system time and had an elapsed time of 1/10 second (0.1). The
command used 2.4 seconds of user time and 1.2 seconds of system time, and required 3.6 seconds of elapsed time.
Restrictions
Times are measured to an accuracy of 1/10 second. Thus, the sum of the user and system times can be larger than the elapsed time.
See Alsocsh(1)time(1)