How can I redirect all stdout and stderr messages from a command to /dev/null (or to a file if need be) except messages that start with the word 'foo'? Messages that start with 'foo' need to be displayed in real time (i.e., when they are sent to stdout/stderr by the command). Thanks. (5 Replies)
Hello all,
I am currently try to learn the linux operating system as well as some bash programming. I have come across some online course work which has been very helpful, I have been working through some assignments and since I have no teacher to ask I have come to you experts.
So the... (6 Replies)
i write a shell program and i execute that after i made a bin directiry in my home directory(i didnt give any permissions)
now i change to other directory.then i execute it bit it is saying " no such a file or directory"
can any one help me please (2 Replies)
Hello,
I am processing data. In the first column there is the date ("2011 02 03 12 45") separated by space and follow I have the measurements.I have several days in one file. What I would like to do is:
to read the data line by line and write the data of "today" in a new file and "yesterday" as... (13 Replies)
Hello,
I am new to shell scripting. I have a question I would greatly appreciate any suggestions on. I am writing a ksh script that will launch bin files. The files are owned root and the application runs under root. The application administrators do not get root access. The script is intended... (1 Reply)
1. Create a directory script (project_dir.sh)
· Write a script in your home directory to create a subdirectory called “PROJECT<99>” within your home directory on the Ubantu/Linux server. <99> is your project number (e.g. 01,02,03, ... 15).
· The script must test whether... (1 Reply)
My professor has given me a couple of functions that I am to use to accomplish the task of replacing spaces in file and/or directory names with hyphens.
(i.e. A B/C D/E F and you want to rename that to A B/C D/E-F would be an example of changing the file and leaving the directories)
These are... (1 Reply)
Hi,
can someone explain how this aliases work:
alias m 'if ( \!:$ =~ *gz) set status = 1 && most \!:$ || gzcat \!:1 | most '
I mean, I know what it does, but I don't know how
- what is \!:$ and \!:1
- how do it used the && and ||
- what it does with status variable?
thanks (3 Replies)
Hello,
I am new to Linux and studying to become a Unix System Admin. I am taking a course in which I was practicing creating a bash script to ping a particular IP address. The script can be found below:
#/bin/bash
echo "Enter the IP address"
read ip
if
then
ping -c 1 $ip
if ;... (3 Replies)
Discussion started by: shah9250
3 Replies
LEARN ABOUT DEBIAN
tau_get_event_vals
TAU_GET_EVENT_VALS(3) TAU Instrumentation API TAU_GET_EVENT_VALS(3)NAME
TAU_GET_EVENT_VALS - Gets user event data for given user events.
SYNOPSIS
C/C++:
TAU_GET_EVENT_VALS(const char **inUserEvents, int numUserEvents, int **numEvents, double **max, double **min, double **mean,
double **sumSqe);
DESCRIPTION
Retrieves user defined event data for the specified user defined events. The list of events are specified by the first parameter
(eventList) and the user specifies the number of events in the second parameter (numUserEvents). TAU returns the number of times the event
was invoked in the numUserEvents. The max, min, mean values are returned in the following parameters. TAU computes the sum of squares of
the given event and returns this value in the next argument (sumSqe).
EXAMPLE
C/C++ :
const char **eventList;
int numEvents;
TAU_GET_EVENT_NAMES(eventList, numEvents);
cout << "numEvents: " << numEvents << endl;
if (numEvents > 0) {
int *numSamples;
double *max;
double *min;
double *mean;
double *sumSqr;
TAU_GET_EVENT_VALS(eventList, numEvents, numSamples,
max, min, mean, sumSqr);
for (int i=0; i<numEvents; i++) {
cout << "-------------------
";
cout << "User Event: " << eventList[i] << endl;
cout << "Number of Samples: " << numSamples[i] << endl;
cout << "Maximum Value: " << max[i] << endl;
cout << "Minimum Value: " << min[i] << endl;
cout << "Mean Value: " << mean[i] << endl;
cout << "Sum Squared: " << sumSqr[i] << endl;
}
}
}
SEE ALSO TAU_REGISTER_EVENT(3), TAU_REGISTER_CONTEXT_EVENT(3), TAU_GET_EVENT_NAMES(3)
08/31/2005 TAU_GET_EVENT_VALS(3)