04-29-2012
What is the problem with your counter?
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1. Shell Programming and Scripting
I would like to allow only one instance of a script to run at any moment.
I've tried the following solution to count the instances but the result is always the number of running instances plus one and I can't find the problem
ps -ef | grep $0 | sed '/^$/ d' | sed '/grep/ d' | wc -l
Please... (2 Replies)
Discussion started by: oti
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2. Shell Programming and Scripting
i need to execute 5 jobs at a time in background and need to get the exit status of all the jobs i wrote small script below , i'm not sure this is right way to do it.any ideas please help.
$cat run_job.ksh
#!/usr/bin/ksh
####################################
typeset -u SCHEMA_NAME=$1
... (1 Reply)
Discussion started by: GrepMe
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3. Shell Programming and Scripting
i just want to get the BackGround status and limit the number of jobs to run the at a time.
can i able get the back ground exit status ? that i code below.
can jobs -l limit the number of jobs to run ?
total is this script looks fine ?
cat run_job.ksh
#!/usr/bin/ksh... (0 Replies)
Discussion started by: GrepMe
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4. UNIX for Dummies Questions & Answers
Hi
Hi! I'm currently using AIX 5.2 and would like to know where can i find to see that there's a restriction on the number of login times a user can have. Example, I want give a 2 login per user but some one to give 3 login and some one have to give unlit login time (without logging off the... (2 Replies)
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Is there a way that I can limit number of commands that one user can run during period of time. For example Max 10 commands per senconds.:) (3 Replies)
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6. Shell Programming and Scripting
Hello
I have Linux Debian & tcsh shell. My mini script not run :(.
Startup script displays a message:
user@host:dir% ./test
if: Badly formed number.
script:
#!/bin/tcsh -f
#script check size files systems
set x = `df -h /usr | tail -n1 | awk '{ print( $5 ); }'`
set y = 60%
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when it runs and look at my acron.log file it generates an error as below
/tmp/prog.sh: line 4: (12 Replies)
Discussion started by: azherkn3
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8. Shell Programming and Scripting
Hello,
I am new to AWK and in UNIX in general. I am hoping you can help me out here.
Here is my data:
root@ubuntu:~# cat circuits.list
WORD1
AA
BB
CC
DD
Active
ISP1
ISP NAME1
XX-XXXXXX1
WORD1
AA
BB
CC (9 Replies)
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9. Shell Programming and Scripting
#!/usr/bin/ksh
c=0
while ]; do
echo /tmp/unex NOT found, iter : $c;
((c = $c + 1));
sleep 2;
done
so, the above counter doesn't work, already tried both -lt & -gt, and changed || to &&
so what am I missing?
Thanks in advance (5 Replies)
Discussion started by: unexistance
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10. Shell Programming and Scripting
hi guys. i have a question for you
i have a one file and inside this file there are 1000 lines and each line is a linux command
running this commands takes long time so i want to create one bash script and run this lines in a loop with max number of threads
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Discussion started by: avtaritet
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LEARN ABOUT NETBSD
i386_pmc_startstop
I386_PMC_INFO(2) BSD/i386 System Calls Manual I386_PMC_INFO(2)
NAME
i386_pmc_info, i386_pmc_startstop, i386_pmc_read -- interface to CPU performance counters
LIBRARY
i386 Architecture Library (libi386, -li386)
SYNOPSIS
#include <sys/types.h>
#include <machine/sysarch.h>
#include <machine/specialreg.h>
int
i386_pmc_info(struct i386_pmc_info_args *ia);
int
i386_pmc_startstop(struct i386_pmc_startstop_args *ssa);
int
i386_pmc_read(struct i386_pmc_read_args *ra);
DESCRIPTION
These functions provide an interface to the CPU performance counters on the 586-class and 686-class processors.
i386_pmc_info() will return information about the available CPU counters. The information is returned in ia having the following structure:
struct i386_pmc_info_args {
int type;
int flags;
};
The type member describes the class of performance counters available. Valid values are:
PMC_TYPE_NONE No PMC support
PMC_TYPE_I586 586-class CPUs
PMC_TYPE_I686 686-class Intel CPUs
PMC_TYPE_K7 686-class AMD CPUs
The flags member describes additional capabilities of the processor. Valid values are:
PMC_INFO_HASTSC CPU has time-stamp counter
i386_pmc_startstop() is used to start and stop the measurement of the CPU performance counters. The argument ssa has the following struc-
ture:
struct i386_pmc_startstop_args {
int counter;
uint64_t val;
uint8_t event;
uint8_t unit;
uint8_t compare;
uint8_t flags;
};
The counter specified by the member counter is started if the member flags has PMC_SETUP_KERNEL or PMC_SETUP_USER set, otherwise the counter
is stopped. The initial value of the counter is set to val. Additional values for the flags member are PMC_SETUP_EDGE and PMC_SETUP_INV.
The event member specifies some event written to the control register. The unit member specifies the measurement units. The compare member
is a mask for the counter.
i386_pmc_read() will return information about a specific CPU counter measured during the last measurement period determined by the calling of
i386_pmc_startstop(). The information is returned in ra having the following structure:
struct i386_pmc_read_args {
int counter;
uint64_t val;
uint64_t time;
};
The counter to read should be specified by the counter member. Counters are numbered from 0 to PMC_NCOUNTERS. The value of the counter is
returned in the val member. The time since epoch, measured in CPU clock cycles, is returned in the time member.
RETURN VALUES
Upon successful completion zero is returned, otherwise -1 is returned on failure.
BSD
November 10, 2001 BSD