Hi,
I'm wrote a small program on HPUX that uses wcsftime, but this function seems to be not working - I get 0 as a result, the output buffer returns empty, and errno is 0 :
cat .servers | while read LINE; do
ssh jason@$LINE $1
done
exit 1
./command.ksh "ls -l ~jason"
Why does this ONLY iterate on the first server in the list? It's not doing the command on all the servers in the list, what am I missing?
Thanks!
JP (2 Replies)
Hello
I' m confused a bit.
I want to replace string "&" with "&" using this command.
sed 's/&/&/g'
and it doesn't work. Nothing happens.
On the other side this works:
sed 's/&/@/g'
or sed 's/&/^/g' !!!
Can somebody help please?
Thanks (3 Replies)
Howdie everyone...
I have a shell script RemoveFiles.sh
Inside this file, it only has two commands as below:
rm -f ../../reportToday/temp/*
rm -f ../../report/*
My problem is that when i execute this script, nothing happened. Files remained unremoved. I don't see any error message as it... (2 Replies)
As per the man page, pstat_getdisk() call returns the number of instances, which could be 0 upon successful completion, otherwise a value of -1 is returned.
Please have a look at this sample program ->
#include <stdio.h>
#include <sys/pstat.h>
int main()
{
int j = 0, ret;
struct... (2 Replies)
hi
I wrote the following makefile, I have just one problem, when i type make clean I get the message make 'clean' is up to date and any obj file is removed from my folder, what's wrong?
Thank you
CC = cc
all: es.o elaboration.o
$(CC) -o es es.o elaboration.o
elaboration.o:... (0 Replies)
If there exists a field in stdin, print it, otherwise, print hello.....
These print nothing:
cat /dev/null | awk '{if ( length > 0 ) print $1; else print "hello"}'
cat /dev/null | awk '{if ( $1 ) print $1; else print "hello"}'But the scripts work if I run them directly in a terminal:
... (8 Replies)
greetings,
the following code isn't working as i expect it to. the first dbl brackets do but the second set gets ignored. ie: if i'm on t70c6n229 it echoes "Something" and i expect it not to. what am i missing?
if " ]] || " ]]; then
echo "Something"
fi
thanx! (9 Replies)
I edited sudoers like this:vi /etc/sudoers
subex ALL =(root) NOPASSWD: /usr/ccs/bin/pstack
But the respective user still is prompted for password, and even when the right password is used, the command is still not launched.$sudo usr/ccs/bin/pstack 26557
We trust you have received the usual... (5 Replies)
Hi,
I am using korn shell.
until ]
do
echo "\$# = " $#
echo "$1"
shift
done
To the above script, I passed 2 parameters and the program control doesn't enter inside "until" loop. If I change it to until ] then it does work.
Why numeric comparison is not working with -ne and works... (3 Replies)
Discussion started by: ab_2010
3 Replies
LEARN ABOUT NETBSD
timeval
TIMEVAL(3) BSD Library Functions Manual TIMEVAL(3)NAME
timeval, timespec, itimerval, itimerspec, bintime -- time structures
SYNOPSIS
#include <sys/time.h>
void
TIMEVAL_TO_TIMESPEC(struct timeval *tv, struct timespec *ts);
void
TIMESPEC_TO_TIMEVAL(struct timeval *tv, struct timespec *ts);
DESCRIPTION
The <sys/time.h> header, included by <time.h>, defines various structures related to time and timers.
1. The following structure is used by gettimeofday(2), among others:
struct timeval {
time_t tv_sec;
suseconds_t tv_usec;
};
The tv_sec member represents the elapsed time, in whole seconds. The tv_usec member captures rest of the elapsed time, represented as
the number of microseconds.
2. The following structure is used by nanosleep(2), among others:
struct timespec {
time_t tv_sec;
long tv_nsec;
};
The tv_sec member is again the elapsed time in whole seconds. The tv_nsec member represents the rest of the elapsed time in nanosec-
onds.
A microsecond is equal to one millionth of a second, 1000 nanoseconds, or 1/1000 milliseconds. To ease the conversions, the macros
TIMEVAL_TO_TIMESPEC() and TIMESPEC_TO_TIMEVAL() can be used to convert between struct timeval and struct timespec.
3. The following structure is used by setitimer(2), among others:
struct itimerval {
struct timeval it_interval;
struct timeval it_value;
};
4. The following structure is used by timer_settime(2), among others:
struct itimerspec {
struct timespec it_interval;
struct timespec it_value;
};
Both struct itimerval and struct itimerspec are used to specify when a timer expires. Generally, it_interval specifies the period
between successive timer expirations. A value zero implies that the alarm will fire only once. If it_value is non-zero, it indicates
the time left to the next timer expiration. A value zero implies that the timer is disabled.
5. The following structure is used by bintime(9), among others:
struct bintime {
time_t sec;
uint64_t frac;
};
The sec member specifies the time in seconds and frac represents a 64-bit fraction of seconds. The struct bintime is meant to be used
in the kernel only. It is further described in timecounter(9).
EXAMPLES
It can be stressed that the traditional UNIX timeval and timespec structures represent elapsed time, measured by the system clock (see
hz(9)). The following sketch implements a function suitable for use in a context where the timespec structure is required for a conditional
timeout:
static void
example(struct timespec *spec, time_t minutes)
{
struct timeval elapsed;
(void)gettimeofday(&elapsed, NULL);
_DIAGASSERT(spec != NULL);
TIMEVAL_TO_TIMESPEC(&elapsed, spec);
/* Add the offset for timeout in minutes. */
spec->tv_sec = spec->tv_sec + minutes * 60;
}
A better alternative would use the more precise clock_gettime(2).
SEE ALSO timeradd(3), tm(3), bintime_add(9)BSD April 12, 2011 BSD