No. read the man page - it returns CLOCKS_PER_SEC. This is implementation defined. There is no POSIX standard UNIX api that actually tracks clock ticks. You can use the following api calls to get what you want in different ways, but none actually returns real ticks of the CPU clock. If they do it is more coincidental than anything else. You have Windows in mind I think:
getrusage() - check out struct rusage
gettimeofday() - very fine grained time
times() - same granularity as clock()
but gives system + user time for both parent and children.
Also, check out the CLOCK_REALTIME macro in time.h and
Code:
getconf _POSIX_CLOCKRES_MIN
for your system - this tells you the finest time resolution available on your system.
Hello
I got a cycle in the script which open another scripts.
if
then
action
fi
Scripts action will be running 2 times at the same time.
Inside of action() is insert into the table.
But what I want is that only first script can do insert into table.
So how to do... (2 Replies)
Hello,
I have files in a dir.
I what to create a FOR cycle that will do this
FOR <condition> do
file=`ls <directory> | tail -1`
echo $file
mv -f $file <another dir>
done
What I want to now is what should I put in the <condition>. The condition I want is that the FOR will execute... (3 Replies)
hello everybody,
I need help on putting a wildcard match inside an if condition (I'm using korn shell):
if ]
then echo ' '
echo ''$MYSEL' is not a correct option'
echo ' '
else .....
i tried also #if -ne "``" and a lot of combinations of `"' but I didn't find the... (2 Replies)
Hello,
I have a question:
is there a way to have a "for" cycle done a certain number of times. For example in c++ I can do this:
for (i=o;i<10;i++)
and the cycle will be repeated 10 times.
in UNIX for example I do this:
for i in `cat /etc/host` do done
and the cycle will be repeated... (6 Replies)
i have a question how to modify below script to generate the expect result below :
test.sh
#!/bin/bash
for ((i=0; i < 25; i++))
do
echo $1$i
done
current result:
test.sh 20090101
200901010
200901011
200901012
200901013
200901014
200901015
200901016
200901017
200901018 (2 Replies)
Hi,
i would like to insert a if-then-else function in to cycle for
--------------
cat test
--------------
# cat test
ALFA
BETA
GAMMA
-----------------------
This is my script:
#!/bin/bash
for i in $(cat test); if ; then
echo "ok"
else (5 Replies)
Dear all,
I want to create a table using a shell script. Hope someone can help.
I created a variable that contains the path for different files.
For all the files I want to do calculations and print it to stdout (or file) as a table.
I tried this code:
paths=`cat $tabdelim_file | awk... (7 Replies)
Discussion started by: Higgo
7 Replies
LEARN ABOUT HPUX
setclock
setclock(3C)setclock(3C)NAME
setclock - set value of system-wide clock
SYNOPSIS DESCRIPTION
The function sets the current value of the specified system-wide clock,
supports a of defined in which represents the time-of-day clock for the system. For this clock, the values returned by represent the
amount of time since the Epoch.
The calling process must have appropriate privileges to set the clock.
RETURN VALUE
Upon successful completion, returns a value of zero; otherwise it returns -1 and sets to indicate the error.
ERRORS
fails if any of the following conditions are encountered:
[EINVAL] does not specify a known system-wide clock, or either is outside the range for a given clock type, or it specifies a
nanosecond value less than zero or greater than or equal to 1000 million.
[EIO] An error occurred while accessing the clock device.
[EPERM] The requesting process does not have the required appropriate privileges to set the specified clock.
FILES SEE ALSO clocks(2), getclock(3C), gettimer(3C), thread_safety(5).
STANDARDS CONFORMANCE setclock(3C)
11-30-2008
