Dear Experts,

I have a script defined in Cron which runs every 1 minute.

* * * * * /export/home/myscript.sh >/dev/null 2>&1

#!/usr/bin/bash
while :
do
    sleep 60 & pid=$!
    /export/home/myscript.sh
    wait $pid
done

There is another solution to this problem, but you have to add some code to your `myscript.sh'. Put some kind of lock while your program is runing, e.g. if your program is a shell script, you can add the following lines:

...
lock=/export/home/.myscript.lock
trap "rmdir ${lock}; exit 2" 1 2 3 15
# Now lock. If lock fails, then propably the program is runing.
mkdir ${lock} || exit 0
...
Here comes the script code
...
# Now unlock, so another instance of this program can run in the future.
rmdir ${lock}

Can you try this way

#!/usr/bin/bash
while :
do
/export/home/myscript.sh
pid=$!
wait $pid
done

is it just like..

#!/usr/bin/bash
lock=/export/home/.myscript.sh.lock
trap "rmdir ${lock}; exit 2" 1 2 3 15

mkdir ${lock} || exit 0
...
Here comes my script code
...
rmdir ${lock}

moreover,

let say myscript.sh is running and having the below process id-

solaris:/home/user1> ps -ef|grep myscript.sh
solaris 25907 10427 0 14:36:50 ? 0:00 /export/home/myscript.sh

i put the myscript.sh in cron as 1 minute interval. So, every 1 minute interval solaris again run the myscript.sh.

DO you think solaris May try to assing the next myscript.sh with procss id 25907( which indicating overlapping)?
procss id 25907 still running.....