How can I run some commands repeatedly?

[kanghao]

How can I run some commands repeatedly?

for example I want to print "ps -ef | grep Exus | wc -l"

the below won't work.

while true do "ps -ef | grep Exus | wc -l ;sleep 1" done;

Thanks.

 

[KenCunningham]

Put a ; after while true and lose the quotes.

 

[KenCunningham]

Sorry - put a ; after the sleep too

 

[marrow]

while true
do
ps -ef | grep Exus | wc -l
sleep 1
done


Please try it this way

 

[kanghao]

Thanks. finally it works.

while true; do ps -ef | grep Exus | wc -l; sleep 1; done;

 

[kanghao]

How can I add the time excuted?
like
2005/10/10 18:07:19 3
(time, number of processes)

 

[marrow]

while true; do ps -ef | grep Exus | wc -l; sleep 1;date;done;

 

[kanghao]

I mean concatenate the process number and date in one line.

like
2005/10/10 18:07:19 => 3
2005/10/10 18:07:29 => 2

 

[marrow]

while true; do ps -ef | grep Exus | echo `date` = `wc -l`; sleep 1;done;