How to stop the Prstat using shell script ?
because after i run the below script the thing seems to be always in loop and cannot get out till i ctrl + c, is there anything that i can add in the script to make it terminate ?
<code>
#!/bin/sh
prstat -Tc -u testing > testing.txt
</code>
please help a noob ....
this prints one page
prstat 1 1
you can adapt more options to your needs
ok thanks... and btw... if i have lots of command for e.g.
<code>
prstat 1 1 > test1.txt
df -k > test2.txt
cat messages | grep abc > test3.txt
</code>
is there anyway i can put them all into separate txt files but can i put all the output into one file ? Please advise and thank you ghostdog for your help 
use ">>" instead of ">"
thanks once again ghostdog...
is there anyway i can write something into a file using a script ?
for e.g. i want to have a line break for the different input
and i want to input different words into the file
#!/bin/sh
line = "---------------------"
processes >> test1.txt
$line >> test1.txt
prstat 1 1 >> test1.txt
$line >> test1.txt
i've tried the above and it doesn't work can someone please guide me thanks
and btw is there any good website that i can refer to for such codings of shell?
you declare variable in shell with no spaces in between "="
eg
line="--------------"
echo $line >> file
must i echo them in order for the line to be in the file ?
by the way is there any good website for me to reference all these codes ?
thanks ghost will read up first
in a prstat there are so many values if i want to specifically pick one value and compare it, is it possible ?
In the above case i did a
prstat -Tc -u hellousr
then i changed to
prstat -Tc -u hellousr | grep 1
because i wanted to grep the taskid = 1 line and i am only interested in the CPU Usage value, 0.5%. However, when i do a grep 1 all the things are shown.
i need to do a if statement using script for it like
if CPU Usage for TASKID=1 > 0.5% , then it is known to be unhealthy else it is healthy.
sample of the prstat file
PID USERNAME SIZE RSS STATE PRI NICE TIME CPU PROCESS/NLWP
12 hellousr 77M 52M sleep 59 0 0:00:01 0.0% session_handler/12
TASKID NPROC SIZE RSS MEMORY TIME CPU PROJECT
1 12 563M 376M 9.9% 0:00:06 0.5% system
prstat -T -k 1 -n 1 -u user 1 1 | awk 'NR==4{print $7}'
ghost thanks for your constant help, but it doesn't print out anything...
it works already
but can you please explain abit on whats the
awk 'NR==4{print $7}'
i only knows that awk is a process and it extract out the 7th char base on print $7 how about the rest ?
on my system:
bash-2.03$ prstat -T -k 1 -n 1 -u root 1 1
PID USERNAME SIZE RSS STATE PRI NICE TIME CPU PROCESS/NLWP
88 root 6944K 5592K sleep 59 0 0:00.01 0.0% picld/15
TASKID NPROC SIZE RSS MEMORY TIME CPU PROJECT
1 58 845M 260M 8.8% 0:13.57 0.0% system
TASKID appears on the 3 line, so what you want is at the 4th line, hence NR==4.
The CPU value is at field 7, hence $7.
Brilliant ! Thanks, You're the man !
date +%H%M --> this command will get the Hour and Minutes of the time
but how do i get year months and day ??? anyone have any idea ?
the first thing you should do is check the date man page.
%Y gives you the year....you should be able to find for months, and day.
oh yah why didn i think of that ! thanks sorry for the trouble people