Solaris

Great!
I'll try that as soon as I get a chance.

Any idea on why the command I used: "vmstat 1 2 | cut b-77-78 | grep -v id"
was causing a hang up?

After I entered the command via a script, and before the cut and grep, it held up at a hash prompt {#} and then I had to enter "exit" and hit return.

Then it executed the cut and grep.

Very odd as the comment worked perfectly when entered manually on the command line

I think you want to get rid of the unwanted lines BEFORE you cut.

And I think it's going to be more reliable to get the data (id or whatever) with cut -f to get the field you want.

Code:

$ vmstat 1 2
procs -----------memory---------- ---swap-- -----io---- -system-- ----cpu----
 r  b   swpd   free   buff  cache   si   so    bi    bo   in   cs us sy id wa
 0  0   3252  24724 416548 271716    0    0    80    18   26   50  0  0 99  1
 0  0   3252  24716 416548 271716    0    0     0     0   46   75  0  0 100  0

Code:

$ vmstat 1 2 | tail -2 | sed "s/  */ /g" | cut -d " " -f 16
99
100

Actually, Where we are getting the "99" and the "100", I need the "100" only

In the end, I am working on a Solaris system where "top" is not native. And it's been...stuttering for lack of a better word.

So I'm trying to get at the idle value another way, and I only need the last value.

Marc

There is absolutely no reason for this command to hang.
The cause would be a bug in your script or an issue with your environment.
It would help if you post your whole script content.

---------- Post updated at 07:59 ---------- Previous update was at 07:55 ----------

Beware that this is the Solaris forum while your vmstat output is from Linux or similar. They are slightly different.
Also, you probably mean tail -1, not tail -2.

well, here is the entire script as it's a test of the command functionality:

Code:

/usr/bin/ksh
vmstat 1 2 > /usr/home/mgrma/testFile
# vmstat 1 2 | nawk 'NR==4{print $NF}'
# vmstat 1 2 | awk '{print $22}' | awk '/[0-9]/'
# vmstat 1 2 | cut -b77-78 | grep -v id >> /usr/home/mgrma/testFile
# sed '2' /usr/home/mgrma/testFile

Each of the commented lines is a different method I have tried, including recommendations from here. With each try, I can run the command from the command line with no issue.

But when I put it into the script and run it, I get a "#" prompt and have to type "exit"

Once I do, there is the expected delay for vmstat to do it's thing and I get the correct data. As you can see, I even tried piping it to a file to process in later commands.

---------- Post updated at 07:59 ---------- Previous update was at 07:55 ----------

Beware that this is the Solaris forum while your vmstat output is from Linux or similar. They are slightly different.
Also, you probably mean tail -1, not tail -2.[/QUOTE]

as for linux, here is a uname output of the environment:

bash-3.2# uname -a
SunOS UsrBox 5.10 Generic_147440-27 sun4u sparc SUNW,Sun-Fire-V240
bash-3.2#

I am sudo to the bash user.

Marc

---------- Post updated at 11:19 AM ---------- Previous update was at 11:04 AM ----------

Never mind...

I'm a moron!

I was using "#!/usr/bin/ksh"

not "#!/bin/ksh"

Sorry for the confusion!

This wasn't directed to you but to hanson44.
Actually, #!/usr/bin/ksh would have been fine just like #!/bin/ksh, the real issue is you were lacking the shebang (#!).