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Saving a temporary output within a script


 
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# 8  
Old 06-05-2011
Basically, you want to enter a value (x), then kill the processes that have pid > than (x)?
Or did I miss something?
# 9  
Old 06-05-2011
i am going to explain it from the beginning

Quote:
Originally Posted by Portabello
i have a command (which is "my command") that shows memory usage besides the process name, for example(the command output):

500 kb process_1
600 kb process_2
700 kb process_3
800 kb process_4
700 kb process_5
100 kb process_6

i want to write a script which suppose to show the processes with the desired parameter

for example if the user want the processes with memory usage of 600kb and greater the user should pass 600 as a parameter(which is x) and this script suppose to show the following :

process_2
process_3
process_4
process_5
Note: my command is : ps -efo somthing | grep somthing | grep somthing
it is a very very long command which i can't remember right now XD

so the guys helped me with the x thing and it was working fine to me
that was the porpuse of the x

now i have ran the shutdown_script by using for loop on each proccess came out from the final command which is

process_2
process_3
process_4
process_5

(the ones >=600 kb)

Note: final command is : ps -efo somthing | grep somthing | grep somthing | awk -vx=$x '$1>=x{print $NF}'

by running the following
Code:
echo "Enter value: " 
read x 
 
for i in `my_command| awk -vx=$x '$1>=x{print $NF}'`;do
 
shutdown_script $i
 
done

so the processes was shutted down successfully but i had another problem

i want to do another loop that running another script which is

(start_script) on each process i did shutdown but the problem is the process does not exist by running "ps -efo" since it was killed

so i came up with temp file or variable or whatever so the temp will save the processes that i did shutdown by save them in a temp file/variable before shutting them down, and then reuse them again in the starting loop using (start_script)

Last edited by Portabello; 06-05-2011 at 07:22 PM..
# 10  
Old 06-05-2011
Try this then, just to be sure:
Code:
TEMPFILE='/tmp/tempfile'
[...]
my_command | awk -vx=$x '$1>=x{print $NF}' > "$TEMPFILE"

# 11  
Old 06-05-2011
Quote:
Originally Posted by tukuyomi
Try this then, just to be sure:
Code:
TEMPFILE='/tmp/tempfile'
[...]
my_command | awk -vx=$x '$1>=x{print $NF}' > "$TEMPFILE"

thanks alot tuku i'v already done this before but there is a problem of the output of the command. The processes does not show up line by line it is appeared as a single line, for example if i do the following

Code:
my_command | awk -vx=$x '$1>=x{print $NF}' > "$TEMPFILE"
 
echo "$TEMPFILE"

it will show the processes as
process_2 process_3 proccess_4 process_5

instead of showing them line by line
process_2
process_3
process_4
process_5
# 12  
Old 06-05-2011
what's the output of my_command alone?
Does my_command is something along echo $(...)
If so, remove the echo $( ) and keep what's inside ...

What about if you cat "$TEMPFILE" instead of echo?
And what is the system you're on?

Last edited by tukuyomi; 06-05-2011 at 07:50 PM..
# 13  
Old 06-05-2011
Quote:
Originally Posted by tukuyomi
what's the output of my_command alone?
Does my_command is something along echo $(...)
If so, remove the echo $( ) and keep what's inside ...
the output of my_command is

500 kb process_1
600 kb process_2
700 kb process_3
800 kb process_4
700 kb process_5
100 kb process_6

and the output of the final_command is

process_2
process_3
process_4
process_5

and the echo has nothing to do with what i am looking for, it just helps me to know what is the outout of the temp file/variable
# 14  
Old 06-05-2011
Quote:
Originally Posted by Portabello
and the echo has nothing to do with what i am looking for, it just helps me to know what is the outout of the temp file/variable
I know Smilie, just the correct way to view a file is to cat

If you echo "$TEMPFILE", it's a variable and that's the thing I don't understand. This command SHOULD return '/tmp/tempfile'or whatever you entered.

cat file should return the output of the command (the list of processes)
 

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