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Shell Programming and Scripting

Read line by line from a variable.

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# 8  
Old 09-12-2007
Thanks a lot!!Smilie
I too got it!!! Smilie

Code:
#>A=`ptree 23404`
17307 test -a test1
  17308 test1 -a test
    17319 test1 -a port4
    17369 test -a port3
    17417 test -a port
  17309 test1 -2 port2
#>echo $A
17307 test -a test1
  17308 test1 -a test
    17319 test1 -a port4
    17369 test -a port3
    17417 test -a port
  17309 test1 -2 port2
echo "$A" | while read line
> do
> echo $line
> done
17307 test -a test1
17308 test1 -a test
17319 test1 -a port4
17369 test -a port3
17417 test -a port
17309 test1 -2 port2
#>

# 9  
Old 09-13-2007
Got one more problem.Smilie
I was trying to process on each line of the output from variable A.
I want to get the PID's listed in the ptree output.
But not able to do that because when I process on the output of each line except echo statement if I do anything else the second line is not processed.

For. e.g.
Code:
#>A=`ptree 23404`
17307 test -a test1
  17308 test1 -a test
    17319 test1 -a port4
    17369 test -a port3
    17417 test -a port
  17309 test1 -2 port2
#>echo $A|while read line
>do
>echo $line|awk '{print $1}'
>done
17307
#>

Any help???
# 10  
Old 09-13-2007
Try with:

Code:
echo "$A"|while ...

You don't need awk though:

Code:
$ ptree $$|while read p junk;do echo "Do whatever you want with pid: $p"; done
Do whatever you want with pid: 290
Do whatever you want with pid: 19890
Do whatever you want with pid: 19892
Do whatever you want with pid: 19917
Do whatever you want with pid: 19918
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