java process not executing command
java process not executing command
- Subject: java process not executing command
- From: Wolfram Stebel <email@hidden>
- Date: Wed, 28 Sep 2005 17:19:19 +0200
hi all,
i have an app running, which listens on apache logs via "tail -f -n 0
path/filename".
works fine.
Now i want to execute "ls -lat /var/log/httpd/access_log*".
from the error stream i get "ls: /var/log/httpd/access_log*: No such file or
directory".
Wy does it execute the tail but not the ls?
should i send my xserve to school? :-)
when i execute the logged command from the commandline it works!
The tail process is still running and i receive it's output via the input
stream.
Is it possible to have two processes running using Runtime.getRuntime
().exec ( command ), also to have the corresponding error and input streams?
this is the code how i start the processes:
a)
p = Runtime.getRuntime ().exec ( "tail -f -n 0 /var/log/httpd/access_log" );
in = new BufferedReader( new InputStreamReader ( p.getInputStream () ) );
b)
checkProcess = Runtime.getRuntime ().exec ( "ls -lat
/var/log/httpd/access_log*" );
lsResult = new BufferedReader( new InputStreamReader
(checkProcess.getInputStream () ) );
BufferedReader error = new BufferedReader( new InputStreamReader (
checkProcess.getErrorStream () ) );
As far as possible, i'm sure, i have no coding errors...
In my user environment i have an alias for ls mapping to "ls -la" but this
will not be used for user "appserver" i think.
HELP! :-)
Thanks
Wolfram
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