When using "grep -c" to count and you use it to count how many processes are running the "grep" is a process and will get counted... if you are grep'ing to count processes then it is probably best to do "grep -v grep | wc -l" to count.
I think danmero meant this:
Anyway, the oracle background processes will be running even if the instance is in nomount state (i.e. even if the database is not accessible).
Hi,
I am trying to write a script, which queries a db to get the names of processes, stores it in a file and then checks if that process is running on a remote server. However I am not getting it right, could anyone help me out.
#!/bin/sh
echo "select Address from Device where Cust =... (5 Replies)
Hi there, I am designing a software rollout script and need to check if a particular file exists on a remote system
something along the lines of
if ; then blah blah
The above doesnt work but you get the general idea....is there a way I can do this on a single line ??
any help would... (2 Replies)
Advance Thanks.
(1) I would like to know any unix/Linux command to check EOF char in a file.
(2) Or Any way I can check a file has been reached completely at machine B from machine A. Note that machine A ftp/scp the file to machine B at unknown time. (5 Replies)
how to login with ssh to remote system with out applying the remote root/user password
with rlogin we can ujse .rhosts file
but with ssh howits possible
plz guide (2 Replies)
snmpget -v 1 -c COMMUNITYSTR hostname OID
what OIDs would I use to get information on all the processes and disk space information that are on a particular host.
where can i find out information on all of this?
thanks (3 Replies)
I've seen this question posed a few times with shell scripting, but have not found anything with csh. I am trying to download multiple txt files from a source using wget. These are archived tornado warning files; however, the files only exist if there were tornado warnings issued that day. I'm... (3 Replies)
Hello all,
This is my requirement:
1. I have 6 VMs running Apache (for Oracle EBS) as Linux user oracle.
2. From a central server (VM), I need to login to all the 6 VMs as oracle user (I have already set up ssh equivalence, so it is password less authentication).
3. Find the number of... (4 Replies)
Hi,
Given addresses of 2 remote machines, using a shell script is it possible to
get the state of running processes in "src"
stop all the processes in "src"
exit out of "src"
ssh into "dest"
resume the state of executing processes captured in step 1 in "dest"
Assumption:
"src" is... (3 Replies)
Geeks,
Could you please help me out in my script and identify the missing piece. I need to check/get the exit status of a remote command executed on remote host through script and send out an email when process/processes is/are not running on any/all server(s).
Here's the complete... (5 Replies)
Hello Guys,
I need some help to find out if processes are running on remote server or not. I could do 'ssh' to do that but due to some security reasons, I need to avoid the ssh & get result from remote server.
Could you please suggest some that can be done without ssh or similar sort of... (8 Replies)
Discussion started by: UnknownGuy
8 Replies
LEARN ABOUT SUSE
unbuffer
UNBUFFER(1) General Commands Manual UNBUFFER(1)NAME
unbuffer - unbuffer output
SYNOPSIS
unbuffer program [ args ]
INTRODUCTION
unbuffer disables the output buffering that occurs when program output is redirected from non-interactive programs. For example, suppose
you are watching the output from a fifo by running it through od and then more.
od -c /tmp/fifo | more
You will not see anything until a full page of output has been produced.
You can disable this automatic buffering as follows:
unbuffer od -c /tmp/fifo | more
Normally, unbuffer does not read from stdin. This simplifies use of unbuffer in some situations. To use unbuffer in a pipeline, use the
-p flag. Example:
process1 | unbuffer -p process2 | process3
CAVEATS
unbuffer -p may appear to work incorrectly if a process feeding input to unbuffer exits. Consider:
process1 | unbuffer -p process2 | process3
If process1 exits, process2 may not yet have finished. It is impossible for unbuffer to know long to wait for process2 and process2 may
not ever finish, for example, if it is a filter. For expediency, unbuffer simply exits when it encounters an EOF from either its input or
process2.
In order to have a version of unbuffer that worked in all situations, an oracle would be necessary. If you want an application-specific
solution, workarounds or hand-coded Expect may be more suitable. For example, the following example shows how to allow grep to finish pro-
cessing when the cat before it finishes first. Using cat to feed grep would never require unbuffer in real life. It is merely a place-
holder for some imaginary process that may or may not finish. Similarly, the final cat at the end of the pipeline is also a placeholder
for another process.
$ cat /tmp/abcdef.log | grep abc | cat
abcdef
xxxabc defxxx
$ cat /tmp/abcdef.log | unbuffer grep abc | cat
$ (cat /tmp/abcdef.log ; sleep 1) | unbuffer grep abc | cat
abcdef
xxxabc defxxx
$
BUGS
The man page is longer than the program.
SEE ALSO
"Exploring Expect: A Tcl-Based Toolkit for Automating Interactive Programs" by Don Libes, O'Reilly and Associates, January 1995.
AUTHOR
Don Libes, National Institute of Standards and Technology
1 June 1994 UNBUFFER(1)