Hello,
I wish to run parallel process forked from one script.
Currently I doing is submit them in background.
For example:
---------------------------------------------------------------
#!/usr/bin/ksh
process1 &
process2 &
process3 &
.....
.....
#here I check for completion of... (4 Replies)
Hi,
Is there any way to run parallel jobs using make command?
I am using non-GNU make utility on AIX 4.3.
I want to run 2 jobs symultaneously using make utility.
Thanks.
Suman (0 Replies)
All,
We need to run multiple jobs in parallel with the dependencies intact.
I was trying to use the same with &, but in vain. Is there is any other way to resolve this issue.
I need to run
Set1
A.sh
B.sh
C.sh
Set2
D.sh
E.sh
Set3
F.sh (10 Replies)
Hi All,
I am working on a project where I need to execute set of arguments (around 500) on a Simulator. If I execute this on one linux (RedHat 8.0) machine it will approximately takes 2~3 days. Since I am having more linux machines am thinking of executing these on different machines in... (7 Replies)
Hi All,
At present I am using a UNIX Script which is running a set of JOBS. These JOBS are to be repeated for 20 times, means the same set of JOBS are repeated by just passing different arguments (From 1 to 20).
Is there any way by which I can execute them parallel?
At present its all... (4 Replies)
how can i process jobs parallel with conditions below.
Script1.ksh
Script2.ksh
Script3.ksh
Script4.ksh
Script5.ksh
Script6.ksh
Script7.ksh
Script8.ksh
Script9.ksh
Script10.ksh
After successful completion of Script1.ksh I need to run Script7.ksh.
After successful... (4 Replies)
Hi everybody,
In a csh script, i need to run 4 time the same prog with different parameters. What i want is to run them in parallel. for this i use the command
toto1.sh & toto2.sh & toto3.sh & toto4.sh
For this I have no problem. In fact, I need to wait until all the programs are over to... (2 Replies)
Since there've been a few requests for a method to execute commands on multiple CPUs (logical or physical), with various levels of shell-, make-, or Perl-based solutions, ranging from well-done to well-meant, and mostly specific to a certain problem, I've started to write a C-based solution... (4 Replies)
Hi All,
We have a table that has to store around 80-100 million records. The table is partitioned by a column called Market Code. There are 30 partitions each corresponding to one MRKT_CD.
The source of this table is a join between 3-4 other tables. We are loading this table through SQLPLUS... (2 Replies)
I have few very huge files ~ 2 Billion rows of 130 column(CDR data) in a folder, I have written shell script need to read on each file in a folder and will create a new files based on some logic.
But problem is it's taking time to create a new file due to the size , So i dont want to corrupt... (6 Replies)
Discussion started by: rspwilliam
6 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)