Sponsored Content
Full Discussion: For loop in parallel
Top Forums Shell Programming and Scripting For loop in parallel Post 302713249 by chercheur857 on Wednesday 10th of October 2012 11:51:40 AM
Old 10-10-2012
Here is my problem:
Code:
for i in $(seq $nb_lignes) # a list of machines
do
 machine=`head $1 -n $i | tail -1`
ssh root@$machine -x "java ....."
done

i have three machines: A,B and C
"A " run the script
list of machines contain B and C
i'd like to execute java command in the two machines B and C , A display that B run the command only
And when i do ctrl+C it display that C run the command

Last edited by Corona688; 10-10-2012 at 01:26 PM..
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

How to do parallel processing??

Hi All, I am working on solaris 8 sparc machine with 2 cpu. I am trying to run my application which generates files. I run multiple instance of the application, but the results don't seem to show as if it were runing parallely. When i run the application once it takes 12 secs to generate a... (1 Reply)
Discussion started by: zing
1 Replies

2. Shell Programming and Scripting

Execute commands parallel in a for loop ?

Hi, please can someone point me in the right direction with a shell scripting problem. I want to execute a command in a for loop and the command should be started not one-by-one meaning the for loop is waiting for the exit code , it should be started in parallel. I have a plain text file... (3 Replies)
Discussion started by: networkfre@k
3 Replies

3. Shell Programming and Scripting

parallel processing

hi i am preparing a set of batches for a set of files sequentially There is a folder /xyz where all the files reside now all the files starting with 01 - will be appended for one below other to form a batch batch01 then all the files starting with 02 - will be appended for one below other to... (7 Replies)
Discussion started by: mad_man12
7 Replies

4. Shell Programming and Scripting

parallel while loop based on the file records

Hi, I need to execute parallel with while loop. Input File(source_file.csv) contains filenames the below source_file.csv file contains Customer1.txt Product1.txt Sales.txt Emp.txt Dept.txt Based on the number of rows that file I want to run the script ‘n' times. while... (2 Replies)
Discussion started by: onesuri
2 Replies

5. UNIX for Dummies Questions & Answers

Need to test 100 ssh connections in parallel using loop and sleep? How to do that ?

Hello All, I want to test how much parallel ssh connections can be done on a server. I am thinking of reading username and hostname from a file and then using a loop (may be for) to do ssh on different host. Could anyone suggest me how can i write the script for the above. Thank you in... (0 Replies)
Discussion started by: ABHIKORIA
0 Replies

6. Shell Programming and Scripting

Run the for loop in parallel

I have the below code which runs on multiple databases , but this runs one-after-one. I will need this to run in parallel so that i could save a lot of time. Please help!!! Thanks in advance for Db in `cat /var/opt/oracle/oratab |egrep -v "ASM" |grep -v \# |cut -d\: -f1` do { export... (5 Replies)
Discussion started by: jjoy
5 Replies

7. Shell Programming and Scripting

awk loop using array:wish to store array values from loop for use outside loop

Here's my code: awk -F '' 'NR==FNR { if (/time/ && $5>10) A=$2" "$3":"$4":"($5-01) else if (/time/ && $5<01) A=$2" "$3":"$4-01":"(59-$5) else if (/time/ && $5<=10) A=$2" "$3":"$4":0"($5-01) else if (/close/) { B=0 n1=n2; ... (2 Replies)
Discussion started by: klane
2 Replies

8. Shell Programming and Scripting

Run script in parallel in while loop

Hi I am running a loop which actually runs same script for different argument value passed to it. while read repID do echo "Starting for $repID"; date; perl process_report.pl $repID done<${FILE_TO_READ} However this runs in sequence. I want the loop to not to wait for perl to... (3 Replies)
Discussion started by: dashing201
3 Replies

9. UNIX for Advanced & Expert Users

Trying to use a convoluted for loop with VLC and Parallel or OpenMPI with no success. Help?

I have about 12,000,000 mod files I'm trying to turn into a test of "unlimited cloud storage" by running them all through VLC and blowing them into mp3 files. I can get this to work serially but when trying to use openMPI or Parallel, something in the syntax is tripping it up some. Here is an... (1 Reply)
Discussion started by: sparticus414
1 Replies

10. Shell Programming and Scripting

Parallel increment of nested for loop

Hi, I am using solaris 5.10 environment and need help on doing parallel increment of nested for loop. Samples #inside the code the values assigned to a variable by another awk command will be like a=/xyz/pg/as /xyz/pg/as2 /xyz/pg/as3 b=/xyz/sd/fd1 /xyz/sd/fd2 /xyz/sd/fd3 for q in... (1 Reply)
Discussion started by: ananan
1 Replies
rwho(1) 							   User Commands							   rwho(1)

NAME
rwho - who is logged in on local machines SYNOPSIS
rwho [-a] DESCRIPTION
The rwho command produces output similar to who(1), but for all machines on your network. If no report has been received from a machine for 5 minutes, rwho assumes the machine is down, and does not report users last known to be logged into that machine. If a user has not typed to the system for a minute or more, rwho reports this idle time. If a user has not typed to the system for an hour or more, the user is omitted from the output of rwho unless the -a flag is given. OPTIONS
-a Report all users whether or not they have typed to the system in the past hour. FILES
/var/spool/rwho/whod.* information about other machines ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | |Availability |SUNWrcmds | +-----------------------------+-----------------------------+ SEE ALSO
finger(1), ruptime(1), who(1), in.rwhod(1M), attributes(5) NOTES
rwho does not work through gateways. The directory /var/spool/rwho must exist on the host from which rwho is run. This service takes up progressively more network bandwith as the number of hosts on the local net increases. For large networks, the cost becomes prohibitive. The rwho service daemon, in.rwhod(1M), must be enabled for this command to return useful results. SunOS 5.10 6 Nov 2000 rwho(1)
All times are GMT -4. The time now is 10:20 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy