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Hi,

I was trying to run a program that calls 8 processors (with max. RAM of 2 GB per processor). I want to run this program on my cluster that runs SGE. The cluster has 2 nodes, and each node has...

Thanks!

Hi,

I am a common user on a linux cluster that has openJDK installed. For a particular software, the vendor asks for Oracle version of java installed.

How can I install the oracle version from...

Hi,

Is there a way that I can find the load usage stats on a cluster (Redhat 4.8)? I want to find out if my jobs are using too many resources. I am not a sys admin.

Also, apart from 'top',...

Hi,

I was trying to change the value of the 4th column (put '1' in the 4th column of each row). My awk command is:

awk -F, '{$3=1;}1' OFS= input.txt > ./test_out.txt

My input file is:
a 1 2...

Hi,

I am trying to uncompress files in a set of nested directories (recursively). I give the following command:

find . -name '*.gz' -execdir gunzip '{}' ';'

1. It works when there are a...

Its a centOS system, details are:

-----
3.10.0-123.13.2.el7.x86_64 #1 SMP Thu Dec 18 02:09:51 CST 2014 x86_64 x86_64 x86_64 GNU/Linux
-----

% cat /etc/*-release
NAME="Scientific Linux"...

Hi,

I am trying to run the following on our cluster:

/sw/bin/dsh -w node02 -e "/home/pc/thello.sh"

but I get an error:

dsh: no machine specified

I used to be able to run it a few...

Hi,

I have some output from 'ls' command and I want to loop over the output in a bash script. What would be a good way to go about it?

For example, if the output of the ls command gives me...

So, to get things straight:

NR==FNR{A[$1,$2]; next}

- this reads file 2 and creates an array for each row in file 2

!(($1,$2) in A)

- after file 2 has been read, file 1 is read and output...

Thanks Aia!

It would be great if you could elaborate a bit on the structure and syntax of the code!

Hi,

I am trying to exclude certain rows in File 1, based on File 2. i.e. in the example below, File 3 should be the output; i.e. the rows in File 2 are excluded from File 1. Any hints/suggestions...

Thanks, that worked!

Hi,

A basic sed question.

I have a set of files. In each file there is a number that I want replaced. For example, if I run sed I should get the following:

% cat test2.txt
#goofy//171.00...

Thanks for the detailed explanation, Corona. I've learnt a lot!

Ha, quite right.

I just use copy as an example. Instead of copy, each file will be subjected to some processing and some output from this will be written to disk.

Sorry, I should have...

Sorry, a noobie question....!

I want to use a linux cluster to copy a list of files. I want to split the processing over 3 nodes so that each node gets (more or less) an equal share.

My script...

Thanks for the detailed reply, Don. You are, of course right. What I didn't mention about the filenames that the number '124' (for example) is a unique 3 digit number. So there is no chance of a file...

Hi Don,

The 'Barcode' column of the worksheet contains the name of the files to be copied. These ids are unique. For example, one id could be 'A123'. The file itself may be called 'xyz_A123.jpg'....

Thanks! That is probably a cleaner way to do it.

Thanks! Got it.

Hi Don,

I wish!

Okay, here's what I've go so far:

#!/bin/bash

#
# 1. Read in input file and separate out filename
# 2. Search for it
# 3. Copy it in a directory
# 4. Create file with...

Hi,

Sorry if this is a newbie question. I guess you can use either awk or shell script for this sequence of operations, but knowing very little about either of them I'm not sure how I should try...

Hi,

I wanted to zip some files (very large files) on our cluster (centOS). I am told that I should use the head node for this as it would tie down the CPU. How can I do this using one of the other...

I tried

chmod g+w "/path/to/Folder/Y"

but it didn't work. Error given is "Operation not permitted"