[SOLVED] Please suggest how to write a bash script to the requirement provided here

kingston · 10-07-2015, 08:22 AM

Hi Gurus

I have two files as follows

Hosts file:

Code:

dbhost-1
dbhost-2
dbhost-3

dbs file:

Code:

ORATS1
ORATS2
ORATS3

These files are outputs generated from one of my bash script.

Using this file, i have to generate couple of commands as follows

Code:

stop_command -s ORATS1 -u ORATS2,ORATS3 -n dbhost-2,dbhost-3
start_command -s ORATS1 dbhost-2,dbhost-3 ORATS2,ORATS3

Note: Output files will vary as per the DB RAC nodes.
It would be ok, even if you could give an idea on how to start writing to accomplish the task. I feel this is bit complex to get even started.

Habitual · 10-07-2015, 08:26 AM

Show us your script so far please.

rtmistler · 10-07-2015, 10:09 AM

Quote:

Originally Posted by kingston

I feel this is bit complex to get even started.

Code:

#!/bin/sh

Links in my signature cover BASH scripting for Beginners, Advanced Bash Programming, and I have a Blog about Bash Scripting for Dummies.

I would think that you'd understand by this point the need to put in some effort and how to ask an appropriate question.

TB0ne · 10-07-2015, 12:13 PM

Quote:

Originally Posted by kingston

Hi Gurus
I have two files as follows
Hosts file:

Code:

dbhost-1
dbhost-2
dbhost-3

dbs file:

Code:

ORATS1
ORATS2
ORATS3

These files are outputs generated from one of my bash script. Using this file, i have to generate couple of commands as follows

Code:

stop_command -s ORATS1 -u ORATS2,ORATS3 -n dbhost-2,dbhost-3
start_command -s ORATS1 dbhost-2,dbhost-3 ORATS2,ORATS3

Note: Output files will vary as per the DB RAC nodes. It would be ok, even if you could give an idea on how to start writing to accomplish the task. I feel this is bit complex to get even started.

Really??? You've been registered here since 2008, and have been asking about scripting since 2012 at least. That means, for the past THREE YEARS you have been writing scripts. Why is this 'complex' to you, after all that time?
http://www.linuxquestions.org/questi...expect-941259/
http://www.linuxquestions.org/questi...594/page2.html
http://www.linuxquestions.org/questi...ue-4175555326/

Seems like you're asking for a handout.

grail · 10-07-2015, 12:36 PM

I think we need a new section before newbie's such, can't be arsed. That way we can move all the threads where a person doesn't even attempt to try. (sorry ... just getting a little tired of late
seeing this same scenario raise its head time and again)

TB0ne · 10-07-2015, 01:01 PM

Quote:

Originally Posted by grail

I think we need a new section before newbie's such, can't be arsed. That way we can move all the threads where a person doesn't even attempt to try. (sorry ... just getting a little tired of late seeing this same scenario raise its head time and again)

Believe me, you're not alone.

I've suggested before that all new threads get moderated before going onto the board. If five or so moderators with limited access took a forum, you'd be left with a manageable number per-moderator. Couple that with a cookie-cutter response, and posts like this would vanish. Just an email to the OP, saying your post didn't meet the criteria stated at <some link>, re-post it when it does.

rtmistler · 10-07-2015, 01:24 PM

I agree. I was realizing that this is in the Newbie forum, the OP is clearly not new to this and they repeatedly ask questions that are, as said, requests for handouts.

TB0ne · 10-07-2015, 02:54 PM

Quote:

Originally Posted by rtmistler

I agree. I was realizing that this is in the Newbie forum, the OP is clearly not new to this and they repeatedly ask questions that are, as said, requests for handouts.

I never mind a 'newbie' question, and it can be difficult to learn a new language. Simple things can often snakebite you, and syntax can be fussy with some. Posting a script and saying "I keep getting xxx when this runs, and I can't figure this out!" is the way to go. Posting "I need a script to do xxx" is another.

rtmistler · 10-07-2015, 03:54 PM

Well I meant that they ought to have put it in Programming.

kingston · 10-08-2015, 12:35 AM

I expected this. With due respect, closing this thread as "Solved"
I will find a way.

Thank you all for your time.

grail · 10-08-2015, 01:02 AM

kingston - whilst we may have all come down a bit hard on you (for me it has been growing over the last week or so for many and not just you), you should be aware by now that if you show what you have tried then you will get all manner of help from all who have replied here. Unfortunately, your current question reads like :- "I can't be bothered so please do my work for me"

This may not have been your intention, but with over 200 posts under your belt you have been around long enough to know that the members here will give you nothing for free without some effort on your end.

I would note that your signature includes the line, Redhat Certified Engineer, now I find it difficult to believe that you cannot provide any example effort on such an easy problem?

HMW · 10-08-2015, 02:15 AM

Quote:

Originally Posted by grail

if you show what you have tried then you will get all manner of help from all who have replied here

^This++

kingston, you KNOW that we help out. But you gotta start digging yourself first before we pick up our shovels.

Best regards,
HMW

TB0ne · 10-08-2015, 08:39 AM

Quote:

Originally Posted by kingston

I expected this. With due respect, closing this thread as "Solved" I will find a way. Thank you all for your time.

With all due respect, that's what you SHOULD have done from the start. If you had, all of us would have been more than happy to try to help you. But asking for handouts after working with scripts for YEARS, isn't going to get you that help.

Quote:

Originally Posted by grail

I would note that your signature includes the line, Redhat Certified Engineer, now I find it difficult to believe that you cannot provide any example effort on such an easy problem?

....which is EXACTLY why I put so little stock in 'certifications'. There are several on this site who ask things like how to add users, write scripts, and how to partition hard drives, just to name a few.

HMW · 10-08-2015, 08:50 AM

Quote:

Originally Posted by TB0ne

....which is EXACTLY why I put so little stock in 'certifications'. There are several on this site who ask things like how to add users, write scripts, and how to partition hard drives, just to name a few.

I want to hug you for writing that. There is WAY too much focus on getting a certification, instead of getting your hands dirty and actually DOING stuff and learning from it.