Shell Scripting to be done for verifying the software version and also not to update

scottalanmiller

For example "I need to only run Firefox Version 31" doesn't tell me enough. What if more versions are installed? What if other versions exist but are not installed? How do you determine the running version?

Lakshmana

@scottalanmiller Ok.This work has to be carried by me within two days.I have run the script tommorrow

scottalanmiller

@Lakshmana said:

@scottalanmiller Ok.This work has to be carried by me within two days.I have run the script tommorrow

these are questions that you need your manager to answer before even knowing what the script is supposed to do.

Lakshmana

@scottalanmiller Consider this "The mozilla version 31 is installed in the ubuntu machine but unfortunately in one criteria the version updated to 38.So now the script has to run automatically in the system and the version 38 has to rolled back to version 31 only.This is the script to be done for this situation

scottalanmiller

@Lakshmana said:

@scottalanmiller Consider this "The mozilla version 31 is installed in the ubuntu machine but unfortunately in one criteria the version updated to 38.So now the script has to run automatically in the system and the version 38 has to rolled back to version 31 only.This is the script to be done for this situation

But what if there is 31 AND 38?

Lakshmana

@scottalanmiller How two versions can be present ??

scottalanmiller

@Lakshmana said:

@scottalanmiller How two versions can be present ??

How can they not? Since "present" just means that it has been copied there, having two versions is no different than asking how can two files exist on the same computer. Yet tens of thousands of files exist on computers. Each is just a file. This is why I am saying that your description isn't enough to know what to do. You aren't even installing anything, just copying files, so all you are doing is checking for a file to exist, right?

Lakshmana

@scottalanmiller said:

l you are doing is checking for a file to exist, right?

Ok When two version present means I need to specify the path of the innstalled firefox version.after that this confusion will be finished.

@Lakshmana said:

@scottalanmiller How two versions can be present ??

Pretty sure firefox on linux is really just "ran" not installed.. It might be the version in the default path but, you could have more versions.

Lakshmana

@thecreativeone91 Ok.How to identify that?

@Lakshmana said:

@thecreativeone91 Ok.How to identify that?

You can't. you'd have to search ever folder for a firefox and then check the version, but then it could still be renamed and break the verification.

scottalanmiller

@Lakshmana said:

@scottalanmiller said:

l you are doing is checking for a file to exist, right?

Ok When two version present means I need to specify the path of the innstalled firefox version.after that this confusion will be finished.

You are not installing anything, though, you are just copying files. You are bypassing the installation process creating a much more complicated situation. Since you are bypassing the installation system you can have numerous copies of Firefox, each a peer. One is not more installed than another.

scottalanmiller

@thecreativeone91 said:

@Lakshmana said:

@scottalanmiller How two versions can be present ??

Pretty sure firefox on linux is really just "ran" not installed.. It might be the version in the default path but, you could have more versions.

Exactly. It's just a file, not installed the way that he is doing it since the version available through the installer is not the one he can use.

scottalanmiller

@Lakshmana said:

@thecreativeone91 Ok.How to identify that?

You know that this is the case because you are downloading a copy of Firefox and not running an installer.

scottalanmiller

@thecreativeone91 said:

@Lakshmana said:

@thecreativeone91 Ok.How to identify that?

You can't. you'd have to search ever folder for a firefox and then check the version, but then it could still be renamed and break the verification.

Exactly again. Once you don't use a system installer the concept of "installed" because extremely murky.

Lakshmana

@scottalanmiller Ok.How to uninstall the firefox version version automatically.I have used this command but the comaprision does not done

#!/bin/bash
clear
echo "The script starts now"
firefox -v
echo

echo "Verification of Firefox version"
read Firefox version

if [ "firefox -v" == "Mozilla Firefox 31.0" ]; then
echo "The version is correct "
else
echo "Alert!The version is not correct"
fi

@Lakshmana said:

@scottalanmiller Ok.How to uninstall the firefox version version automatically

How did that come from his last comment?

Lakshmana

I have given the command through which I try to compare the version of the firefox.Whether the command is correct or any correction needs to be done.

scottalanmiller

@Lakshmana said:

@scottalanmiller Ok.How to uninstall the firefox version version automatically.I have used this command but the comaprision does not done

#!/bin/bash
clear
echo "The script starts now"
firefox -v

This will tell you what version of Firefox you have in your path, nothing more. It doesn't tell you how many versions there are, what versions people are using, etc.

scottalanmiller

@Lakshmana said:

@scottalanmiller Ok.How to uninstall the firefox version version automatically.

So we've confirmed that you are not installing Firefox at all. Have you read what we've been telling you?

You always seem to skip the information that we say and ask the same questions over and over again after we've explained that the question can't be asked. I understand that it is tempting to just skip comments that you don't understand, but you can't do that. Figuring out what the installed means is pretty important here. You can't just ignore all that we have been telling you.