Questions about modifying bash_profile values, export, etc.
 

My end goal: be able to use jar command from any directory i choose.

I am trying to follow instructions for unzipping a war using the jar command,


I have been googling all day how to update the ~/.bash_profile using export $PATH...

Can someone please help walk me through the correct steps to do this? I am not sure if the path should point to the JRE, the JDK or both, but more importantly I just am new to modifying the .bash_profile. I have made a couple of my own aliases for jumping to commonly used directories, but that is about it so far!

From what I have found, it looks like this will be the path I use when updating the bash_profile - how can I confirm?
And finally this is how it is currently setup in my ~/.bash_profile:


Thanks,
s

Type the full path and see if it works, IE:
If it works, then that's the right path.

Change your PATH=$PATH:$HOME/bin line to be:

aaahhhahahahaa i love the name :) thanks suicidaleggroll!

SO.. it still does not work... do I need to reboot the server or re login for the updated path to work?

I did:

nano ~/.bash_profile

updated the line per your advice

exit & saved

confirmed it was changed

went back to the directory i want to unzip the jar into and tried:
jar -xvf /u01/app/oracle/product/fmw/Oracle_WC1/archives/applications/webcenter.ear

but got this error:
-bash: jar: command not found

You need to either log out and back in, or source the file in order for the changes to take effect:

:{:{:{

What's the result of "echo $PATH"?

How do I tell?


echo $SHELL i get: /bin/bash

Well your path has been modified correctly, if the program is there it should be running it. Make sure the jar command is located there by running:

what does ls -l /usr/lib/jvm/java-1.6.0-openjdk-1.6.0.0.x86_64/jre/bin yeild ?

would it be a file literally called "jar" in that directory?

Yes. It looks like from your "ls" that there is no jar in that directory, which is why it can't find it. I've never used any "jar" command before, but I have run into java .jar files before. Usually in those cases I run them with "java -jar file.jar". I don't know if this has anything to do with what you're trying though.

Well now I just feel stupid. I guess the trick now is finding that jar! Thanks guys.

I'm trying to locate it, using locate or find, but I don't want to return a list of .jar files... and there are a lot!

Nm I used this:

find / -name jar


Found it: /u01/app/oracle/product/fmw/Oracle_WT1/jdk/bin/jar

In that case, just swap out the "/usr/lib/jvm/java-1.6.0-openjdk-1.6.0.0.x86_64/jre/bin" in your PATH in ~/.bash_profile with the directory found above, source it, and then see if it works.

It worked :) You rock!