I have installed NS2-allain one-2.32 .now i am setting my path.but when ever i use ~/.bashrc command it say permission denied....what do do now..

What are the permissions and ownership of .bashrc? You can display them with;

ls -l /home/(username)/.bashrc

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Steve Stites

this is what i get ..now what to do.

[mclamna@localhost ~]$ ls -l /home/mclamna/.bashrc
-rwxr----- 1 mclamna mclamna 124 Jul 12 2006 /home/mclamna/.bashrc

That looks OK. I don't know why you were getting the permission denied message. Maybe I misunderstood your question. Are you trying to add a directory to your PATH by changing your PATH permanently in /.bashrc?

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Steve Stites

Actually i want to export my path varribale in .bashrc file ..so that i will not set every time i use ns...
so when i open this file permission denied come.

What command are you using to open /home/mclamna/.bashrc?

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Steve Stites

you need to source the file - It's not executable and can't be run directly otherwise. Er, well, it shouldn't be. But it is, so I'm not sure why you're getting that message either.

what to do now how i will access my bashrc file

I know you've done some of this, but let's try it all at once. Type these three commands and their output, like this:
Use whatever editor you want if you don't use vim and don't paste the output of the editor if it loads, even if it doesn't (clear the|use the alternate) screen, of course. But do post any error messages.

If it's owned by you and you have the 'rw' perms, you should be able to read/write it.

this is the result when i typed it




now what to write here ...

2ndly when i checked the properties of bashrc file it doesnot giving me any read and write priviliges what to do .... how to add my path varriable in it

That's supposed to be 'head -1'. Then the editor itself, if head shows you a line. In the meantime, you can just 'export PATH=$PATH:/path/you/want' from the command line and, as long as you don't exit that shell, you'll have that path.

Incidentally, few people would know what 'NS2-allain one-2.32' is (including myself) but I noticed elsewhere you were actually running on Cygwin. That kind of information can be important. Since you are, you can always try opening it in edit (in a dos box) or notepad. If you have a decent editor that won't screw up the line endings, you can even edit it in Windows. And make sure the program wants a Cygwin path vs. a Window path.

sorry for typo
now when i type this following message come
i am working on fedora core 6.by specifying the path in command line its working fine.but i want to save it in bashrc file.how can i change it.
i was experimenting it to install NS2 on windows using cygwin.
but the problem i wrote is of linux...

Best thing is to go into your home dir and edit the file using eg vim:
vim .bashrc
or whichever editor you prefer.
My current work system doesn't have it, but iirc, PATH is usually set in the .bash_profile file.
Can't check my home system from here.