replacing file in /bin

[stoneringers]

I need to replace a file in /bin which is read only. How do I change it so that I can delete the old version of the file and replace it with a new one.
Many thanks.

[GastonJ]

rm -f file
as root of course

[Hairlocks]

Why do you need to replace a file in /bin and which one is it. You could quite easily break it by just trying to replace it, e.g. what library fils does the new one need, etc...

[Mjolinor]

There shouldn't be a need to replace it, just copy your new one in there with a different name. Unless you are calling it from something else in which case you should rename the original.

[GastonJ]

He may not be using /usr/local/bin and it could well be a script or binary of his own making or just breaking his system..

[stoneringers]

Why do you need to replace a file in /bin and which one is it. You could quite easily break it by just trying to replace it, e.g. what library fils does the new one need, etc...

I started out by wanting to put a new version of cccam onto my 500s.
The current version was in /bin which I wanted to replace with a newer version. I expected that executable would be in /var/bin but it was not. I got around the problem by letting the image auto up date the cam itself. It reminded me of the problem that you have replacing executables in read-only mounted file systems.
As it was about 20 years since I had worked on unix system at work, I could not remember the way around it.