how can i remove comments in random positions in a file?(bash)

Shell Programming and Scripting
1

Suppose i have a file like this:

#bla bla
#bla bla bla bla bla

Bla
BLA
BLA BLA #bla bla
....
....

how can i remove all comments from every line,even if they are behind commands or strngs that are not comments?
any idea how i could do that using awk?

2 
sed 's/#//g' filename

will give
bla bla
bla bla bla bla bla

Bla
BLA
BLA BLA bla bla
....
....

cheers,
Devaraj Takhellambam

3

thnks a lot!i found another solution too but i will try this one as well;)