Shell Programming and Scripting

if I have a variable named z inside a java file, is there any way to globally
change the name of the variable and all its occurences as a variable?
(but not any other z that is not part of that variable name)

Can you post some sample data to work on ? Also, with what do you want "z" replaced ?

tyler_durden

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Assuming that all alpha characters, all digits, the underbar (_) and dot (.) can be considered a part of a file name, this might be what you need:

Code:

sed -E 's/([^a-zA-Z0-9_.])z([^a-zA-Z0-9_.])/\1foo\2/g' src-file >output

Replace foo with whatever you need z to be replaced with. You may need to change the -E to -r if you are not using the sed that is Berkeley based or a part of the AT&T AST tool set.

I included the dot character as I assume that things like object.z() was not to have the z replaced. This works on the sample you provided, at least as far as I was willing to eyeball, so it hasn't been completely verified.