Adding Prefix to all my variables except two of them

[Melat Kassa]

I wanted to add the prefix, say "x" , to all of my variables except two, lets say "var1" and "var2". How can I do that?

[Richard Williams]

I suspect it would be easier to add x to all variable names and then rename the two you didn't want to rename. Something like

ren * x*
ren xvar1 var1
ren xvar2 var2

[Melat Kassa]

Yes that works. Thank you Richard.

[William Lisowski]

Here's the alternative to Richard's straightforward approach, useful when there are a substantial number to avoid renaming (although my example shows it with just 2).

sysuse auto, clear
local same make price
unab allvars : *
local change : list allvars - same
rename (`change') (x=)

[Clyde Schechter]

Here's another way:

quietly ds var1 var2, not
rename (`r(varlist)') x=