Assume we have a variable 'a' set to 12345 :
set a 12345
Now how do i set a new variable 'b' which contains the value of 'a' and another string say 9876
workaround is something like
set a "12345"
set u "9876"
set b $a$u
but i dont want to specify $u instead i want the direct string to used..
Answer
You can do:
set b ${a}9876
or, assuming b is either set to the empty string or not defined:
append b $a 9876
The call to append is more efficient when $a is long (see append doc).