Does DB2 CLI support parameters markers in SQL that needs to be executed from a bash script [AIX]

Does the db2 -x or db2 -f filename.sql options support use of parameter markers? I am calling a SQL statement from a bash script. I cannot find any optios so far and I think I have to use the string concatenation in bash and pass the SQL to db2 -x which does not look neat.

Does DB2 CLI support parameters markers in SQL that needs to be executed from a bash script [AIX]