Dump only the Stored Procedures in MySQL
This should do it for you:

mysqldump -h... -u... -p... -n -d -t --routines --triggers --all-databases &gt; MySQLStoredProc.sql

  -n, --no-create-db     Suppress the CREATE DATABASE ... IF EXISTS statement 
                         that normally is output for each dumped database if
                         --all-databases or --databases is given.
  -d, --no-data          No row information.
  --triggers             Dump triggers for each dumped table.
                         (Defaults to on; use --skip-triggers to disable.)
  -R, --routines         Dump stored routines (functions and procedures).
  -t, --no-create-info   Do not write CREATE TABLE statements that create each 
                         dumped table.


CAVEAT

It would be much better not to separate the stored procedures from the database so that specific stored procedures will be created in the database it was meant for. The same goes for triggers. This would be preferrable:

mysqldump -h... -u... -p... -d --routines --triggers --all-databases &gt; MySQLStoredProc.sql