ON any client host 
     You will have to source the client's profile

     source ~<clientUserID>/sqllib/db2cshrc
     eg: source ~db2leduc/sqllib/db2cshrc

     Issue the following Command

      % db2level
     

     DB21085I  This instance or install (instance name, where applicable: "db2cli") 
     uses "64" bits and DB2 code release "SQL10012" with level identifier 
     "0203010E".
     Informational tokens are "DB2 v10.1.0.2", "s121127", "IP23394", and Fix Pack 
     "2".
     Product is installed at "/cse/local/pkg/db2/V10.1".

• *Using client db2c64 (64 bit but version 9) <code> DB21085I Instance “db2c64” uses “64” bits and DB2 code release “SQL09017” with level identifier “02080107”. Informational tokens are “DB2 v9.1.0.7”, “s090308”, “MI00273”, and Fix Pack “ 7”. Product is installed at “/cse/local/pkg/db2/V9.1”. </code> ====db2ls ==== This will only work on the server <code> To list the path where DB2 database products are installed on your system and list the DB2 database product level, enter: db2ls This lists the installation path , level, fixpak, special install number , installation date , installer UID db2ls -q -p -b baseInstallDirectory where q is querying a product or feature p specifies that the listing displays products b specifies the installation directory of the product db2ls is installed in /usr/local/bin as a symlink at installation time If the host server has to be rebuild with a new operating system This link will have to be recreated gold ~]$ db2ls Install Path Level Fix Pack Install Date —————————————————————– /local/dbms/V9 9.7.0.6 6 Wed Aug 29 17:17:30 2012 /local/dbms/V10 10.1.0.0 0 Fri Sep 14 09:21:48 2012 </code> ====db2val==== This will only work on the server host**

The db2val tool verifies the core function of a DB2 copy by validating 
installation files,instances, database creation, connections to that database,
and the state of partitioned database environments. This validation can be helpful
if you have manually deployed a DB2  copy on Linux and UNIX operating systems using
tar.gz files. The db2val command can quickly ensure that all the configuration has 
been correctly done and ensure that the DB2  copy is what you expect it to be. 
You can specify instances and databases or you can run  db2val against all of the instances. The db2val command can be found in the DB2-install-
path\bin and sqllib/bin directory


   eg:
    gold ~]$ db2val
           Installation file validation for the DB2 copy installed at
           /local/dbms/V10 was successful.

• db2icrt
• db2iupdt