Cannot use the exec command in shell scripts

The Java™ JSch library uses "exec" channel to run bash scripts. Due to this limitation, custom alert and job shell scripts cannot include invocation of another shell type. Therefore, an exec command in a shell script exec ksh '<>' cannot be used to create a Korn shell and passed directly to the text box in the shell job.

Symptoms

The shell scripts hang and do not run.

Resolving the problem

To resolve this issue, do one of the following:

• Move the script to a ksh script as tmp.ksh and run it as ./path/to/tmp.ksh from the text box on IBM® Db2® Intelligence Center.
• Change the default shell on the system by using chsh or similar methods. Enter this script to the text box and then run it.