ps command differs in ksh and bash

Hello,

Can someone explain me why in bash the following command returns s
value while not in ksh.

In bash

[webadmin@pomme webadmin]$ ps -ef | grep jakarta-tomcat-5.0.28_rec |
grep -v grep

tomcat 17501 1 0 12:42 pts/2 00:00:34
/usr/local/java/bin/java -server -Xms128m -Xmx512m
-Djava.endorsed.dirs=/usr/local/jakarta-tomcat-5.0.28_rec/common/endorsed
-classpath
/usr/local/java/lib/tools.jar:/usr/local/jakarta-tomcat-5.0.28_rec/bin/bootstrap.jar:/usr/local/jakarta-tomcat-5.0.28_rec/bin/commons-lo
[webadmin@pomme webadmin]$ ksh

In ksh

$ ps -ef | grep jakarta-tomcat-5.0.28_rec | grep -v grep
$

It seems as if ksh could not handle long string !!!

Thank you for your help

Regards

.

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