DBI1011I Error when using db2iupdt to enable Text Search
According to the syntax diagram at http://pic.dhe.ibm.com/infocenter/db2luw/v10r5/topic/com.ibm.db2.luw.admin.cmd.doc/doc/r0002060.html, you should enclose the text search options in double quotation marks: 

-j "TEXT_SEARCH,db2j_db2inst1,55000"


Don't forget to escape them in the shell.