started getting below error on AIX server.

[davres1]

Thu Aug 4 16:16:11 2022 command: export ORACLE_SID=XXXXX; $ORACLE_HOME/bin/sqlplus -s / as sysdba <<< "startup upgrade"

Thu Aug 4 16:16:11 2022 output:

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Thu Aug 4 16:16:11 2022 subprocess error: /bin/sh: syntax error at line 1 : `<' unexpected

Thu Aug 4 16:16:11 2022 Module fail: /bin/sh: syntax error at line 1 : `<' unexpected

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Thu Aug 4 16:16:11 2022 orapatch session end