I have a script that runs the loop below: for ORACLE_SID in `ps -e -o="CMD" | grep smon|grep -v grep| awk -F "_" '{print$3}'` do .... done The problem that just came up is a rac one node instance, where the ORACLE_SID is orcl_1 or orcl_2 So the script above, in a standard rac instance would find orcl1 or orcl2, which is what I want. But with Rac one node, and the underscore in the name it just extracts orcl, when I need to extract orcl_1. Can one of you scripting gurus show me a corrected version of that for loop that gets the correct ORACLE_SID? -- Andrew W. Kerber 'If at first you dont succeed, dont take up skydiving.'