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Egrep: conflicting matchers specified


 
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# 1  
Egrep: conflicting matchers specified

This bit of code works fine:


Code:
egrep -i '^rmcat' /etc/oratab |\
  awk -F\: '{print $1}'|\
while read ORACLE_SID
do



But when I modified it, thus:


Code:
egrep -v '^#' /etc/oratab |egrep -v '^$' | egrep -v '^listener' \
  awk -F\: '{print $1}'|\
while read ORACLE_SID
do



It produces the error


Code:
egrep: conflicting matchers specified

# 2  
Hi, a pipe appears to be missing:
Code:
egrep -v '^listener' |\

This User Gave Thanks to Scrutinizer For This Post:
# 3  
Missing pipe was it. I figured it would be something simple where I just needed another set of eyes. Thanks.
# 4  
You can consolidate
Code:
egrep -v '^#' /etc/oratab | egrep -v '^$'

into
Code:
egrep '^[^#]' /etc/oratab

And the whole thing into awk
Code:
awk -F: '/^[^#]/ && !/^listener/ {print $1}' /etc/oratab |
while read ORACLE_SID
do

Or into the shell
Code:
while IFS=":" read ORACLE_SID junk
do
  case $ORACLE_SID in
  ""|"#"*|listener*) continue ;;
  esac
  ...
done < /etc/oratab


Last edited by MadeInGermany; 02-05-2020 at 01:09 PM.. Reason: shell code needs IFS=":"

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