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If you want to print lines from a file that match any of the EREs stored one per line in a file named ERES, but stop using an ERE after it has matched 3 (or whatever value you assign to the maxp...

This is very limited and it works in this contrived case because the match is exactly the literal alternation of the regex. However, the purpose of regex is to represent patterns and they are not the...

If you are using a Solaris/SunOS system, use /usr/xpg4/bin/awk or nawk instead of awk.

How about
awk 'match ($0, PAT) && ++T[substr($0, RSTART, RLENGTH)]<4' PAT="abc|bcd|cde" file2
abc1
bcd1
abc2
abc3
bcd2
bcd3
cde1
cde2
cde3

How about
ps -p "25936" -o etime= | awk -F"[-:]" '{print (NF==4?$1*86400:0)+(NF>2?$2*3600:0)+$(NF-1)*60+$NF}'
735251