Logs extracting, limiting cpulimit - sed

Question

I have the following script for extraction of logs.
Need to make work it with cpulimit, to not overload the server. Can anyone help?
nice -20 zcat /var/detail-20150418.gz | sed '/./{H;$!d;};x;/46.241.178.96/!d' > /tmp/new.txt
nice -20 sed -n '/Acct-Status-Type/,/Called-Station-Id/p' /tmp/new.txt > /tmp/new_2.txt
rm /tmp/new.txt
nice -20 sed '/Acct-Status-Type/{x;p;x;}' /tmp/new_2.txt > /tmp/new_3.txt
rm /tmp/new_2.txt
grep -v '\(Acct-Authentic\|Acct-Input-Octets\|Acct-Input-Gigawords\|Acct-Output-Octets\|Acct-Output-Gigawords\|Acct-Input-Packets\|Acct-Output-Packets\|Acct-Session-Time\)' /tmp/new_3.txt > /tmp/new_4.txt
rm /tmp/new_3.txt
sed 's/^[ \t]*//;s/[ \t]*$//' /tmp/new_4.txt | paste -s -d ',' | sed 's/,,/\n/g' | sed 's/^[,]*//;s/[,]*$//' > /tmp/new_5.txt
rm /tmp/new_4.txt
sed 's/Acct-Status-Type = //' /tmp/new_5.txt | sed 's/User-Name = //' |sed 's/Event-Timestamp = //' | sed 's/Acct-Terminate-Cause = //' | sed 's/Framed-IP-Address = //' | sed 's/Called-Station-Id = //' > /tmp/new_6.txt
rm /tmp/new_5.txt
awk -F"," '{ print $3 "," $1 "," $2 "," $6 "," $5 "," $4}' /tmp/new_6.txt | sed -e 's/"//g' | sed -e 's/,,/,/g' > /tmp/log.txt
rm /tmp/new_6.txt

Answer 1

Getting rid of all that disk IO will help a lot:
nice -20 sh <<'END_SCRIPT' > /tmp/log.txt
zcat /var/detail-${date}.gz |
sed '/./{H;$!d;};x;/46.241.178.96/!d' |
sed -n '/Acct-Status-Type/,/Called-Station-Id/p' |
sed '/Acct-Status-Type/{x;p;x;}' |
grep -Ev '(Acct-Authentic|Acct-Input-Octets|Acct-Input-Gigawords|Acct-Output-Octets|Acct-Output-Gigawords|Acct-Input-Packets|Acct-Output-Packets|Acct-Session-Time)' |
sed 's/^[ \t]*//;s/[ \t]*$//' |
paste -s -d ',' |
sed -e 's/,,/\n/g' \
-e 's/^[,]*//;s/[,]*$//' \
-e 's/Acct-Status-Type = //' \
-e 's/User-Name = //' \
-e 's/Event-Timestamp = //' \
-e 's/Acct-Terminate-Cause = //' \
-e 's/Framed-IP-Address = //' \
-e 's/Called-Station-Id = //' |
awk -F"," '{ print $3 "," $1 "," $2 "," $6 "," $5 "," $4}' |
sed -e 's/"//g' |
sed -e 's/,,/,/g'
END_SCRIPT
All the commands except zcat can be consolidated into a single awk or perl script: I don't have the time to help you with that right now.