Re: can sed take take several line to produce multiple output

> Can sed take the following input:
> 
> header,login - telnet ssh, Thu Dec 08 11:08:55 2005,
> subject,abc,def,123,456, abc.linux.com.my
> 
> 
> and produce:
> 
> Thu Dec 08 11:08:55 2005, Name=abd 2name=def phone=123
> phone2=245
>>From : abc.linux.com.my Access=telnet ssh 

If I understand correctly, the following sed script should do the 
trick:

sed 'N;s/.*- \([^,]*\), 
\(.*\)\n[^,]*,\([^,]*\),\([^,]*\),\([^,]*\),\([^,]*\), \(.*\)/\2, 
Name=\3 2name=\4 phone=\5 phone2=\6\n>From : \7 Access=\1/'

to reformat the file.

If you only want records for a given Name=, you can do


sed 'N;s/.*- \([^,]*\), 
\(.*\)\n[^,]*,\([^,]*\),\([^,]*\),\([^,]*\),\([^,]*\), \(.*\)/\2, 
Name=\3 2name=\4 phone=\5 phone2=\6\n>From : \7 
Access=\1/;/Name=abc/!d'

Those are both one-liners, in case either of our mailers bung it.

It basically just joins the two adjacent lines into a single 
buffer for manipulation, picks out the fields of interest, 
reformats them in your desired format, and then, if they don't 
match the name you want to filter on.  The second version then 
check to see if it contains "Name=abc"...if it doesn't, then it 
deletes the whole thing and moves on to the next 2-line pair.

It's been a while since I've used more than about 4 of those 
backreferences...seven was quite a hairball :)

-tim








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