Search using sed

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# 1  
Old 08-14-2001
Search using sed

May i know how to perform a search using sed? For example, a user enter a string, and i need to search it in a file details.dat to verify it. And additional how to create a auto-generate number? And it can be increment each time a record added?
# 2  
Old 08-14-2001
you can use

with sh shell

sed "s/.*\(your word description\).*$/\1/g" yourFile

but me for this job I prefer awk
this command count the presence of "your word"
awk -f 'param.awk' yourFile

where param.awk is the file :

if (/your word /)
{nligne = nligne + 1 }
END {print nlignes}' yourFile

but I 'm not sure

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