multiple pattern search and count the no. of occurances

raghu123 · 11-27-2008, 01:16 AM

Hi......

I have a file like this having names...file name: names.txt

raj
joe
sush
farhan
raj
ilem
adam
robert
adam
adam
joe

I have the patterns to be checked in a file: pattern.txt

gilli
ricky
saeed
raj
ilem
adam
how
smith
joe

So, i want to search each $i of pattern.txt in names.txt and count the no. of occurances of every $i

Plz help......

ghostdog74 · 11-27-2008, 01:39 AM

you can use grep with -f option. pls also make an effort to code something next time.

scriptblues · 06-03-2009, 05:17 AM

for i in `cat pattern.txt`;do k='grep $i names.txt | wc -l`; echo "$i is found $k times in names.txt" >> output.txt; done

ghostdog74 · 06-03-2009, 05:22 AM

Quote:

Originally Posted by scriptblues

for i in `cat pattern.txt`;do k='grep $i names.txt | wc -l`; echo "$i is found $k times in names.txt" >> output.txt; done

this is an old thread. also, you can use simply use grep -c. no need for that extra for loop and wc...

bigearsbilly · 06-03-2009, 04:50 PM

grep -f names.txt pattern.txt| sort| uniq -c