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grep count across multiple files

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# 1  
Old 05-07-2008
grep count across multiple files
I have a number of simulation log files and I want to get a total count of the "PASSED" expression in them. If I use grep -c <files>, grep would give a tally for each file. I just want one number, the total count. How do I do that?
# 2  
Old 05-07-2008
Code:
grep -c PASSED <files> | awk -F: '{ s+=$2 } END { print s }'

# 3  
Old 05-07-2008
Hi.

You could cat them all and pipe into grep ... cheers, drl
# 4  
Old 05-14-2008
grep -l <string> <files> | wc -l
# 5  
Old 05-15-2008
That counts the number of files with PASSED in them, I was under the impression that the number of lines was the interesting number (there could be more than one per file).

Second drl's suggestion;

Code:
cat files | grep -c PASSED

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