Grep command to show the number of results

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# 8  
Old 12-30-2019
Originally Posted by nezabudka
Some Sunday jokes
Hey nez,

How about some Monday fun Smilie

echo "all of the kings of Norway" | awk '{sum+=gsub(/of/,"&")} END{print sum}'

Taken example from Jim's sample echo message, cheers.

R. Singh
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# 9  
Old 12-30-2019
Print count of case insensitive pattern /it/
echo "It was the best of times, it was the worst of times, it was the age of wisdom, it was the age of foolishness..." | 
perl -nle '$c+=()=/it/gi; END{print $c}'


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# 10  
Old 12-30-2019
Why not
awk 'END {print gsub(/of/, "&")}' RS='\0' file

EDIT: fell into the same trap as did nezabudka below: RS=\0 splits on empty lines. Use other non-text chars instead, e.g. \001 or \377...

Last edited by RudiC; 12-30-2019 at 08:00 AM..
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# 11  
Old 12-30-2019
could be and so
awk 'END {print NR-1}' RS='pattern' file

--- Post updated at 14:00 ---

awk -vFPAT='pattern' '{print NF}' RS='' file

--- Post updated at 14:05 ---

or even so
awk -vFPAT='pattern' '$0=NF' RS='' file

# 12  
Old 12-30-2019
I must admit, I like jim mcnamara's neat response. It made me wonder about the string often all of the kinds of Norway as an example where the string might exist embedded in another word. Is this a problem to you?

By adding the -w flag, you can adjust the output:-
$ cat 283489
often all of the kings of Norway

$ grep -Fo 'of' 283489 | wc -l

$ grep -Fow 'of' 283489 | wc -l

Of course, this may or may not be useful, but I thought I should add it into the mix.

Kind regards,
This User Gave Thanks to rbatte1 For This Post:
# 13  
Old 12-30-2019
Originally Posted by nezabudka
awk -vFPAT='pattern' '{print NF}' RS='' file

Be aware that FPAT is available in gawk only. Also, the RS='' will split the file on empty lines, so use this only if the file is adequately structured.
This User Gave Thanks to RudiC For This Post:
# 14  
Old 12-30-2019
sed '
s/$/0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25/
s/^[0-9\r][0-9]* \?//
s/ .*//
' file

no matches - zero
empty line - counter overflow

Last edited by nezabudka; 12-30-2019 at 10:10 AM..
This User Gave Thanks to nezabudka For This Post:
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