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number of occurence using grep -c then assigning it to a variable

 
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# 1  
Old 02-23-2009
number of occurence using grep -c then assigning it to a variable
Hi guys!
I need to count the occurence of a certain pattern.
For example the pattern is PC.

the contents of the file sample.txt:

A PC
asdfgadfjkl
asdfa PC sadfaf
fdsPCasdfg

if i use grep -c PC sample.txt
it will display 3 as the number of occurence
how do i save that number to a particular variable?

I know that grep -c will only count the first occurence in a line.
And as of now the patterns that i need will only occur once per line so thats fine with me.
How about if there are multiple occurence of the word PC in a single line (for future referrence)?
# 2  
Old 02-23-2009
Code:
a=$(grep -c PC sample.txt)

 
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