command help


 
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# 1  
Old 01-14-2008
command help

1.
i am trying to build a command that searches a text file
and outputs the number of words which consists of two 'b' characters
in each word separatly

like
barby

(the b characters must be separated from one another)
i tried to use grep [b][b] filepath
then i know that we need to use pipe to count the result

but it prints all the word with the two b chars
one next to the other

2.
i am trying to build a command that searches a text file
and outputs the number words which consists of two 'x' characters
only
i tried to use

i can count them with wc but i cant figure out
how to filter out the undesirable words

how to construct these commands
# 2  
Old 01-15-2008
kinda looks like school work.

let me give you one hint.
search on the internet for regular expressions.
 
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