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Shell Programming and Scripting

To find the exact pattern

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# 1  
Old 05-13-2013
To find the exact pattern
My Input :
Hi editor
this is the
exact
pattern
which we looking for
the
previous
patternmatch


My code:
Code:
 
awk  '/pattern/ { print a } { a = $0 }'

Current output :
exact
previous

Required output: exact

I need only the output "exact" anyone help me on this
# 2  
Old 05-13-2013
Code:
awk  '$0=="pattern" {print a} {a=$0}'  file
exact

# 3  
Old 05-13-2013
you wanna print line befor where pattern is found? in your file will that pattern would be first word? or line would be only pattern?

like
pattern
patternword
pattern word

do you want to satisfy 3rd combination as well?
# 4  
Old 05-13-2013
Add word boundaries to avoid a partial match
Code:
awk  '/^pattern\s*$/ { print a } { a = $0 }'

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