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Using reg. exp. variable in AWK??

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# 1  
Old 04-18-2007
Using reg. exp. variable in AWK??
Any idea please:

How to pass a reg. exp. variable to awk call in a shell???

Thank u

#!/bin/sh

reg_exp=name

awk '/reg_exp/{
print;
}' $1
# 2  
Old 04-18-2007
Code:
awk '/'$reg_exp'/{
print;
}' $1

# 3  
Old 04-18-2007
it works fine...thank u anbu23!!!
# 4  
Old 04-20-2007
Quote:
Originally Posted by anbu23
Code:
awk '/'$reg_exp'/{
print;
}' $1


if $reg_exp contains a white space awk throws an error!!!

Any Ideas??
# 5  
Old 04-20-2007
Quote:
Originally Posted by andy2000
if $reg_exp contains a white space awk throws an error!!!

Any Ideas??
Try this
Code:
awk ' "'$reg_exp'" {
print;
}' $1

# 6  
Old 04-20-2007
Try...
Code:
awk -v re="$reg_exp" '$0 ~ re{
print;
}' $1

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