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# 1  
Old 09-18-2012
A question about awk search
I want to search a field and print first field in these record. There is a "*" in the field I want to search, like "TRBD2*01".
I used the command like this:
Code:
awk '/TRBD2*01/ {print $1}' test.txt

But it doesn't work. The command line

Code:
 awk '/TRBD2/ {print $1}' test.txt

will work.

How should i do?

Thank you!
# 2  
Old 09-18-2012
Code:
 
awk '/TRBD2[*]01/ {print $1}' test.txt

This User Gave Thanks to rdrtx1 For This Post:
xshang
# 3  
Old 09-18-2012
Awk treats * as a wildcard character - represents zero or more chars.
For a literal * you need to escape the character:

Code:
awk '/TRBD2\*01/ {print $1}' test.txt

This User Gave Thanks to Chubler_XL For This Post:
xshang
# 4  
Old 09-18-2012
perfect! Thank you!
# 5  
Old 09-18-2012
I also do this sometimes since it seems clearer to me:

Code:
awk '/TRBD2[*]01/ { print $1 }'

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