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Regular expression in grep -E | awk print


 
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# 1  
Old 10-01-2009
Regular expression in grep -E | awk print

Hi All,

I have file.txt with contents like this:

random text
To: recipient@email.co.uk
<HTML>S7randomtext more random text
random text
To: recip@smtpemail.com
<HTML>E5randomtext more random text
random text
I need the output to look like this:

1,,,1,S7
1,,,1,E5

My code so far is:
Code:
 
grep -E "[A-Z][0-9]" file.txt | awk '{print ",1,,,1,"[A-Z][0-9]}' > out.txt

but I get this error: awk: line 1: syntax error at or near [

How can I get the Regular Expression [A-Z][0-9] into the print of awk??? Please help asap

Last edited by terry2009; 10-02-2009 at 05:41 AM..
# 2  
Old 10-01-2009
Code:
echo '<HTML>S7randomtext' | sed 's#.*>\([A-Z][0-9]\).*#1,,,1,\1#'

# 3  
Old 10-01-2009
Thanks, but would this work (this is a snippet of a much much larger script):

Code:
grep -E "[A-Z][0-9]" file.txt | sed 's#.*>\([A-Z][0-9]\).*#1,,,1,\1#' > out.txt

# 4  
Old 10-01-2009
Quote:
Originally Posted by terry2009
Thanks, but would this work (this is a snippet of a much much larger script):

Code:
grep -E "[A-Z][0-9]" file.txt | sed 's#.*>\([A-Z][0-9]\).*#1,,,1,\1#' > out.txt

Hello friends, could you please tell me what does " > " stands for in SED part of the script? I understand all the regex except it,

regards
# 5  
Old 10-01-2009
Quote:
Originally Posted by terry2009
Thanks, but would this work (this is a snippet of a much much larger script):

Code:
grep -E "[A-Z][0-9]" file.txt | sed 's#.*>\([A-Z][0-9]\).*#1,,,1,\1#' > out.txt

you don't need 'grep' if you're using 'sed':
Code:
sed '/[A-Z][0-9]/ s#.*>\([A-Z][0-9]\).*#1,,,1,\1#' file.txt > out.txt

# 6  
Old 10-01-2009
Quote:
Originally Posted by EAGL€
Hello friends, could you please tell me what does " > " stands for in SED part of the script? I understand all the regex except it,

regards
It's a literal > (meaning match a greater-than sign, or in this context an angled bracket)
# 7  
Old 10-01-2009
Quote:
Originally Posted by EAGL€
Hello friends, could you please tell me what does " > " stands for in SED part of the script? I understand all the regex except it,

regards
It's not part of an RE. Look at the original pattern:
Code:
echo '<HTML>S7randomtext' | sed 's#.*>\([A-Z][0-9]\).*#1,,,1,\1#'


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