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awk help - delimited file

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# 8  
Old 10-30-2010
Quote:
Originally Posted by ashwin3086
Thanks.

Is there anyway I can achieve it without using the "\\". The reason is, I am going to do it for a set of characters in a set of fields. So i am going to generate the command based on the inputs, if I were to add the "\\" it becomes difficult to identify for which characters i need to prefix with \\.
You can do something like:
Code:
awk 'BEGIN{
  printf "Enter the character: "
  getline value < "-"
}
value=="&"{value="\\"value}
{
  gsub("x",value)
}
1' file

# 9  
Old 10-30-2010
Or you can externalize the variables like this. The ampersand will need to be escaped with two slashes if it in the replacement variable
Code:
awk -F'|' '{gsub(a,anew,$1);gsub(b,bnew,$NF)}1' OFS="|" a=a b=b anew="\\&" bnew="#" infile

The ^ , $ , (, ), { } need to be escaped with 4 \\\\ if they need to be replaced... and the \ needs 7 escapes:
bnew="\\\\\\\\"
Last edited by Scrutinizer; 10-30-2010 at 01:58 PM..
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