Need help with shell script

Netherxx · #1 (**permalink**) 3 Weeks Ago

All,

I need some help with a shell script that is supposed to look in a text file. In that text file, fields are separated between accolades (starting with { and ending with }).

I want to loop through the fields in the file, and look into each field to find a specific value.

I have found that AWK has a field separator function, but this when i fill in the Field separater "{" it gives me the wrong result.
The text file looks like this:

Code:

 
{{This is the first field}{This is the second field}{This is the third 
field}{Fourth}{Fifth}}

Franklin52 · #2 (**permalink**) 3 Weeks Ago

You can use braces as fieldseparators, and access the first field as $3, the second field as $5 and so forth. Something like:

Code:

awk -F "[{}]" '{print $3,$5,$7,$9,$11}' RS= textfile

Netherxx · #3 (**permalink**) 3 Weeks Ago

Thanks !

How can i loop these records and compare the values of those fields?

i assume that i need to have an if statement embedded in the awk clause, but haven't got a clue where to begin.

Franklin52 · #4 (**permalink**) 3 Weeks Ago

Something like this:

Code:

awk -F "[{}]" '{
  if($3==".."){...} # If field 1 == "..." do something
  if($5==".."){...} # If field 2 == "..." do something
  .
  .
}' RS= textfile

Have a read of some awk tutorials here:

Unix Tutorials/Programming Tutorials/Shell Scripting Tutorials

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