Format in AWK please

Shell Programming and Scripting
1

Am new to AWk, Can anyone help me to get excepected output from given input please.

input file
student: name
details of them = details_needed
class: 5th_needed
adress: address_needed

Expected output:
details of them = 5th_needed = address_needed

---------- Post updated at 10:48 AM ---------- Previous update was at 10:27 AM ----------

CAn anyone help me please

2 
% cat testfile
student: name
details of them = details_needed
class: 5th_needed
adress: address_needed

% awk 'BEGIN {RS=""; FS="\n"};
        { print gensub("student:[^\n]*\n([^=]*) = [^:]*: ([^\n]*)[^:]*: ", "\\1 = \\2 = ", "g") }' testfile
details of them = 5th_needed = address_needed

May be there is a better solution.

3

Its not working for me....Am using linux...Am getting whole file content.. Can you please help me?

4

Please give an example of the real text file with actual data and with several records.

5

Hi,

Try this

awk 'BEGIN {print "output"} 
{sub(/\(/,"(")} 
/^details/{a=$1 "="} 
/^class/{a=a $2} 
/^adress/{print a=a "=" $2}' input_file

---------- Post updated at 10:53 PM ---------- Previous update was at 10:51 PM ----------

Delimiter is missing..sorry..

Try this,

awk -F: 'BEGIN {print "output"}
{sub(/\(/,"(")}
/^details/{a=$1 "="}
/^class/{a=a $2}
/^adress/{print a=a "=" $2}' input_file

6

I update vasanth's solution

# awk -F':' '/^details/{split($0, a, "=")};  /^class/{b=$2} /^adress/{print a[1]"="b" ="$2}' file1
details of them = 5th_needed = address_needed
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