Shell Programming and Scripting

i have a file having content
a|b|c
1|2|33
4|6|55
end
a|b|d
3|4|55
end
a|b|c
45|67|98
end

so i want to print 3rd field of header a|b|c and footer end.
e.g. o/p should be
33
55
98

Code:

awk -F'|' '$1=="a"{f=1;next}{if(f==1)print $NF;f=0}' file

thanx danmero,

i have modified the answers a littel bit, and got the results set, but it's not disaplying the 2nd row of the 1st record set(record sets are lines between header and footer).

In order to avoid the confusion,i have changed the a.txt(chnaged one marked in red)
a|b|c
1|2|33
4|6|55
............
...........
end
a|b|d
3|4|559
.......
.......
end
a|b|c
45|67|98
7|8|90
4|6|89
.......
........
end
then
awk -F'|' '$3=="c" {f=1;next}{if(f==1)print $NF;f=0}' a.txt
o/p is
33
98
but it should be as follows for column c only
33
55
.....
......
98
90
89
.....
.....
again .....if i want to print only partiuclar record of record set then how to achieve it ????
let i want to only print c column's 2nd row only
so o/p should be ,2nd rows of any c columns record set i.e.
55
90
etc

This script will do what you need, but may not be efficient. Performance will be bad if the data file is too large.

Code:

parm=$1
marker=0
while read line 
do
 if [ $line = "a|b|c" ]
 then
  marker=1
  count=0
  continue
 fi 
 if [ $marker -eq 1 ]
 then
  if [ $line = "end" ]
  then
   marker=0
  else
   count=`expr ${count} + 1`
   if [ $count -eq $parm ]
   then
     echo $line | cut -d"|" -f 3
   fi
  fi
 fi
done<datafile

Save the above as myscript.ksh and pass one parameter, which is the number of line you want as output.

For example, if you want only 3rd column of 2nd record in each record set, invoke the script as

Code:

myscript.ksh 2

Code:

awk -F'|' '$3=="c" {a=(NR + 2) ;next}{if(NR==a)print $NF}' a.txt

dear krishmaths, no expected results :-( for
if i want to print only partiuclar record of record set then how to achieve it ????
let i want to only print c column's 2nd row only
so o/p should be ,2nd rows of any c columns record set i.e.
55
90
but appreciated your help and co-ordianation .

dear danmero,

it's not working :-( , o/p is
33
98

dear danmero/krishmaths
can you have a look on the above slight modified query ???

Sorry, I correct my previous post, should work now