Shell Programming and Scripting

Name              Age
--------------     ---------------
Raju P             20 years
Hari                25 years
Priya S            30 years

The age of Raju P is 20 years
The age of Hari is 25 years
The age of Priya S is 30 years

while read line
do
  echo 'The age of $1 is $2'   # Here awk has to be used to give $1 & $2
done < mydatafile

awk '/<code>/{print $0; getline; while ($0~/^Name|^----/){getline;}}NF>2{x=$(NF-1) FS $NF;NF=NF-2;$1=$1; print "The age of " $0 " is " x}/<\/code/{print$0}' infile

# cat tst
<code>
Name Age
-------------- ---------------
Raju P 20 years
Hari 25 years
Priya S 30 years
</code>
<code>
Name Age
-------------- ---------------
Raju P 20 years
Hari 25 years
Priya S 30 years
</code>

# awk '/<code>/{print $0; getline; while ($0~/^Name|^----/){getline;}}NF>2{x=$(NF-1) FS $NF;NF=NF-2;$1=$1; print "The age of " $0 " is " x}/<\/code/{print$0}' tst
<code>
The age of Raju P is 20 years
The age of Hari is 25 years
The age of Priya S is 30 years
</code>
<code>
The age of Raju P is 20 years
The age of Hari is 25 years
The age of Priya S is 30 years
</code>

#!/bin/bash
while read line
do
 var=($line)
 length=${#var[@]}
 if [ "${var[$length-1]}" = "years" ]
 then
  name=${line/ ${var[$length-2]} ${var[$length-1]}}
  echo "The age of "$name" is "${var[$length-2]} ${var[$length-1]}
 else 
  echo $line
 fi
done
 
./script file

<code>
Name Age
-------------- ---------------
The age of Raju P is 20 years
The age of Hari is 25 years
The age of Priya S is 30 years
</code>

Name                       Age
-------------- ---------------
Raju P                20 years
Hari                  25 years
Priya S               30 years

$ awk '/years$/ {$(NF-1)="is "$(NF-1); $1="The age of "$1; print $0}' mydatafile
The age of Raju P is 20 years
The age of Hari is 25 years
The age of Priya S is 30 years

while read
do
    echo "$REPLY" | awk '/years$/ {$(NF-1)="is "$(NF-1); $1="The age of "$1; print $0}'
done < mydatafile