Script for making use of multiple options of sed command.

echo Enter the given database
read a1
echo
echo Database is
cat $a1
echo
echo Show first three lines of database:
sed '3q' $a1
echo
echo show database within a range 2-4:-
sed -n '2,4p' $a1
echo
echo Show database within range 3-7 and last line
sed -n -e '3,7p' -e '$p' $a1
echo
echo Show lines having pattern Meenu
sed -n '/[Mn]eenu/p' $a1



Output:-

Enter the given database
Database

Database is
|Name |Age |salary |contact no.
|Meenu |23 |40000 |7206297384
|jyoti |20 |35000 |9813456782
|mamta |21 |32000 |9017720166
|kavita |22 |30000 |9014445623
|neha |23 |34500 |8014465777
|sanchi |24 |23000 |9014356278
|nishtha |25 |24567 |7289786254
|mohina |19 |45000 |9824568753
|mohit |22 |43000 |7013442455
|pooja |21 |34590 |9013324658
|monika |34 |23000 |7823445678
|neenu |33 |34000 |8076543210

Show first three lines of database:
|Name |Age |salary |contact no.
|Meenu |23 |40000 |7206297384
|jyoti |20 |35000 |9813456782
show database within a range 2-4:-
|Meenu |23 |40000 |7206297384
|jyoti |20 |35000 |9813456782
|mamta |21 |32000 |9017720166

Show database within range 3-7 and last line
|jyoti |20 |35000 |9813456782
|mamta |21 |32000 |9017720166
|kavita |22 |30000 |9014445623
|neha |23 |34500 |8014465777
|sanchi |24 |23000 |9014356278
|neenu |33 |34000 |8076543210

|Show lines having pattern Meenu
|Meenu |23 |40000 |7206297384
|neenu |33 |34000 |8076543210