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I am trying to delete all empty lines after line number 3, till the end of the file:

cat ${File}
1

2
3


4

5

5



6
7



8
9


sed -e '3,${s~^$~~g}' ${File}
1

2
3


4

5

5



6
7



8
9

Observation: No change in the output.

Desired Output

1

2
3
4
5
5
6
7
8
9

Note that all blank lines at the end of file should also be removed.

Any Suggestions?

I am trying to delete all empty lines after line number 3, till the end of the file:

cat ${File}
1

2
3


4

5

5



6
7



8
9


sed -e '3,${s~^$~~g}' ${File}
1

2
3


4

5

5



6
7



8
9

Observation: No change in the output.

Desired Output

1

2
3
4
5
5
6
7
8
9

Any Suggestions?

I am trying to delete all empty lines after line number 3, till the end of the file:

cat ${File}
1

2
3


4

5

5



6
7



8
9


sed -e '3,${s~^$~~g}' ${File}
1

2
3


4

5

5



6
7



8
9

Observation: No chamge in the output.

Desired Output

1

2
3
4
5
5
6
7
8
9

Note that all blank lines at the end of file should also be removed.

Any Suggestions?

I am trying to delete all empty lines after line number 3, till the end of the file:

cat ${File}
1

2
3


4

5

5



6
7



8
9


sed -e '3,${s~^$~~g}' ${File}
1

2
3


4

5

5



6
7



8
9

Observation: No change in the output.

Desired Output

1

2
3
4
5
5
6
7
8
9

Note that all blank lines at the end of file should also be removed.

Any Suggestions?