Sed Command VS Head Tail

Well for past few months i was using the head and tail command to look into desired line inside a file... which works like this

If i want to see line number 45 from filename.txt than,

$head -45 filename.txt | tail -1

which is bit complex, but we can also use sed command(stream editor) for it, which goes like this,

$sed -45 filename.txt

Author
Waqas Rafi