Unix

1) How to combine files Vertically or Horizontally.
2) How to display alternative numbers in a given number.
3) How reverse the content in a file.
4) How to find the biggest among given 3 numbers.
5) How to find the Biggest and Smallest numbers in the array.
6) How to find whether string is palindrome or not.
7) How to find the sum of digits in number.
8) How to find the number is Armstrong or not.