Different ways to split the file contents

   In one of our earlier articles, we saw different ways to join all lines in a file. In this article, we will see the different ways in which we can split the file contents of a file.  Some even refer to this as converting rows into columns of a file.

Let us assume a file, say "a" with the following contents:

$ cat a
a,b,c,d

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Login to a UNIX account from Windows without password

   UNIX users login to their unix boxes umpteen times in a day. Every time, while logging in, we give username and passwords which, takes quite a bit of time, if you happen to login many times in a day. In this article, we will see how we can login to a UNIX account without providing username and password using ssh.

Logging into an UNIX account usually happens in 2 ways:

1. User is already in a UNIX box or server. He tries to login to another UNIX server from the first one.
2. User logs into the UNIX box using putty installed in his Windows system.

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C program to multiply, divide and find reminder for x by 4 without arithmetic operators?

  One of my friends asked me an interesting interview question. The question is like this: How to multiply, divide and find reminder of a number X by 4 without using arithmetic operators?

   Since we are not supposed to use arithmetic operators, none of the +,-,*,/% can be used. Binary operators always help us in this regard.

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