A form of redirection used in shell scripts. The >> operator is similar to the > operator except instead of overwriting an existing file it will append the data to the end.

In programming:

1. C: Right bit-shift.
2. C++ istreams: Read from a stream to variable.

The bitwise operator in C/C++ that shifts bits to the right. Shifting the bits of an integer to the right is equivalent to dividing by powers of two. For example:

x >> y == x / 2y

Note that this does not happen if the integer is signed.