The following are powerShell bitwise operators.
| Operator | Description | Expression | Result |
|---|---|---|---|
| -band | Bitwise AND | 10 -band 3 | 2 |
| -bor | Bitwise OR (inclusive) | 10 -bor 3 | 11 |
| -bxor | Bitwise OR (exclusive) | 10 -bxor 3 | 9 |
| -bnot | Bitwise NOT | -bNot 10 | -11 |
| -shl | Shift-left | 102 -shl 2 | 408 |
| -shr | Shift-right | 102 -shr 1 | 51 |
Bitwise operators act on binary format of a value. In bitwise AND operation, the resulting bit is set to 1 when both input bit are 1.
1010 (10) 0011 ( 3) -------------- bAND 0010 ( 2)
In bitwise OR (inclusive) operation, the resulting bit is set to 1 when either or both input bit are 1. The resulting bit is set to 0 when both input bit are 0.
1010 (10) 0011 ( 3) -------------- bOR (inclusive) 1011 (11)
In bitwise OR (exclusive) operation, the resulting bit is set to 1 when only one input bit is 1.
1010 (10) 0011 ( 3) -------------- bXOR (exclusive) 1001 ( 9)
The bitwise NOT operator is unary operator that produce binary complement of a value. A bit of 0 is set to 1 and 1 is set to 0, for example binary complement of 0 is -1, maximum unsigned integer (0xfffffff), and the binary complement of -1 is 0.
0000 0000 0000 1010 (10) ------------------------- bNOT 1111 1111 1111 0101 (-11, xfffffff5)
In a bitwise shift-left operation, all bits are moved "n" places to the left, where "n" is the value of the right operand. A zero is inserted in the ones place. When the left operand is an Integer (32-bit) value, the lower 5 bits of the right operand determine how many bits of the left operand are shifted. When the left operand is a Long (64-bit) value, the lower 6 bits of the right operand determine how many bits of the left operand are shifted.
In a bitwise shift-right operation, all bits are moved "n" places to the right, where "n" is specified by the right operand. The shift-right operator (-shr) inserts a zero in the left-most place when shifting a positive or unsigned value to the right. When the left operand is an Integer (32-bit) value, the lower 5 bits of the right operand determine how many bits of the left operand are shifted. When the left operand is a Long (64-bit) value, the lower 6 bits of the right operand determine how many bits of the left operand are shifted.
1010 (10) 0011 ( 3) -------------- bAND 0010 ( 2)
In bitwise OR (inclusive) operation, the resulting bit is set to 1 when either or both input bit are 1. The resulting bit is set to 0 when both input bit are 0.
1010 (10) 0011 ( 3) -------------- bOR (inclusive) 1011 (11)
In bitwise OR (exclusive) operation, the resulting bit is set to 1 when only one input bit is 1.
1010 (10) 0011 ( 3) -------------- bXOR (exclusive) 1001 ( 9)
The bitwise NOT operator is unary operator that produce binary complement of a value. A bit of 0 is set to 1 and 1 is set to 0, for example binary complement of 0 is -1, maximum unsigned integer (0xfffffff), and the binary complement of -1 is 0.
0000 0000 0000 1010 (10) ------------------------- bNOT 1111 1111 1111 0101 (-11, xfffffff5)
In a bitwise shift-left operation, all bits are moved "n" places to the left, where "n" is the value of the right operand. A zero is inserted in the ones place. When the left operand is an Integer (32-bit) value, the lower 5 bits of the right operand determine how many bits of the left operand are shifted. When the left operand is a Long (64-bit) value, the lower 6 bits of the right operand determine how many bits of the left operand are shifted.
| Expression | Result | Binary Result |
|---|---|---|
| 21 -shl 0 | 21 | 0001 0101 |
| 21 -shl 1 | 42 | 0010 1010 |
| 21 -shl 2 | 84 | 0101 0100 |
| Expression | Result | Binary | Hex |
|---|---|---|---|
| 21 -shr 0 | 21 | 0001 0101 | 0x15 |
| 21 -shr 1 | 10 | 0000 1010 | 0x0A |
| 21 -shr 2 | 5 | 0000 0101 | 0x05 |
| 21 -shr 31 | 0 | 0000 0000 | 0x00 |
| 21 -shr 32 | 21 | 0001 0101 | 0x15 |
| 21 -shr 64 | 21 | 0001 0101 | 0x15 |
| 21 -shr 65 | 10 | 0000 1010 | 0x0A |
| 21 -shr 66 | 5 | 0000 0101 | 0x05 |
| [int]::MaxValue -shr 1 | 1073741823 | 0x3FFFFFFF | |
| [int]::MinValue -shr 1 | -1073741824 | 0xC0000000 | |
| -1 -shr 1 | -1 | 0xFFFFFFFF |
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