---
title: bits not
categories: |
  bits
version: 0.104.0
bits: |
  Performs logical negation on each bit.
usage: |
  Performs logical negation on each bit.
editLink: false
contributors: false
---
<!-- This file is automatically generated. Please edit the command in https://github.com/nushell/nushell instead. -->

# `bits not` for [bits](/commands/categories/bits.md)

<div class='command-title'>Performs logical negation on each bit.</div>

## Signature

```> bits not {flags} ```

## Flags

 -  `--signed, -s`: always treat input number as a signed number
 -  `--number-bytes, -n {int}`: the size of unsigned number in bytes, it can be 1, 2, 4, 8, auto


## Input/output types:

| input        | output       |
| ------------ | ------------ |
| binary       | binary       |
| int          | int          |
| list\<binary\> | list\<binary\> |
| list\<int\>    | list\<int\>    |
## Examples

Apply logical negation to a list of numbers
```nu
> [4 3 2] | bits not
╭───┬─────╮
│ 0 │ 251 │
│ 1 │ 252 │
│ 2 │ 253 │
╰───┴─────╯

```

Apply logical negation to a list of numbers, treat input as 2 bytes number
```nu
> [4 3 2] | bits not --number-bytes 2
╭───┬───────╮
│ 0 │ 65531 │
│ 1 │ 65532 │
│ 2 │ 65533 │
╰───┴───────╯

```

Apply logical negation to a list of numbers, treat input as signed number
```nu
> [4 3 2] | bits not --signed
╭───┬────╮
│ 0 │ -5 │
│ 1 │ -4 │
│ 2 │ -3 │
╰───┴────╯

```

Apply logical negation to binary data
```nu
> 0x[ff 00 7f] | bits not
Length: 3 (0x3) bytes | printable whitespace ascii_other non_ascii
00000000:   00 ff 80                                             0××

```