---
title: bits shl
categories: |
  bits
version: 0.88.0
bits: |
  Bitwise shift left for ints.
usage: |
  Bitwise shift left for ints.
---
<!-- This file is automatically generated. Please edit the command in https://github.com/nushell/nushell instead. -->

# <code>{{ $frontmatter.title }}</code> for bits

<div class='command-title'>{{ $frontmatter.bits }}</div>

## Signature

```> bits shl {flags} (bits)```

## Flags

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

## Parameters

 -  `bits`: number of bits to shift left


## Input/output types:

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

Shift left a number by 7 bits
```nu
> 2 | bits shl 7
256
```

Shift left a number with 1 byte by 7 bits
```nu
> 2 | bits shl 7 --number-bytes '1'
0
```

Shift left a signed number by 1 bit
```nu
> 0x7F | bits shl 1 --signed
254
```

Shift left a list of numbers
```nu
> [5 3 2] | bits shl 2
╭───┬────╮
│ 0 │ 20 │
│ 1 │ 12 │
│ 2 │  8 │
╰───┴────╯

```


**Tips:** Command `bits shl` was not included in the official binaries by default, you have to build it with `--features=extra` flag