bits shl for bits> bits shl {flags} (bits)
--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
bits: number of bits to shift left| input | output | 
|---|---|
| int | int | 
| list<int> | list<int> | 
Shift left a number by 7 bits
>2|bits shl7
256
Shift left a number with 1 byte by 7 bits
>2|bits shl7-n'1'
0
Shift left a signed number by 1 bit
>0x7F|bits shl1-s
254
Shift left a list of numbers
> [532] |bits shl2
╭───┬────╮
│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
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    https://www.nushell.sh/commands/docs/bits_shl.html