forked from extern/nushell
36 lines
1.1 KiB
Markdown
36 lines
1.1 KiB
Markdown
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# sum
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This command allows you to calculate the sum of values in a column.
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## Examples
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To get the sum of the file sizes in a directory, simply pipe the size column from the ls command to the sum command.
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```shell
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> ls | get size | sum
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━━━━━━━━━
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value
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━━━━━━━━━
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51.0 MB
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━━━━━━━━━
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```
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Note that sum only works for integer and byte values at the moment, and if the shell doesn't recognize the values in a column as one of those types, it will return an error.
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```shell
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> open example.csv
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━━━┯━━━━━━━━━┯━━━━━━━━┯━━━━━━━━━━
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# │ fruit │ amount │ quality
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───┼─────────┼────────┼──────────
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0 │ apples │ 1 │ fresh
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1 │ bananas │ 2 │ old
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2 │ oranges │ 7 │ fresh
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3 │ kiwis │ 25 │ rotten
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━━━┷━━━━━━━━━┷━━━━━━━━┷━━━━━━━━━━
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```
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```shell
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> open example.csv | get amount | sum
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error: Unrecognized type in stream: Primitive(String("1"))
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```
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