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Add docs for the count command

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Partial fix of issue #711
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Shaurya Shubham 2019-11-10 14:12:59 +05:30
parent 59ab11e932
commit 50616cc62c
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# count
This command counts the number of rows in a table.
## Examples -
```shell
> ls
━━━━┯━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┯━━━━━━━━━━━┯━━━━━━━━━━┯━━━━━━━━━┯━━━━━━━━━━━━━━┯━━━━━━━━━━━━━━┯━━━━━━━━━━━━━━
# │ name │ type │ readonly │ size │ created │ accessed │ modified
────┼──────────────────────────────┼───────────┼──────────┼─────────┼──────────────┼──────────────┼──────────────
0 │ Desktop │ Directory │ │ 4.1 KB │ 2 months ago │ 2 months ago │ 2 months ago
1 │ aur │ Directory │ │ 4.1 KB │ 4 hours ago │ 4 hours ago │ 4 hours ago
...
75 │ .emulator_console_auth_token │ File │ │ 16 B │ 2 months ago │ 2 months ago │ 2 months ago
76 │ bin │ Directory │ │ 4.1 KB │ 2 months ago │ 2 months ago │ 2 months ago
━━━━┷━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┷━━━━━━━━━━━┷━━━━━━━━━━┷━━━━━━━━━┷━━━━━━━━━━━━━━┷━━━━━━━━━━━━━━┷━━━━━━━━━━━━━━━
> ls | count
━━━━━━━━━
<value>
─────────
77
━━━━━━━━━
> ls | get name | count
━━━━━━━━━
<value>
─────────
77
━━━━━━━━━
> ls | where type == File | count
━━━━━━━━━
<value>
─────────
29
━━━━━━━━━
> ls | where type == Directory | count
━━━━━━━━━
<value>
─────────
48
━━━━━━━━━
> ls | where size > 2KB | count
━━━━━━━━━
<value>
─────────
57
━━━━━━━━━
```