Extensive Nu Map Cleanup

[NotTheDr01ds]

Pretty extensive cleanup on aisle 6, err, Nu map from other shells and domain specific languages:

• Formatted all commands in Markdown
• Linked to online help for all Nushell commands
• Replaced/fixed deprecated/removed commands (calc, nth, sum)
• Disambiguated and fixed range (command) and range (type)
• Bash printf added as a string formatter
• Keybindings added for exit and clear
• PowerShell NewItem -ItemType Directory added for mkdir
• PowerShell Get-Command added for which
• $env.FOO = "bar" example added for Nushell
• Fixed incorrect Bash export statement
• ls --du added for du
• $nu.default-config-dir added for config
• And more

[fdncred]

Nice cleanup. I'm not sure it's really possible to have this list complete. Like uname is now a thing where it wasn't when I first created this. There are a lot of str commands that aren't mentioned, which is fine. It's just kind of a hard thing to keep this evergreen.

size was renamed str stats - so that should probably be in there still.

[NotTheDr01ds]

I'm not sure it's really possible to have this list complete.

Agreed, especially as I start looking at the Python (and other languages) mappings.

Like uname is now a thing where it wasn't when I first created this.

Ah, right - I did know that. I'll fix that when I get to a stopping point on the Language mapping.

size was renamed str stats - so that should probably be in there still.

Thanks - I'll update that one as well.

There are a lot of str commands that aren't mentioned, which is fine.

On the bright side, I was able to link to the main str command, so at least they are represented there.

[NotTheDr01ds]

Oh, and I came back here to add some "formatting notes" as well ...

• I tried to match Markdown column widths, but if one got too wide for a particular row, I just fixed/aligned it in the next column.
• Because of wrapping ugliness, I've added some hardcoded <br />'s and even (since   can't be used inside backticks), some hardcoded nonbreaking-spaces (character code 0160). Hopefully this doesn't cause issues ...

[fdncred]

Ping me once you're ready on this one too.

[NotTheDr01ds]

Ping me once you're ready on this one too.

Should be good to go - Thanks!

[fdncred]

Thanks