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Update fish shell #1758

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Update fish shell #1758

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25d9964
Fish page clean-up:
Dec 15, 2021
4840172
Fix formatting
Dec 15, 2021
32a9832
Clean-up:
Dec 15, 2021
a226441
Join Help section with Keys section
Dec 17, 2021
e867c9a
More descriptions and chapters
Dec 19, 2021
e21a7d7
Enhance code descriptions
Dec 19, 2021
4cff1a8
Update code samples:
Dec 19, 2021
7ae27e1
Fix quoting and code block language
Dec 19, 2021
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Fix formatting
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EmilySeville7cfg authored and EmilySeville7cfg committed Dec 15, 2021
commit 4840172dba053c2dab280900324137e32fc58032
76 changes: 38 additions & 38 deletions fish-shell.md
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Expand Up @@ -21,8 +21,8 @@ weight: -1

### Help

| `Alt H` | Show command man page description |
| `Alt W` | Show short command description |
| `Alt H` | Show command man page description |
| `Alt W` | Show short command description |

## Variables

Expand Down Expand Up @@ -57,14 +57,14 @@ set my_variable $another_variable[..-2]
math 1 + 2
```

| Operator | Performs |
| --- | --- |
| `+` | Addition |
| `-` | Subtraction |
| `*` | Multiplication |
| `/` | Division |
| `%` | Modulo |
| `^` | Exponentiation |
| Operator | Performs |
| --- | --- |
| `+` | Addition |
| `-` | Subtraction |
| `*` | Multiplication |
| `/` | Division |
| `%` | Modulo |
| `^` | Exponentiation |

## String manipulation

Expand All @@ -76,23 +76,23 @@ string match --regex --entire 'Fish' 'Hello from Fish!'
string replace --regex 'Fish' 'fish' 'Hello from Fish!'
```

| Pattern | Matches |
| --- | --- |
| `x?` | Zero or one `x` chars |
| `x*` | Any count `x` chars |
| `x+` | One or more `x` chars |
| `x{n}` | n times `x` chars |
| `x{n,m}` | n to m times `x` chars |
| `x{n,}` | n or more times `x` chars |
| `[xy]` | `x` or y char |
| `[^xy]` | not `x` or y char |

| Class | Description |
| --- | --- |
| `\w` | Word character |
| `\d` | Digit character |
| `\W` | Not word character |
| `\D` | Not digit character |
| Pattern | Matches |
| --- | --- |
| `x?` | Zero or one `x` chars |
| `x*` | Any count `x` chars |
| `x+` | One or more `x` chars |
| `x{n}` | n times `x` chars |
| `x{n,m}` | n to m times `x` chars |
| `x{n,}` | n or more times `x` chars |
| `[xy]` | `x` or y char |
| `[^xy]` | not `x` or y char |

| Class | Description |
| --- | --- |
| `\w` | Word character |
| `\d` | Digit character |
| `\W` | Not word character |
| `\D` | Not digit character |

## Conditionals

Expand Down Expand Up @@ -189,15 +189,15 @@ complete --command mycommand --short-option 'h' --long-option 'help' --descripti
complete --command mycommand --erase
```

| Option | Description |
| --- | --- |
| `--arguments` | Arguments to command itself or option |
| `--short-option` | Short option |
| `--long-option` | Long option |
| `--no-files` | Don't suggest files |
| `--force-files` | Suggest files |
| `--condition` | Display hint only when condition is true |
| `--description` | Description |
| Option | Description |
| --- | --- |
| `--arguments` | Arguments to command itself or option |
| `--short-option` | Short option |
| `--long-option` | Long option |
| `--no-files` | Don't suggest files |
| `--force-files` | Suggest files |
| `--condition` | Display hint only when condition is true |
| `--description` | Description |

## Useful built-in functions

Expand All @@ -213,5 +213,5 @@ complete --command mycommand --erase
| `-n __fish_print_hostnames` | prints a list of all known hostnames. This functions searches the fstab for nfs servers, ssh for known hosts and checks the /etc/hosts file.
| `-n __fish_print_interfaces` | prints a list of all known network interfaces.
| `-n __fish_print_packages` | prints a list of all installed packages. This function currently handles Debian, rpm and Gentoo packages.
| `-n __fish_use_subcommand` |
| `-n __fish_seen_subcommand_from init` |
| `-n __fish_use_subcommand` |
| `-n __fish_seen_subcommand_from init` |