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IT/Scripting.md
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@ -28,8 +28,12 @@ In Bash, different styles of quotes (or a backtick) mean different things:
| Double Quotes (") | Enclosing characters in double quotes (`"`) preserves the literal value of all characters within the quotes, with the exception of `$`, \`, `\`, and, when history expansion is enabled, `!`. The characters `$` and \‘ retain their special meaning within double quotes. A double quote may be quoted within double quotes by preceding it with a backslash. When the shell is in POSIX mode (see Bash POSIX Mode), the ‘!’ has no special meaning within double quotes, even when history expansion is enabled.<br><br>Within double quotes, substitution can be done using `$()`.<br><br>```<br>"Output of ls: $(ls)"<br>``` | | Double Quotes (") | Enclosing characters in double quotes (`"`) preserves the literal value of all characters within the quotes, with the exception of `$`, \`, `\`, and, when history expansion is enabled, `!`. The characters `$` and \‘ retain their special meaning within double quotes. A double quote may be quoted within double quotes by preceding it with a backslash. When the shell is in POSIX mode (see Bash POSIX Mode), the ‘!’ has no special meaning within double quotes, even when history expansion is enabled.<br><br>Within double quotes, substitution can be done using `$()`.<br><br>```<br>"Output of ls: $(ls)"<br>``` |
| Backtick (\`) | While a backtick is not technically a quotation mark, it's included here. Backticks are used to substitute the output a command in a location:<br>```<br>sudo chown `id -u` /some/directory<br>``` | | Backtick (\`) | While a backtick is not technically a quotation mark, it's included here. Backticks are used to substitute the output a command in a location:<br>```<br>sudo chown `id -u` /some/directory<br>``` |
## Conditionals ## Conditionals
A basic if statement in bash looks like this:
```
if somecommand; then
fi
```
## Commands ## Commands
| Command | Description | | Command | Description |
| ----------------- | ---------------------------------------------------------------------------------------------- | | ----------------- | ---------------------------------------------------------------------------------------------- |