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add ${PIPESTATUS[c]} special var (#1800) 

Co-authored-by: Rico Sta. Cruz <rstacruz@users.noreply.github.com>
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Nicolas Zagulajew 2022-07-07 15:09:23 +02:00 committed by GitHub
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@ -778,13 +778,14 @@ read -n 1 ans # Just one character
### Special variables
| Expression | Description |
| ---------- | -------------------------------------- |
| `$?` | Exit status of last task |
| `$!` | PID of last background task |
| `$$` | PID of shell |
| `$0` | Filename of the shell script |
| `$_` | Last argument of the previous command |
| Expression | Description |
| ------------------ | -------------------------------------- |
| `$?` | Exit status of last task |
| `$!` | PID of last background task |
| `$$` | PID of shell |
| `$0` | Filename of the shell script |
| `$_` | Last argument of the previous command |
| `${PIPESTATUS[n]}` | return value of piped commands (array) |
See [Special parameters](http://wiki.bash-hackers.org/syntax/shellvars#special_parameters_and_shell_variables).