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Update bash.md (#1760)

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Sami Harju 2021-12-22 07:21:16 +02:00 committed by GitHub
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@ -761,7 +761,7 @@ read -n 1 ans # Just one character
| `$!` | PID of last background task |
| `$$` | PID of shell |
| `$0` | Filename of the shell script |
| `$_` | Last argrument of the previous command |
| `$_` | Last argument of the previous command |
See [Special parameters](http://wiki.bash-hackers.org/syntax/shellvars#special_parameters_and_shell_variables).