add the $0 special variable to bash.md
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bash.md
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bash.md
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@ -735,6 +735,7 @@ read -n 1 ans # Just one character
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| `$?` | Exit status of last task |
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| `$?` | Exit status of last task |
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| `$!` | PID of last background task |
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| `$!` | PID of last background task |
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| `$$` | PID of shell |
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| `$$` | PID of shell |
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| `$0` | Filename of the shell script |
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See [Special parameters](http://wiki.bash-hackers.org/syntax/shellvars#special_parameters_and_shell_variables).
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See [Special parameters](http://wiki.bash-hackers.org/syntax/shellvars#special_parameters_and_shell_variables).
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