Integrated shell for Quagga routing software 내용 정리.
vtysh is a integrated shell for Quagga routing software.
Execute boot startup configuration. It makes sense only if integrated config file is in use(not default in Quagga).
-c, --command <command>
Specify command to be executed under batch mode. It behaves like -c option in any other shell - command is executed and vtysh exits.
It's useful for gathering info from Quagga routing software or reconfiguring daemons from inside shell scripts, etc. Note that multiple commands may be executed by using more than one -c option and/or embedding linefeed characters inside the command string.