SHELL(command)
Description
Collects the output generated by a command executed by the system shell
Shell example
exten => s,1,Set(foo=${SHELL(echo bar)})
Note
The command supplied to this function will be executed by the system's shell, typically specified in the SHELL environment variable. There are many different system shells available with somewhat different behaviors, so the output generated by this function may vary between platforms.
If live_dangerously in asterisk.conf is set to no, this function can only be executed from the dialplan, and not directly from external protocols.
Arguments
commandrequired - The command that the shell should execute.
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