August 2007
Intermediate to advanced
608 pages
20h 33m
English
Content preview from Asterisk: The Future of Telephony, 2nd EditionBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
Start your free trial
Name
System() — Executes an operating system command
Synopsis
System(command)Executes a command in the
underlying operating system. This application sets a channel variable
named SYSTEMSTATUS to either
FAILURE or SUCCESS, depending on whether or not
Asterisk was successfully able to run the command.
This application is very similar to the TrySystem() application, except that it will
return -1 if it is unable to
execute the system command, whereas the TrySystem() application will always return
0.
exten => 123,1,System(echo hello > /tmp/hello.txt)