Cisco Catalyst 2960 Series, Configuration Manual

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appl_read
Reads Embedded Event Manager (EEM) application volatile data. This Tcl command extension provides
support for reading EEM application volatile data. EEM application volatile data can be published by a Cisco
software process that uses the EEM application publish API. EEM application volatile data cannot be published
by an EEM policy.
Currently there are no Cisco software processes that publish application volatile data.
Note
Syntax
appl_read name ? length ?
Arguments
(Mandatory) Name of the application published string
data. name
(Mandatory) Length of the string data to read. Must
be an integer number between 1 and 4294967295,
inclusive. length
Result String
data %s
Where data is the application published string data to be read.
Set _cerrno
Yes
(_cerr_sub_err = 2) FH_ESYSERR (generic/unknown error from OS/system)
This error means that the operating system reported an error. The POSIX errno value that is reported with the
error should be used to determine the cause of the operating system error.
(_cerr_sub_err = 7) FH_ENOSUCHKEY (could not find key)
This error means that the application event detector info key or other ID was not found.
(_cerr_sub_err = 9) FH_EMEMORY (insufficient memory for request)
This error means that an internal EEM request for memory failed.
Consolidated Platform Configuration Guide, Cisco IOS Release 15.2(4)E (Catalyst 2960-X Switches)
2010
appl_read