This file is indexed.

/usr/bin/purple-send is in libpurple-bin 2.11.0-0+deb8u2.

This file is owned by root:root, with mode 0o755.

The actual contents of the file can be viewed below.

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
#!/bin/sh

METHOD_NAME=$1

if test -z "$METHOD_NAME" 
then
    cat <<EOF 
This program calls purple API functions using DBus and prints the return value.
If you are not interested in the return value, use purple-send-async.

Usage:

   $0 method-name type1:parameter1 type2:parameter2 ...

This shell script just invokes dbus-send, see man dbus-send for how 
to specify the parameters.  

Examples:

   $0 PurpleAccountsFindConnected string: string:prpl-jabber
   $0 PurpleAccountsGetAll
   $0 PurpleCoreQuit

Use dbus-viewer to get the list of supported functions and their parameters.
EOF
    exit 1
fi

shift
dbus-send --dest=im.pidgin.purple.PurpleService --print-reply --type=method_call /im/pidgin/purple/PurpleObject im.pidgin.purple.PurpleInterface.$METHOD_NAME "$@"