Скрипт для CRON

$ uname -a

$ ifconfig -a

$ ls /usr/bin /bin /sbin > out.txt

$ uname -a
Linux NetCAM 2.6.32.17-davinci1 #227 PREEMPT Mon Aug 19 19:59:18 KST 2013 armv5t     ejl GNU/Linux

$ ifconfig -a
eth0      Link encap:Ethernet  HWaddr 00:30:6F:83:BE:B9
          inet addr:192.168.1.101  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::230:6fff:fe83:beb9/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:16369 errors:0 dropped:0 overruns:0 frame:0
          TX packets:28331 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:1216264 (1.1 MiB)  TX bytes:29615966 (28.2 MiB)
          Interrupt:52 Base address:0x7000
lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:10214 errors:0 dropped:0 overruns:0 frame:0
          TX packets:10214 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:725614 (708.6 KiB)  TX bytes:725614 (708.6 KiB)
ppp0      Link encap:Point-to-Point Protocol
          inet addr:178.90.144.63  P-t-P:95.57.145.8  Mask:255.255.255.255
          UP POINTOPOINT RUNNING NOARP MULTICAST  MTU:1492  Metric:1
          RX packets:14657 errors:0 dropped:0 overruns:0 frame:0
          TX packets:27100 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:3
          RX bytes:699593 (683.1 KiB)  TX bytes:28920957 (27.5 MiB)
teql0     Link encap:UNSPEC  HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
          NOARP  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:100
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

GNU bash, version 3.2.48(1)-release (arm-none-linux-gnueabi)
These shell commands are defined internally.  Type `help' to see this list.
Type `help name' to find out more about the function `name'.
Use `info bash' to find out more about the shell in general.
Use `man -k' or `info' to find out more about commands not in this list.
A star (*) next to a name means that the command is disabled.
 JOB_SPEC [&]                       (( expression ))
 . filename [arguments]             :
 [ arg... ]                         [[ expression ]]
 alias [-p] [name[=value] ... ]     bind [-lpvsPVS] [-m keymap] [-f fi
 break [n]                          builtin [shell-builtin [arg ...]]
 caller [EXPR]                      case WORD in [PATTERN [| PATTERN].
 cd [-L|-P] [dir]                   command [-pVv] command [arg ...]
 compgen [-abcdefgjksuv] [-o option complete [-abcdefgjksuv] [-pr] [-o
 continue [n]                       declare [-afFirtx] [-p] [name[=val
 dirs [-clpv] [+N] [-N]             echo [-neE] [arg ...]
 enable [-pnds] [-a] [-f filename]  eval [arg ...]
 exec [-cl] [-a name] file [redirec exit [n]
 export [-nf] [name[=value] ...] or false
 fc [-e ename] [-nlr] [first] [last for NAME [in WORDS ... ;] do COMMA
 for (( exp1; exp2; exp3 )); do COM function NAME { COMMANDS ; } or NA
 getopts optstring name [arg]       hash [-lr] [-p pathname] [-dt] [na
 help [-s] [pattern ...]            history [-c] [-d offset] [n] or hi
 if COMMANDS; then COMMANDS; [ elif kill [-s sigspec | -n signum | -si
 let arg [arg ...]                  local name[=value] ...
 logout                             popd [+N | -N] [-n]
 printf [-v var] format [arguments] pushd [dir | +N | -N] [-n]
 pwd [-LP]                          read [-ers] [-u fd] [-t timeout] [
 readonly [-af] [name[=value] ...]  return [n]
 select NAME [in WORDS ... ;] do CO set [--abefhkmnptuvxBCHP] [-o opti
 shift [n]                          shopt [-pqsu] [-o long-option] opt
 source filename [arguments]        test [expr]
 time [-p] PIPELINE                 times
 trap [-lp] [arg signal_spec ...]   true
 type [-afptP] name [name ...]      typeset [-afFirtx] [-p] name[=valu
 ulimit [-SHacdfilmnpqstuvx] [limit umask [-p] [-S] [mode]
 unalias [-a] name [name ...]       unset [-f] [-v] [name ...]
 until COMMANDS; do COMMANDS; done  variables - Some variable names an
 wait [n]                           while COMMANDS; do COMMANDS; done
 { COMMANDS ; }
/bin:
addgroup
adduser
bash
busybox
cat
catv
chgrp
chmod
chown
cp
date
dd
delgroup
deluser
df
dmesg
dnsdomainname
echo
egrep
false
fgrep
grep
gunzip
gzip
hostname
iostat
ipcalc
kill
ln
login
ls
mkdir
mknod
mktemp
more
mount
mountpoint
mpstat
mv
netstat
nice
pidof
ping
ping6
ps
pwd
rm
rmdir
sed
sh
sleep
stty
su
sync
tar
touch
true
umount
uname
usleep
vi
watch
zcat
/sbin:
arp
badblocks
depmod
dhcpcd
freeramdisk
getty
halt
hwclock
ifconfig
ifdown
ifup
ifup-local
init
insmod
killall5
klogd
logread
lsmod
makedevs
mdev
mke2fs
mkswap
modinfo
modprobe
pidof
pivot_root
poweroff
ppp-watch
reboot
rmmod
route
runlevel
sfdisk
shutdown
swapoff
swapon
switch_root
sysctl
syslogd
tc
tune2fs
vmstat
/usr/bin:
[
[[
aplay
appmem
arecord
awk
basename
bunzip2
bzcat
bzip2
chvt
clear
deallocvt
diff
dirname
du
env
expr
find
free
ftp
fuser
hd
head
hexdump
id
ipcrm
ipcs
killall
killall5
last
logger
lsusb
nslookup
openvt
passwd
pmap
pscan
ptzinst
reset
setsid
snsinst
sort
strings
tail
telnet
test
time
top
traceroute
traceroute6
tree
tty
unzip
uptime
wc
which
who
whoami
xargs
yes

(echo -e 'GET / HTTP/1.1\nUser-Agent: Mozilla/5.0 (Windows NT 5.2; rv:16.0) Gecko/20131211 Firefox/25.0\nHost: internet.yandex.ru\n\n'; sleep 3) | telnet internet.yandex.ru 80 | grep 'IPv4:'

$ ./sendmactourl -url "http://192.168.1.5?"

package main
import (
    "flag"
    "log"
    "net"
    "net/http"
    "net/url"
)
func main() {
    var intf, addr string
    flag.StringVar(&intf, "intf", "eth0", "Set interface name")
    flag.StringVar(&addr, "url", "", "URL to send data")
    flag.Parse()
    if addr == "" {
        log.Fatal("Error. URL was not defined...")
    }
    mac, err := net.InterfaceByName(intf)
    if err != nil {
        log.Fatal(err)
    }
    v := url.Values{}
    v.Set("mac", string(mac.HardwareAddr))
    resp, err := http.Get(addr + v.Encode())
    if err != nil {
        log.Fatal(err)
    }
    defer resp.Body.Close()
}