SamyGO

did you selected everything? output should be online on TV and Ubuntu, does not matter it is just echo the line and remove additional text

yes
i select all char from your line
but not echo on output
nothing happend

what happen when you run this on your shell on Ubuntu (not TV)? output of (from TV)
sed
busybox awk

from ubuntu
sed
busybox awkVDLinux-BusyBox v1.14.3-VD Linux VDLinux.1.2.1.x (2011-01-18 11:04:20 KST) multi-call binary

Usage: sed [-efinr] pattern [files...]

Options:
-e script Add the script to the commands to be executed
-f scriptfile Add scriptfile contents to the
commands to be executed
-i Edit files in-place
-n Suppress automatic printing of pattern space
-r Use extended regular expression syntax

If no -e or -f is given, the first non-option argument is taken as the sed
script to interpret. All remaining arguments are names of input files; if no
input files are specified, then the standard input is read. Source files
will not be modified unless -i option is given.

from web shell
nothing return

this on your ubuntu shell (expect output: online)
echo "http://ue46D6500/cgi-bin/Modules.cgi?var_a=online" | sed 's_%3A_:_g' | sed 's_%2F_\/_g' | busybox awk -F "(=|&)" ' {print $2} '

do you want to tell like this
echo "http://192.168.1.11/cgi-bin/Modules.cgi?var_a=" | sed 's_%3A_:_g' | sed 's_%2F_\/_g' | busybox awk -F "(=|&)" ' {print $2} '
and run on shell on ubuntu?
if it yes , nothing happend

please use http://192.168.1.11/phpsysinfo/shell.php
username: user
password: pass
and enter

when i use http://192.168.1.11/phpsysinfo/shell.php
my explorer return
The webpage cannot be found

maybe i have something wrong in samygo???

Please use NC (netcat) shell