The 'sudo' instruction is being applied to the echo command, not the subsequent file write.

Breaking it out as follows might help:

sudo -s
echo "deb http://files.freeswitch.org/repo/ubuntu-1604/freeswitch-1.6/ xenial main" > /etc/apt/sources.list.d/freeswitch.list


Sean

On Sat, Jan 13, 2018 at 3:34 PM, Ali Haider <alihaider.4189@gmail.com> wrote:
hiii
how to solve
   sudo echo "deb http://files.freeswitch.org/repo/ubuntu-1604/freeswitch-1.6/ xenial main" > /etc/apt/sources.list.d/freeswitch.list
bash: /etc/apt/sources.list.d/freeswitch.list: Permission denied


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