I have been searching for proxy settings. I have searched a lot and edited file .apmrc inside ~.atom and created a folder ~.atomrccache. and mentioned proxy settings.
apm config set https-proxy https://:@proxy.com:6788
apm config set http-proxy http://:@proxy.com:6788
But nothing is working. I feel atom is a good editor, but without plugins I am unable to do anything.