Hello, In my bash shell script, when I say:
sudo echo "something" >>/etc/postfix/virtual_alias_maps it could not run with the prompts: bin/mask.sh: line 18: /etc/postfix/virtual_alias_maps: Permission denied but, if I just say: echo "something" >>/etc/postfix/virtual_alias_maps and run that script with the form of "sudo bin/mask.sh", it successes. Can you help me why the first sudo failed? Thanks.
