Redirecting command output to a variable in bash fails
For nginx possible situation when configtest can be successful with error in config files.Example:
nginx: [warn] conflicting server name "test.com" on 0.0.0.0:80, ignorednginx: the configuration file /etc/nginx/nginx.conf syntax is oknginx: configuration file /etc/nginx/nginx.conf test is successfulfor correct check errors in bash scripts need use:
if [[ $((sudo /sbin/service nginx configtest) 2>&1 | grep "failed\|warn" ) ]]; then echo "ERROR!!!"else echo "OK!!!"fi