tested okay from centos7.3 to sql server express 2014 running on windows 10.
[oracle@hmc-P55A-UD3 bin]$ ls -l total 752 -rwxr-xr-x. 1 root root 239320 May 9 15:09 bcp -rwxr-xr-x. 1 root root 525856 May 9 15:09 sqlcmd [oracle@hmc-P55A-UD3 bin]$ pwd /opt/mssql-tools/bin
[oracle@hmc-P55A-UD3 ~]$ sqlcmd -U perfstat -S 192.168.0.181,1433 Password: 1> select count(*) from sys.sql_logins; 2> go; 3> go Msg 102, Level 15, State 1, Server MP04ISLLIQY1\SQLEXPRESS, Line 2 Incorrect syntax near 'go'. 1> select count(*) from sys.sql_logins; 2> go