How to get one complete column in mysql?

I have a script that will fetch Last_Error in mysql slave in a particular interval of time and write that to a file. To fetch Last_Error, currently I am using below command in the script. mysql -u root -pxxxxxxxxx -e "show slave status\G;" 2>&1 | grep -v "Warning: Using a password" |grep "Last_Error" The challenge I am facing is that grep "Last_Error" will only show that particular line and not complete error. For example, one of my Last_Error look like below:: Last_Error: Error 'TRIGGER command denied to user 'user'@'xx.xx.xx.xx' for table 'table_name'' on query. Default database: 'Db_name'. Query: 'UPDATE table SET user_status=0 WHERE contractid ='id.000.000'' and one another look like :: Last_Error: Error 'Duplicate entry '117583' for key 'PRIMARY'' on query. Default database: 'labs'. Query: 'insert into User (a,b,c,d) values ("Other","",now(),"") So basically I can't use A4 kind of switch with grep. Is it possible to get one complete column in mysql or any other work around?