LOGS1=$(grep -E -i 'err|warn' /opt/backup/exports.log /opt/backup/imports.log && grep "tar:" /opt/backup/h2_backups.log /opt/backup/st_backups.log)

if [ -n "$LOGS1" ] ]; then
        COLOUR="yellow"
        MESSAGE="Logs contain warnings. Backups may be incomplete. Invetigate these warnings:n$LOGS"

$ Q=$(grep text file 2>&1)
$ echo $Q
grep: file: No such file or directory

command >file 2>&1