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awk '{$2="#"$2;print $0}' your_fileThis will add # to the start of the second (space-separated) column regardless of which position it occurs at.
sed -r -e 's/^.{15}/&#/' file
Insert '#' in position 15
Plugin mysql_native_password reported: ''mysql_native_password' is deprecated and will be removed in a future release. Please u...
