/usr/sbin/ is in grub-legacy-ec2 0.7.5-0ubuntu1.18.
This file is owned by root:root, with mode 0o755.
| File | Mime Type | Owner | Mode | Size | 
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    ..
    
        
    
                
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    /usr/sbin/grub-set-default
    
        
    
                 | 
                text/x-shellscript | root:root | 0o755 | 832 bytes | 
                    
    
        
    
    
    /usr/sbin/update-grub-legacy-ec2
    
        
    
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                text/x-shellscript | root:root | 0o755 | 43.4 KB | 
                    
    
        
    
    
    /usr/sbin/grub-set-default-legacy-ec2
    
        
    
                 | 
                text/x-shellscript | root:root | 0o755 | 3.1 KB |