Linux Admin - head Command

head is a basic opposite of tail in relation to what part of the file operations are performed on. By default, head will read the first 10 lines of a file.

head offers similar options as tail −

Note − Head offers no -f option, since the files are appended from the bottom.

head is useful for reading descriptions of configuration files. When making such a file, it is a good idea to use the first 10 lines effectively.

[root@centosLocal centos]# head /etc/sudoers 
## Sudoers allows particular users to run various commands as 
## the root user, without needing the root password. 
## 
## Examples are provided at the bottom of the file for collections 
## of related commands, which can then be delegated out to particular 
## users or groups. 
##  
## This file must be edited with the 'visudo' command.

## Host Aliases 
[root@centosLocal centos]#