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visudo - safely edit the sudoers file

visudo [-chqsV] [[-f] sudoers]

visudo edits the sudoers file in a safe manner, similar to vipw(8).

Only check if there are errors in the existing sudoers file.
Instead of editing the default /etc/sudoers, edit the file specified as sudoers instead.
Show a help message.
Do not edit included files.
Less verbose syntax error messages.
Strict syntax checking.
Display version information and exit.

sudo(8), sudoers(5)