Sticky bit Permissions

What are sticky bit?

Files located in a directory with the sticky bit set can only be deleted or renames by the owner of the file or by the root user.

How to set Sticky bit?

chmod +t directory

How to Remove the Sticky bit Option

chmod -t directory

The sticky bit shows up in the execute position of the “other” as in Owner, Group, Other permission.

u=rwx,g=rwx,o=rwt

Crontab Visual Format

* * * * * *
| | | | | | 
| | | | | +-- Year              (range: 1900-3000)
| | | | +---- Day of the Week   (range: 1-7, 1 standing for Monday)
| | | +------ Month of the Year (range: 1-12)
| | +-------- Day of the Month  (range: 1-31)
| +---------- Hour              (range: 0-23)
+------------ Minute            (range: 0-59)