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How umask works in Linux? – A guide on setting default file permission

Wondering on ‘How umask works in Linux?’

File permission management is a frequent task in Linux systems.

And setting umask decides the default permissions of files. However, bad umask values create problems in file creation.

At Bobcares, we often get customer query on default file permissions and umask, as a part of our Server Management Services.

Today, let’s see how umask works in Linux from our Support Engineers and the proper way to set it.