TLDR
Enter a command. For example: uncrustify, arc, unflatten, ack.

umask

 
Manage the read/write/execute permissions that are masked out (i.e. restricted) for newly created files by the user. More information: https://manned.org/umask.
 
  • Display the current mask in octal notation:
     
    umask
     
  • Display the current mask in symbolic (human-readable) mode:
     
    umask -S
     
  • Change the mask symbolically to allow read permission for all users (the rest of the mask bits are unchanged):
     
    umask {{a+r}}
     
  • Set the mask (using octal) to restrict no permissions for the file's owner, and restrict all permissions for everyone else:
     
    umask {{077}}

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