изменить режимы файлов (change the file modes)
Примеры (Examples)
┌──────┬────────────────────────────────┐
│Mode │ Results │
├──────┼────────────────────────────────┤
│a+= │ Equivalent to a+,a=; clears │
│ │ all file mode bits. │
│go+-w │ Equivalent to go+,go-w; clears │
│ │ group and other write bits. │
│g=o-w │ Equivalent to g=o,g-w; sets │
│ │ group bit to match other bits │
│ │ and then clears group write │
│ │ bit. │
│g-r+w │ Equivalent to g-r,g+w; clears │
│ │ group read bit and sets group │
│ │ write bit. │
│uo=g │ Sets owner bits to match group │
│ │ bits and sets other bits to │
│ │ match group bits. │
└──────┴────────────────────────────────┘
