| Which user? | |
| u | user/owner |
| g | group |
| o | other |
| a | all |
| What to do? | |
| + | add this permission |
| - | remove this permission |
| = | set exactly this permission |
| Which permissions? | |
| r | read |
| w | write |
| x | execute |
| Which number? | |
| 0 | — |
| 1 | –x |
| 2 | -w- |
| 3 | -wx |
| 4 | r– |
| 5 | r-x |
| 6 | rw- |
| 7 | rwx |
| Which user? | |
| u | user/owner |
| g | group |
| o | other |
| a | all |
| What to do? | |
| + | add this permission |
| - | remove this permission |
| = | set exactly this permission |
| Which permissions? | |
| r | read |
| w | write |
| x | execute |
| Which number? | |
| 0 | — |
| 1 | –x |
| 2 | -w- |
| 3 | -wx |
| 4 | r– |
| 5 | r-x |
| 6 | rw- |
| 7 | rwx |
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