8 5 5
user group world
r+w+x r+x r+x
4+2+2 4+0+1 4+0+1 = 855
The permission mode is computed by adding up the following values for the user, the file group, and for everyone else. The diagram shows how.
▪ Read 4 – Allowed to read files
▪ Write 2 – Allowed to write/modify files
▪ Execute 1 – Read/write/delete/modify/directory
7 4 4
user group world
r+w+x r r
4+2+1 4+0+0 4+0+0 = 744
Example Permission Modes
Mode Str Perms Explanation
0477 -r–rwxrwx owner has read only (4), other and group has rwx (7)
0677 -rw-rwxrwx owner has rw only(6), other and group has rwx (7)
0444 -r–r–r– all have read only (4)
0666 -rw-rw-rw- all have rw only (6)
0400 -r——– owner has read only(4), group and others have no permission(0)
0600 -rw——- owner has rw only, group and others have no permission
0470 -r–rwx— owner has read only, group has rwx, others have no permission
0407 -r—–rwx owner has read only, other has rwx, group has no permission
0670 -rw-rwx— owner has rw only, group has rwx, others have no permission
0607 -rw—-rwx owner has rw only, group has no permission and others have rwx
chmod 0 ———-
chmod 1 ———x
chmod 2 ——–w-
chmod 3 ——–wx
chmod 4 ——-r–
chmod 5 ——-r-x
chmod 6 ——-rw-
chmod 7 ——-rwx
chmod 10 ——x—
chmod 11 ——x–x
chmod 12 ——x-w-
chmod 13 ——x-wx
chmod 14 ——xr–
chmod 15 ——xr-x
chmod 16 ——xrw-
chmod 17 ——xrwx
chmod 20 —–w—-
chmod 21 —–w—x
chmod 22 —–w–w-
chmod 23 —–w–wx
chmod 24 —–w-r–
chmod 25 —–w-r-x
chmod 26 —–w-rw-
chmod 27 —–w-rwx
chmod 30 —–wx—
chmod 31 —–wx–x
chmod 32 —–wx-w-
chmod 33 —–wx-wx
chmod 34 —–wxr–
chmod 35 —–wxr-x
chmod 36 —–wxrw-
chmod 37 —–wxrwx
chmod 40 —-r—–
chmod 41 —-r—-x
chmod 42 —-r—w-
chmod 43 —-r—wx
chmod 44 —-r–r–
chmod 45 —-r–r-x
chmod 46 —-r–rw-
chmod 47 —-r–rwx
chmod 50 —-r-x—
chmod 51 —-r-x–x
chmod 52 —-r-x-w-
chmod 53 —-r-x-wx
chmod 54 —-r-xr–
chmod 55 —-r-xr-x
chmod 56 —-r-xrw-
chmod 57 —-r-xrwx
chmod 60 —-rw—-
chmod 61 —-rw—x
chmod 62 —-rw–w-
chmod 63 —-rw–wx
chmod 64 —-rw-r–
chmod 65 —-rw-r-x
chmod 66 —-rw-rw-
chmod 67 —-rw-rwx
chmod 70 —-rwx—
chmod 71 —-rwx–x
chmod 72 —-rwx-w-
chmod 73 —-rwx-wx
chmod 74 —-rwxr–
chmod 75 —-rwxr-x
chmod 76 —-rwxrw-
chmod 77 —-rwxrwx
chmod 100 —x——
chmod 101 —x—–x
chmod 102 —x—-w-
chmod 103 —x—-wx
chmod 104 —x—r–
chmod 105 —x—r-x
chmod 106 —x—rw-
chmod 107 —x—rwx
chmod 110 —x–x—
chmod 111 —x–x–x
chmod 112 —x–x-w-
chmod 113 —x–x-wx
chmod 114 —x–xr–
chmod 115 —x–xr-x
chmod 116 —x–xrw-
chmod 117 —x–xrwx
chmod 120 —x-w—-
chmod 121 —x-w—x
chmod 122 —x-w–w-
chmod 123 —x-w–wx
chmod 124 —x-w-r–
chmod 125 —x-w-r-x
chmod 126 —x-w-rw-
chmod 127 —x-w-rwx
chmod 130 —x-wx—
chmod 131 —x-wx–x
chmod 132 —x-wx-w-
chmod 133 —x-wx-wx
chmod 134 —x-wxr–
chmod 135 —x-wxr-x
chmod 136 —x-wxrw-
chmod 137 —x-wxrwx
chmod 140 —xr—–
chmod 141 —xr—-x
chmod 142 —xr—w-
chmod 143 —xr—wx
chmod 144 —xr–r–
chmod 145 —xr–r-x
chmod 146 —xr–rw-
chmod 147 —xr–rwx
chmod 150 —xr-x—
chmod 151 —xr-x–x
chmod 152 —xr-x-w-
chmod 153 —xr-x-wx
chmod 154 —xr-xr–
chmod 155 —xr-xr-x
chmod 156 —xr-xrw-
chmod 157 —xr-xrwx
chmod 160 —xrw—-
chmod 161 —xrw—x
chmod 162 —xrw–w-
chmod 163 —xrw–wx
chmod 164 —xrw-r–
chmod 165 —xrw-r-x
chmod 166 —xrw-rw-
chmod 167 —xrw-rwx
chmod 170 —xrwx—
chmod 171 —xrwx–x
chmod 172 —xrwx-w-
chmod 173 —xrwx-wx
chmod 174 —xrwxr–
chmod 175 —xrwxr-x
chmod 176 —xrwxrw-
chmod 177 —xrwxrwx
chmod 200 –w——-
chmod 201 –w——x
chmod 202 –w—–w-
chmod 203 –w—–wx
chmod 204 –w—-r–
chmod 205 –w—-r-x
chmod 206 –w—-rw-
chmod 207 –w—-rwx
chmod 210 –w—x—
chmod 211 –w—x–x
chmod 212 –w—x-w-
chmod 213 –w—x-wx
chmod 214 –w—xr–
chmod 215 –w—xr-x
chmod 216 –w—xrw-
chmod 217 –w—xrwx
chmod 220 –w–w—-
chmod 221 –w–w—x
chmod 222 –w–w–w-
chmod 223 –w–w–wx
chmod 224 –w–w-r–
chmod 225 –w–w-r-x
chmod 226 –w–w-rw-
chmod 227 –w–w-rwx
chmod 230 –w–wx—
chmod 231 –w–wx–x
chmod 232 –w–wx-w-
chmod 233 –w–wx-wx
chmod 234 –w–wxr–
chmod 235 –w–wxr-x
chmod 236 –w–wxrw-
chmod 237 –w–wxrwx
chmod 240 –w-r—–
chmod 241 –w-r—-x
chmod 242 –w-r—w-
chmod 243 –w-r—wx
chmod 244 –w-r–r–
chmod 245 –w-r–r-x
chmod 246 –w-r–rw-
chmod 247 –w-r–rwx
chmod 250 –w-r-x—
chmod 251 –w-r-x–x
chmod 252 –w-r-x-w-
chmod 253 –w-r-x-wx
chmod 254 –w-r-xr–
chmod 255 –w-r-xr-x
chmod 256 –w-r-xrw-
chmod 257 –w-r-xrwx
chmod 260 –w-rw—-
chmod 261 –w-rw—x
chmod 262 –w-rw–w-
chmod 263 –w-rw–wx
chmod 264 –w-rw-r–
chmod 265 –w-rw-r-x
chmod 266 –w-rw-rw-
chmod 267 –w-rw-rwx
chmod 270 –w-rwx—
chmod 271 –w-rwx–x
chmod 272 –w-rwx-w-
chmod 273 –w-rwx-wx
chmod 274 –w-rwxr–
chmod 275 –w-rwxr-x
chmod 276 –w-rwxrw-
chmod 277 –w-rwxrwx
chmod 300 –wx——
chmod 301 –wx—–x
chmod 302 –wx—-w-
chmod 303 –wx—-wx
chmod 304 –wx—r–
chmod 305 –wx—r-x
chmod 306 –wx—rw-
chmod 307 –wx—rwx
chmod 310 –wx–x—
chmod 311 –wx–x–x
chmod 312 –wx–x-w-
chmod 313 –wx–x-wx
chmod 314 –wx–xr–
chmod 315 –wx–xr-x
chmod 316 –wx–xrw-
chmod 317 –wx–xrwx
chmod 320 –wx-w—-
chmod 321 –wx-w—x
chmod 322 –wx-w–w-
chmod 323 –wx-w–wx
chmod 324 –wx-w-r–
chmod 325 –wx-w-r-x
chmod 326 –wx-w-rw-
chmod 327 –wx-w-rwx
chmod 330 –wx-wx—
chmod 331 –wx-wx–x
chmod 332 –wx-wx-w-
chmod 333 –wx-wx-wx
chmod 334 –wx-wxr–
chmod 335 –wx-wxr-x
chmod 336 –wx-wxrw-
chmod 337 –wx-wxrwx
chmod 340 –wxr—–
chmod 341 –wxr—-x
chmod 342 –wxr—w-
chmod 343 –wxr—wx
chmod 344 –wxr–r–
chmod 345 –wxr–r-x
chmod 346 –wxr–rw-
chmod 347 –wxr–rwx
chmod 350 –wxr-x—
chmod 351 –wxr-x–x
chmod 352 –wxr-x-w-
chmod 353 –wxr-x-wx
chmod 354 –wxr-xr–
chmod 355 –wxr-xr-x
chmod 356 –wxr-xrw-
chmod 357 –wxr-xrwx
chmod 360 –wxrw—-
chmod 361 –wxrw—x
chmod 362 –wxrw–w-
chmod 363 –wxrw–wx
chmod 364 –wxrw-r–
chmod 365 –wxrw-r-x
chmod 366 –wxrw-rw-
chmod 367 –wxrw-rwx
chmod 370 –wxrwx—
chmod 371 –wxrwx–x
chmod 372 –wxrwx-w-
chmod 373 –wxrwx-wx
chmod 374 –wxrwxr–
chmod 375 –wxrwxr-x
chmod 376 –wxrwxrw-
chmod 377 –wxrwxrwx
chmod 400 -r——–
chmod 401 -r——-x
chmod 402 -r——w-
chmod 403 -r——wx
chmod 404 -r—–r–
chmod 405 -r—–r-x
chmod 406 -r—–rw-
chmod 407 -r—–rwx
chmod 410 -r—-x—
chmod 411 -r—-x–x
chmod 412 -r—-x-w-
chmod 413 -r—-x-wx
chmod 414 -r—-xr–
chmod 415 -r—-xr-x
chmod 416 -r—-xrw-
chmod 417 -r—-xrwx
chmod 420 -r—w—-
chmod 421 -r—w—x
chmod 422 -r—w–w-
chmod 423 -r—w–wx
chmod 424 -r—w-r–
chmod 425 -r—w-r-x
chmod 426 -r—w-rw-
chmod 427 -r—w-rwx
chmod 430 -r—wx—
chmod 431 -r—wx–x
chmod 432 -r—wx-w-
chmod 433 -r—wx-wx
chmod 434 -r—wxr–
chmod 435 -r—wxr-x
chmod 436 -r—wxrw-
chmod 437 -r—wxrwx
chmod 440 -r–r—–
chmod 441 -r–r—-x
chmod 442 -r–r—w-
chmod 443 -r–r—wx
chmod 444 -r–r–r–
chmod 445 -r–r–r-x
chmod 446 -r–r–rw-
chmod 447 -r–r–rwx
chmod 450 -r–r-x—
chmod 451 -r–r-x–x
chmod 452 -r–r-x-w-
chmod 453 -r–r-x-wx
chmod 454 -r–r-xr–
chmod 455 -r–r-xr-x
chmod 456 -r–r-xrw-
chmod 457 -r–r-xrwx
chmod 460 -r–rw—-
chmod 461 -r–rw—x
chmod 462 -r–rw–w-
chmod 463 -r–rw–wx
chmod 464 -r–rw-r–
chmod 465 -r–rw-r-x
chmod 466 -r–rw-rw-
chmod 467 -r–rw-rwx
chmod 470 -r–rwx—
chmod 471 -r–rwx–x
chmod 472 -r–rwx-w-
chmod 473 -r–rwx-wx
chmod 474 -r–rwxr–
chmod 475 -r–rwxr-x
chmod 476 -r–rwxrw-
chmod 477 -r–rwxrwx
chmod 500 -r-x——
chmod 501 -r-x—–x
chmod 502 -r-x—-w-
chmod 503 -r-x—-wx
chmod 504 -r-x—r–
chmod 505 -r-x—r-x
chmod 506 -r-x—rw-
chmod 507 -r-x—rwx
chmod 510 -r-x–x—
chmod 511 -r-x–x–x
chmod 512 -r-x–x-w-
chmod 513 -r-x–x-wx
chmod 514 -r-x–xr–
chmod 515 -r-x–xr-x
chmod 516 -r-x–xrw-
chmod 517 -r-x–xrwx
chmod 520 -r-x-w—-
chmod 521 -r-x-w—x
chmod 522 -r-x-w–w-
chmod 523 -r-x-w–wx
chmod 524 -r-x-w-r–
chmod 525 -r-x-w-r-x
chmod 526 -r-x-w-rw-
chmod 527 -r-x-w-rwx
chmod 530 -r-x-wx—
chmod 531 -r-x-wx–x
chmod 532 -r-x-wx-w-
chmod 533 -r-x-wx-wx
chmod 534 -r-x-wxr–
chmod 535 -r-x-wxr-x
chmod 536 -r-x-wxrw-
chmod 537 -r-x-wxrwx
chmod 540 -r-xr—–
chmod 541 -r-xr—-x
chmod 542 -r-xr—w-
chmod 543 -r-xr—wx
chmod 544 -r-xr–r–
chmod 545 -r-xr–r-x
chmod 546 -r-xr–rw-
chmod 547 -r-xr–rwx
chmod 550 -r-xr-x—
chmod 551 -r-xr-x–x
chmod 552 -r-xr-x-w-
chmod 553 -r-xr-x-wx
chmod 554 -r-xr-xr–
chmod 555 -r-xr-xr-x
chmod 556 -r-xr-xrw-
chmod 557 -r-xr-xrwx
chmod 560 -r-xrw—-
chmod 561 -r-xrw—x
chmod 562 -r-xrw–w-
chmod 563 -r-xrw–wx
chmod 564 -r-xrw-r–
chmod 565 -r-xrw-r-x
chmod 566 -r-xrw-rw-
chmod 567 -r-xrw-rwx
chmod 570 -r-xrwx—
chmod 571 -r-xrwx–x
chmod 572 -r-xrwx-w-
chmod 573 -r-xrwx-wx
chmod 574 -r-xrwxr–
chmod 575 -r-xrwxr-x
chmod 576 -r-xrwxrw-
chmod 577 -r-xrwxrwx
chmod 600 -rw——-
chmod 601 -rw——x
chmod 602 -rw—–w-
chmod 603 -rw—–wx
chmod 604 -rw—-r–
chmod 605 -rw—-r-x
chmod 606 -rw—-rw-
chmod 607 -rw—-rwx
chmod 610 -rw—x—
chmod 611 -rw—x–x
chmod 612 -rw—x-w-
chmod 613 -rw—x-wx
chmod 614 -rw—xr–
chmod 615 -rw—xr-x
chmod 616 -rw—xrw-
chmod 617 -rw—xrwx
chmod 620 -rw–w—-
chmod 621 -rw–w—x
chmod 622 -rw–w–w-
chmod 623 -rw–w–wx
chmod 624 -rw–w-r–
chmod 625 -rw–w-r-x
chmod 626 -rw–w-rw-
chmod 627 -rw–w-rwx
chmod 630 -rw–wx—
chmod 631 -rw–wx–x
chmod 632 -rw–wx-w-
chmod 633 -rw–wx-wx
chmod 634 -rw–wxr–
chmod 635 -rw–wxr-x
chmod 636 -rw–wxrw-
chmod 637 -rw–wxrwx
chmod 640 -rw-r—–
chmod 641 -rw-r—-x
chmod 642 -rw-r—w-
chmod 643 -rw-r—wx
chmod 644 -rw-r–r–
chmod 645 -rw-r–r-x
chmod 646 -rw-r–rw-
chmod 647 -rw-r–rwx
chmod 650 -rw-r-x—
chmod 651 -rw-r-x–x
chmod 652 -rw-r-x-w-
chmod 653 -rw-r-x-wx
chmod 654 -rw-r-xr–
chmod 655 -rw-r-xr-x
chmod 656 -rw-r-xrw-
chmod 657 -rw-r-xrwx
chmod 660 -rw-rw—-
chmod 661 -rw-rw—x
chmod 662 -rw-rw–w-
chmod 663 -rw-rw–wx
chmod 664 -rw-rw-r–
chmod 665 -rw-rw-r-x
chmod 666 -rw-rw-rw-
chmod 667 -rw-rw-rwx
chmod 670 -rw-rwx—
chmod 671 -rw-rwx–x
chmod 672 -rw-rwx-w-
chmod 673 -rw-rwx-wx
chmod 674 -rw-rwxr–
chmod 675 -rw-rwxr-x
chmod 676 -rw-rwxrw-
chmod 677 -rw-rwxrwx
chmod 700 -rwx——
chmod 701 -rwx—–x
chmod 702 -rwx—-w-
chmod 703 -rwx—-wx
chmod 704 -rwx—r–
chmod 705 -rwx—r-x
chmod 706 -rwx—rw-
chmod 707 -rwx—rwx
chmod 710 -rwx–x—
chmod 711 -rwx–x–x
chmod 712 -rwx–x-w-
chmod 713 -rwx–x-wx
chmod 714 -rwx–xr–
chmod 715 -rwx–xr-x
chmod 716 -rwx–xrw-
chmod 717 -rwx–xrwx
chmod 720 -rwx-w—-
chmod 721 -rwx-w—x
chmod 722 -rwx-w–w-
chmod 723 -rwx-w–wx
chmod 724 -rwx-w-r–
chmod 725 -rwx-w-r-x
chmod 726 -rwx-w-rw-
chmod 727 -rwx-w-rwx
chmod 730 -rwx-wx—
chmod 731 -rwx-wx–x
chmod 732 -rwx-wx-w-
chmod 733 -rwx-wx-wx
chmod 734 -rwx-wxr–
chmod 735 -rwx-wxr-x
chmod 736 -rwx-wxrw-
chmod 737 -rwx-wxrwx
chmod 740 -rwxr—–
chmod 741 -rwxr—-x
chmod 742 -rwxr—w-
chmod 743 -rwxr—wx
chmod 744 -rwxr–r–
chmod 745 -rwxr–r-x
chmod 746 -rwxr–rw-
chmod 747 -rwxr–rwx
chmod 750 -rwxr-x—
chmod 751 -rwxr-x–x
chmod 752 -rwxr-x-w-
chmod 753 -rwxr-x-wx
chmod 754 -rwxr-xr–
chmod 755 -rwxr-xr-x
chmod 756 -rwxr-xrw-
chmod 757 -rwxr-xrwx
chmod 760 -rwxrw—-
chmod 761 -rwxrw—x
chmod 762 -rwxrw–w-
chmod 763 -rwxrw–wx
chmod 764 -rwxrw-r–
chmod 765 -rwxrw-r-x
chmod 766 -rwxrw-rw-
chmod 767 -rwxrw-rwx
chmod 770 -rwxrwx—
chmod 771 -rwxrwx–x
chmod 772 -rwxrwx-w-
chmod 773 -rwxrwx-wx
chmod 774 -rwxrwxr–
chmod 775 -rwxrwxr-x
chmod 776 -rwxrwxrw-
chmod 777 -rwxrwxrwx
