Mercurial > docs > unix-phil
comparison unix-phil.ms @ 46:98a1446744c7
now concrete page numbers in ref markers
author | meillo@marmaro.de |
---|---|
date | Mon, 12 Apr 2010 10:52:59 +0200 |
parents | ade392f024aa |
children | b6ae4a8ab1d3 |
comparison
equal
deleted
inserted
replaced
45:ade392f024aa | 46:98a1446744c7 |
---|---|
370 Hence, the Unix Philosophy discourages programs to demand interactive use. | 370 Hence, the Unix Philosophy discourages programs to demand interactive use. |
371 The behavior of programs should be defined at invocation. | 371 The behavior of programs should be defined at invocation. |
372 This is done by specifying arguments to the program call | 372 This is done by specifying arguments to the program call |
373 (command line switches). | 373 (command line switches). |
374 Gancarz discusses this topic as ``avoid captive user interfaces''. | 374 Gancarz discusses this topic as ``avoid captive user interfaces''. |
375 .[ | 375 .[ [ |
376 gancarz unix philosophy | 376 gancarz unix philosophy |
377 %P 88 ff. | 377 .], page 88 ff.] |
378 .] | |
379 .ds _p ", p. 88 ff. | |
380 .PP | 378 .PP |
381 Non-interactive use is, during development, also an advantage for testing. | 379 Non-interactive use is, during development, also an advantage for testing. |
382 Testing of interactive programs is much more complicated, | 380 Testing of interactive programs is much more complicated, |
383 than testing of non-interactive programs. | 381 than testing of non-interactive programs. |
384 | 382 |
590 A quickly hacked shell script might become a large, sophisticated, | 588 A quickly hacked shell script might become a large, sophisticated, |
591 compiled program this way. | 589 compiled program this way. |
592 Its lifetime begins with the initial prototype and ends when the software is not used anymore. | 590 Its lifetime begins with the initial prototype and ends when the software is not used anymore. |
593 While being alive it will get extended, rearranged, rebuilt. | 591 While being alive it will get extended, rearranged, rebuilt. |
594 Growing software matches the view that ``software is never finished. It is only released.'' | 592 Growing software matches the view that ``software is never finished. It is only released.'' |
595 .[ | 593 .[ [ |
596 gancarz | 594 gancarz |
597 unix philosophy | 595 unix philosophy |
598 %P 26 | 596 .], page 26] |
599 .] | |
600 .PP | 597 .PP |
601 Software can be seen as being controlled by evolutionary processes. | 598 Software can be seen as being controlled by evolutionary processes. |
602 Successful software is software that is used by many for a long time. | 599 Successful software is software that is used by many for a long time. |
603 This implies that the software is needed, useful, and better than alternatives. | 600 This implies that the software is needed, useful, and better than alternatives. |
604 Darwin talks about: ``The survival of the fittest.'' | 601 Darwin talks about: ``The survival of the fittest.'' |
735 .XE | 732 .XE |
736 .LP | 733 .LP |
737 Electronic mail was available in Unix very early. | 734 Electronic mail was available in Unix very early. |
738 The first \s-1MUA\s0 on Unix was \f(CWmail\fP, | 735 The first \s-1MUA\s0 on Unix was \f(CWmail\fP, |
739 which was already present in the First Edition. | 736 which was already present in the First Edition. |
740 .[ | 737 .[ [ |
741 salus | 738 salus |
742 quarter century of unix | 739 quarter century of unix |
743 %P 41 f. | 740 .], page 41 f.] |
744 .] | |
745 It was a small program that either printed the user's mailbox file | 741 It was a small program that either printed the user's mailbox file |
746 or appended text to someone elses mailbox file, | 742 or appended text to someone elses mailbox file, |
747 depending on the command line arguments. | 743 depending on the command line arguments. |
748 .[ | 744 .[ |
749 manual mail(1) | 745 manual mail(1) |
788 the requirements of modern emailing. | 784 the requirements of modern emailing. |
789 Today, nmh is developed by various people on the Internet. | 785 Today, nmh is developed by various people on the Internet. |
790 .[ | 786 .[ |
791 ware | 787 ware |
792 rand history | 788 rand history |
793 %P 128-137 | |
794 .] | 789 .] |
795 .[ | 790 .[ |
796 peek | 791 peek |
797 mh | 792 mh |
798 .] | 793 .] |
934 and | 929 and |
935 .B "do one thing well | 930 .B "do one thing well |
936 are two design goals that are directly visible in \s-1MH\s0. | 931 are two design goals that are directly visible in \s-1MH\s0. |
937 Gancarz actually presents \s-1MH\s0 in his book as example under the | 932 Gancarz actually presents \s-1MH\s0 in his book as example under the |
938 headline ``Making \s-1UNIX\s0 Do One Thing Well'': | 933 headline ``Making \s-1UNIX\s0 Do One Thing Well'': |
939 .[ | 934 .[ [ |
940 gancarz | 935 gancarz |
941 unix philosophy | 936 unix philosophy |
942 %P 125 | 937 .], page 125 ff.] |
943 .] | |
944 .QP | 938 .QP |
945 [\s-1MH\s0] consists of a series of programs which | 939 [\s-1MH\s0] consists of a series of programs which |
946 when combined give the user an enormous ability | 940 when combined give the user an enormous ability |
947 to manipulate electronic mail messages. | 941 to manipulate electronic mail messages. |
948 A complex application, it shows that not only is it | 942 A complex application, it shows that not only is it |
1090 long time ago for \s-1MH\s0. | 1084 long time ago for \s-1MH\s0. |
1091 But without following this guideline at the very beginning, | 1085 But without following this guideline at the very beginning, |
1092 Bruce Borden may have not convinced the management of \s-1RAND\s0 | 1086 Bruce Borden may have not convinced the management of \s-1RAND\s0 |
1093 to ever create \s-1MH\s0. | 1087 to ever create \s-1MH\s0. |
1094 In Bruce' own words: | 1088 In Bruce' own words: |
1095 .[ | 1089 .[ [ |
1096 ware rand history | 1090 ware rand history |
1097 %P 132 | 1091 .], page 132] |
1098 .] | |
1099 .QP | 1092 .QP |
1100 [...] but [Stockton Gaines and Norm Shapiro] were not able | 1093 [...] but [Stockton Gaines and Norm Shapiro] were not able |
1101 to convince anyone that such a system would be fast enough to be usable. | 1094 to convince anyone that such a system would be fast enough to be usable. |
1102 I proposed a very short project to prove the basic concepts, | 1095 I proposed a very short project to prove the basic concepts, |
1103 and my management agreed. | 1096 and my management agreed. |