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1 | /***** unido:mod.std.unix / ut-sally!jsq / 8:54 pm Jul 4, 1985*/ |
2 | From: John Quarterman (moderator) <ut-sally!std-unix> | |
3 | ||
4 | Topic: yet more on getopt (command line arguments) | |
5 | ||
6 | Two more messages, the first a followup to a previous posting, and | |
7 | the second public domain sources and man pages for getopt(3) and getopt(1). | |
8 | -mod | |
9 | ||
10 | ---------------------------------------------------------------------- | |
11 | ||
12 | From: ihnp4!utzoo!henry | |
13 | Date: 3 Jul 85 18:34:41 CDT (Wed) | |
14 | To: ihnp4!ut-sally!std-unix | |
15 | Subject: Re: command line arguments | |
16 | ||
17 | > > A group of bundled options may end with an option that has an argument. | |
18 | > | |
19 | > This creates confusion in using C-Kermit when you want to send an image | |
20 | > file. For example: | |
21 | > | |
22 | > send -is filename < --- works fine | |
23 | > send -si filename < --- bombs the program | |
24 | ||
25 | The AT&T syntax standard (which getopt does not completely enforce) | |
26 | actually forbids both of these usages. Options with arguments are not | |
27 | allowed to be bundled, and they must be separated from their arguments | |
28 | by a space. | |
29 | ||
30 | > I would *much* prefer to bundle the flags, then | |
31 | > have those with arguments pick them up in the same order as the flags are | |
32 | > listed. | |
33 | ||
34 | The few existing commands that use such a convention, notably tar(1), are | |
35 | (in my experience) the worse for it. It's seriously error-prone. I think | |
36 | the AT&T people did the right thing. | |
37 | ||
38 | ------------------------------ | |
39 | ||
40 | Date: Tue, 2 Jul 85 13:07:09 edt | |
41 | From: ihnp4!utcs!ian (Ian F. Darwin) | |
42 | To: ihnp4!ut-sally!jsq@tzec.UTEXAS.ARPA | |
43 | Subject: here is getopt | |
44 | ||
45 | Here is the source for getopt(3), the function that should be in | |
46 | everybody's C program, and getopt(1), a program that uses it to | |
47 | make shell programs comprehensible and consistent. There are man | |
48 | pages for both. Please send these on to the mod. group. Thanks. | |
49 | ||
50 | [ I have hacked the following shell script slightly so that | |
51 | it doesn't extract directly into system source directories, | |
52 | rather into the current directory. It should be assumed that | |
53 | this code comes with no warranty from me, Ian Darwin, or anyone | |
54 | else as to whether it accurately represents getopt as distributed | |
55 | with System V, or any command line standard, or that it works | |
56 | at all, or that it will cause no damage when extracted or used. -mod] | |
57 |