Finding just the snippets in man page you care about
Project description
Don't you hate wasting time navigating through manpages with those leading pager's clunky search tools?
Ever try to find things like the "declare" built-in in the bash(1)
man page only to incrementally slodge through 34 results using the 'n' key going 'nope, nope, nope'?
Even the methods of experts struggle to fix these problems.
$ man bash
-N turn line numbering on
&declare show all the results for "declare", scan them (remember the line number for which one you want)
&[enter] turn off the filtered view
g(number) go to that line
Stop wasting time with the 1980s ways of manually stumbling through manuals and say goodbye to these problems once and for all!
Finally there's a better way!
Introducting Mansnip!
Mansnip is a revolutionary way to navigate through manpages, a tool that no terminal should be without!
With mansnip you'll just zip through documentation, saving precious time you can use to write github readmes like you're trying to sell ginsu steak knives.
Watch how mansnip shows everything with a "-z" option in the 25,888 lines of the zsh man pages.
But wait, there's more! You'll also get the line number and hierarchical context totally free!
You'll even get to install it easily through pypi.
Here's how do it pip3 install mansnip-kristopolous
.
Act now, servers are standing by.
FADE TO BLACK
END SCENE
Why hasn't this existed forever?
Man pages don't really encode a lot of semantic detail. The format is pretty old. There's been a number of attempted replacements, such as GNU info and BSD mdoc (man 7 mandoc_mdoc
) but the ones you use on your system are probably just the traditional boring old man files. Ah, inertia.
Being old, it's primarily concerned with formatting and not any kind of meta-information. And boy can it format! Try using the groffer(1)
tool and do something like groffer git-config
. You'll hopefully get a very beautiful PDF popping up on your screen, excellent for printing out and keeping in a 3-ring binder next to your Rolodex and FAX machine. Did you know groff is in a lineage that goes back to the 1964 RUNOFF program on MIT's IBM 7094 CTSS? A mere year after Licklider's Intergalactic Computer Network memo leading to what you probably call "the internet" these days.
Anyway, so inside the document source that leads to the pretty man page, there is next to no indication whether something has any special meaning. Let's go back to bash(1)
and specifically the source lines for "declare" and "typeset":
.TP
\fBdeclare\fP [\fB\-aAfFgilnrtux\fP] [\fB\-p\fP] [\fIname\fP[=\fIvalue\fP] ...]
.PD 0
.TP
\fBtypeset\fP [\fB\-aAfFgilnrtux\fP] [\fB\-p\fP] [\fIname\fP[=\fIvalue\fP] ...]
.PD
Alright, what do those things mean? You can see that in man 7 man
or actually,
$ mansnip 7 man .TP .PD .B .P .I
55 DESCRIPTION
Fonts
.B Bold
61 .I Italics
97 Normal paragraphs
.P Same as .PP (begin a new paragraph).
124 Indented paragraph macros
.TP i Begin paragraph with hanging tag. The tag is given on the next line, but its re‐
sults are like those of the .IP command.
147 Miscellaneous macros
.PD d Set inter-paragraph vertical distance to d (if omitted, d=0.4v); does not cause a
break.
Hrmm, well that's a problem. It's effectively just a stylesheet. In fact, the format doesn't look fundamentally different than it did in UNIX v0 in 1970. A mere 2 years after Engelbart demoed a prototype hypertext system, this is well before the semantic web.
"But wait," you say. "If I do man --html bash
and then wait for the glacially slow groff HTML post-processor I do indeed get links!"
Yes, the only two semantic concessions given in the modern man format is .SH
which is for sections and .TH
for the title and ... that's ... it.
"Well let's fix this!" you say!
A third time? lol, ok, have fun. Might work. For now we're stuck with these.
"So there's no surefire easy way to find these snippets then, you can only guess?"
Uh, yep.
It's not that terrible though!
Man pages are ridiculously consistent as far as non-semantically structured text goes. This tool usually works fine and if it doesn't, file a bug and go hunting and pecking like you usually do. I'll fix it eventually.
Thanks. enjoy.
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