206 lines
4.4 KiB
Plaintext
Executable file
206 lines
4.4 KiB
Plaintext
Executable file
.TH MOTHRA 1
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.SH NAME
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mothra \- retrieve and display World-Wide Web files
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.SH SYNOPSIS
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.B mothra
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[
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.B -dvak
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]
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[
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.B -m
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.I mtpt
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] [
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.I url
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]
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.SH DESCRIPTION
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.I Mothra
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uses
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.IR webfs (4)
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to retrieve and display files from the World-Wide Web,
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by name or through hypertext links.
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Web names, called URLs, have a peculiar syntax:
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.IP
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.EX
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http://9front.org/
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https://code.9front.org/hg/plan9front/
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http://cat-v.org/
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.EE
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.PP
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The part up to the first colon gives the protocol for
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retrieving the file.
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.BR http: ,
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Hyper-Text Transfer
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Protocol, is the usual way of accessing web files.
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.PD
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.PP
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.B //
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begins the Internet address of the server where the file resides.
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The address may contain a colon and a TCP port
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number, which overrides the
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default port number for the service. Next comes a
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file name. Finally, the file name may be followed by
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.B #
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and a string giving a label within the file where the
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display should begin.
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.PP
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.I Mothra
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starts with the
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.I url
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given on the command line, defaulting to
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the environment variable
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.BR $url .
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.PP
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There are a number of options:
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.TP
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.B -a
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Alt display. Starts in alt display mode, see menu
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commands table below.
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.TP
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.B -k
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Kill images. Don't fetch/display images.
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.TP
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.B -m
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Specify the
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.IR webfs (4)
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mountpoint with
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.BR -m
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.I mtpt.
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The default is
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.B /mnt/web.
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.TP
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.B -v
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Verbose mode. Causes HTML errors to be printed
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on file-descriptor 2.
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.TP
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.B -d
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Enables debug mode.
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.PP
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The display contains the last message from
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.I mothra,
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a box where typed commands appear,
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a scrollable list of previously visited files,
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the title and URL of the current file,
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and the scrollable text of the current file.
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.PP
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Button 1 selects and displays a file, either from the list
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of previously visited pages or from a link (indicated
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by underlined text or a boxed image) in the
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current file. Button 2 shows the URL of a file,
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but does not retrieve or display it.
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Button 3 pops up a menu of commands:
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.TF alt\ display
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.TP
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.B alt display
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Collapse or expand the navigation boxes at the top of the browser window.
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.TP
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.B moth mode
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Enter moth mode and switch to the moth cursor. If the HREF of an image
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link is different from the URL of the image itself, a link to the HREF will be
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printed on the right side of the image. Clicking an image or link with mouse
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button 1 prompts the user to save a copy of the file in the current directory.
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Clicking mouse button 2 sets the target as the current URL.
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Clicking the
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.B moth mode
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menu option again exits moth mode.
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.TP
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.B snarf
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Copy the current entry text or selected page text to snarf buffer.
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If nothing is selected, the current URL is copied.
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.TP
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.B paste
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Paste the snarf buffer to the current text entry.
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.TP
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.B plumb
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Plumb the current URL.
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.TP
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.B search
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Search for a regular expression in the current page.
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.TP
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.B save hit
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Save the current URL to the hit list.
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.TP
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.B hit list
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Retrieve and display the hit list.
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.TP
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.B exit
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Ask for confirmation and quit.
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.PD
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.PP
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The typed commands are:
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.TF typed\ commands
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.TP
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.B a
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Toggle alt display.
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.TP
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.BI d " text
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Search for the given
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.I text
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at DuckDuckGo.
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.TP
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.BI g " url
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Go to the page with the given URL.
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.TP
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.BI j " n
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Jump to page
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.I n
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from the list of previously viewed pages.
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.TP
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.BI k
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Toggle killing of images.
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.TP
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.BI m
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Enter or exit moth mode.
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.TP
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.B r
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Reload the current page.
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.TP
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.BI s " file
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Save the current page in the given
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.I file.
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.TP
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.BI W " file
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Capture a screenshot of the entire browser window in the given
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.I file.
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.TP
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.BI w " file
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Capture a screenshot of the content area in the given
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.I file.
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.TP
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.B q
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Quit.
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.PD
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.PP
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When
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.I mothra
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retrieves a direct link to a file that is not an
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HTML document (for example a GIF or JPEG
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image), it will start up an appropriate viewer, for example
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.B page
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(see
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.IR page (1))
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for most image files.
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.SH FILES
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.B $home/lib/mothra/hit.html
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the hit list
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.SH SOURCE
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.B /sys/src/cmd/mothra
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.SH "SEE ALSO"
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.IR webfs (4)
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.SH BUGS
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Files are saved in the form received,
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not in the form suggested by the name in an
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.B s
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command. A directory index saved from moth mode may be written in
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the local directory as a file named
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.B index.
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Sanitizing remote file names for the local file system is imperfect.
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.PP
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.I Mothra
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is distributed in a preliminary state; it has more than its share of bugs. Note that
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.I mothra,
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like the other Guardian Monsters, has no particular concern for humanity.
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.SH HISTORY
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.I Mothra
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first appeared in Plan 9 from Bell Labs (1995). It was later modified for inclusion in
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9front (September, 2011).
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