nsxiv/nsxiv.1

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.TH NSXIV 1 nsxiv\-VERSION
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.SH NAME
nsxiv \- Neo Simple X Image Viewer
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.SH SYNOPSIS
.B nsxiv
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.RB [ \-abcfhiopqrtvZ0 ]
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.RB [ \-A
.IR FRAMERATE ]
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.RB [ \-e
.IR WID ]
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.RB [ \-G
.IR GAMMA ]
.RB [ \-g
.IR GEOMETRY ]
.RB [ \-N
.IR NAME ]
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.RB [ \-n
.IR NUM ]
.RB [ \-S
.IR DELAY ]
.RB [ \-s
.IR MODE ]
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.RB [ \-z
.IR ZOOM ]
.IR FILE ...
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.SH DESCRIPTION
nsxiv is a simple image viewer for X.
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.P
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It has two modes of operation: image and thumbnail mode. The default is image
mode, in which only the current image is shown. In thumbnail mode a grid of
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small previews is displayed, making it easy to choose an image to open.
.P
Please note, that the fullscreen mode requires an EWMH/NetWM-compliant window
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manager.
.SH OPTIONS
.TP
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.BI "\-A " FRAMERATE
Play animations with a constant frame rate set to
.IR FRAMERATE .
.TP
.B \-a
Play animations of multi-frame images.
.TP
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.B \-b
Do not show statusbar at the bottom of the window.
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.TP
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.B \-c
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Remove all orphaned cache files from the thumbnail cache directory and exit.
.TP
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.BI "\-e " WID
Embed nsxiv's window into window whose ID is
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.IR WID .
.TP
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.B \-f
Start in fullscreen mode.
.TP
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.BI "\-G " GAMMA
Set image gamma to GAMMA (\-32..32).
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.TP
.BI "\-g " GEOMETRY
Set window position and size. See section GEOMETRY SPECIFICATIONS of X(7) for
more information on GEOMETRY argument.
.TP
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.BI "\-N " NAME
Set the resource name of nsxiv's X window to NAME.
.TP
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.BI "\-n " NUM
Start at picture number NUM.
.TP
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.B \-h
Print brief usage information to standard output and exit.
.TP
.B \-i
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Read names of files to open from standard input. Also done if FILE is `-'.
.TP
.B \-o
Write list of all marked files to standard output when quitting. In combination
with
.B \-i
nsxiv can be used as a visual filter/pipe.
.TP
.B \-p
Enable private mode, in which nsxiv does not write any cache or temporary files.
.TP
.B \-q
Be quiet, and disable warnings to standard error stream.
.TP
.B \-r
Search the given directories recursively for images to view.
.TP
.BI "\-S " DELAY
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Start in slideshow mode. Set the delay between images to
.I DELAY
seconds.
.I DELAY
may be a floating-point number.
.TP
.BI "\-s " MODE
Set scale mode according to MODE character. Supported modes are: [d]own,
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[f]it, [F]ill, [w]idth, [h]eight.
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.TP
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.B \-t
Start in thumbnail mode.
.TP
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.B \-v
Print version information to standard output and exit.
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.TP
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.B \-Z
The same as `\-z 100'.
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.TP
.BI "\-z " ZOOM
Set zoom level to ZOOM percent.
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.TP
.B \-0
Use NULL-separator. With this option, output of \-o and file-list sent to the
key-handler and the input of \-i will be separated by a NULL character.
.SH KEYBOARD COMMANDS
.SS General
The following keyboard commands are available in both image and thumbnail modes:
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.TP
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.BR 0 \- 9
Prefix the next command with a number (denoted via
.IR count ).
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.TP
.B q
Quit nsxiv.
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.TP
.B Return
Switch to thumbnail mode / open selected image in image mode.
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.TP
.B f
Toggle fullscreen mode.
.TP
.B b
Toggle visibility of statusbar at the bottom of the window.
.TP
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.B Ctrl-x
Send the next key to the external key-handler. See section EXTERNAL KEY HANDLER
for more information.
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.TP
.B g
Go to the first image.
.TP
.B G
Go to the last image, or image number
.IR count .
.TP
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.B r
Reload image.
.TP
.B D
Remove current image from file list and go to next image.
.TP
.BR Ctrl-h ", " Ctrl-Left
Scroll left one screen width.
.TP
.BR Ctrl-j ", " Ctrl-Down
Scroll down one screen height.
.TP
.BR Ctrl-k ", " Ctrl-Up
Scroll up one screen height.
.TP
.BR Ctrl-l ", " Ctrl-Right
Scroll right one screen width.
.TP
.BR +
Zoom in.
.TP
.B \-
Zoom out.
.TP
.B m
Mark/unmark the current image.
.TP
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.B M
Mark/unmark all images starting from the last marked/unmarked image up to the
current one.
.TP
.B Ctrl-m
Reverse all image marks.
.TP
.B Ctrl-u
Remove all image marks.
.TP
.B N
Go
.I count
marked images forward.
.TP
.B P
Go
.I count
marked images backward.
.TP
.B {
Decrease gamma correction by
.I count
steps.
.TP
.B }
Increase gamma correction by
.I count
steps.
.TP
.B Ctrl-g
Reset gamma correction.
.SS Thumbnail mode
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The following keyboard commands are only available in thumbnail mode:
.TP
.BR h ", " Left
Move selection left
.I count
times.
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.TP
.BR j ", " Down
Move selection down
.I count
times.
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.TP
.BR k ", " Up
Move selection up
.I count
times.
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.TP
.BR l ", " Right
Move selection right
.I count
times.
.TP
.B R
Reload all thumbnails.
.SS Image mode
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The following keyboard commands are only available in image mode:
.TP
Navigate image list:
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.TP
.BR n ", " Space
Go
.I count
images forward.
.TP
.BR p ", " Backspace
Go
.I count
images backward.
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.TP
.B [
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Go
.I count
* 10 images backward.
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.TP
.B ]
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Go
.I count
* 10 images forward.
.TP
Handle multi-frame images:
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.TP
.B Ctrl-n
Go
.I count
frames of a multi-frame image forward.
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.TP
.B Ctrl-p
Go
.I count
frames of a multi-frame image backward.
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.TP
.BR Ctrl-a ", " Ctrl-Space
Play/stop animations of multi-frame images.
.TP
Panning:
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.TP
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.BR h ", " Left
Scroll image 1/5 of window width or
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.I count
pixels left.
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.TP
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.BR j ", " Down
Scroll image 1/5 of window height or
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.I count
pixels down.
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.TP
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.BR k ", " Up
Scroll image 1/5 of window height or
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.I count
pixels up.
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.TP
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.BR l ", " Right
Scroll image 1/5 of window width or
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.I count
pixels right.
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.TP
.B H
Scroll to left image edge.
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.TP
.B J
Scroll to bottom image edge.
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.TP
.B K
Scroll to top image edge.
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.TP
.B L
Scroll to right image edge.
.TP
.B z
Scroll to image center.
.TP
Zooming:
.TP
.B =
Set zoom level to 100%, or
.IR count %.
.TP
.B w
Set zoom level to 100%, but fit large images into window.
.TP
.B W
Fit image to window.
.TP
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.B F
Fill image to window.
.TP
.B e
Fit image to window width.
.TP
.B E
Fit image to window height.
.TP
Rotation:
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.TP
.B <
Rotate image counter-clockwise by 90 degrees.
.TP
.B >
Rotate image clockwise by 90 degrees.
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.TP
.B ?
Rotate image by 180 degrees.
.TP
Flipping:
.TP
.B |
Flip image horizontally.
.TP
.B _
Flip image vertically.
.TP
Miscellaneous:
.TP
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.B a
Toggle anti-aliasing.
.TP
.B A
Toggle visibility of alpha-channel, i.e. image transparency.
.TP
.B s
Toggle slideshow mode and/or set the delay between images to
.I count
seconds.
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.SH MOUSE COMMANDS
.SS Thumbnail mode
The following mouse mappings are available in thumbnail mode:
.TP
.B Button1
Select the image. Goes into image mode if double\-clicked.
.TP
.B Button3
Mark/unmark the image. Dragging while holding down Button3 will mark/unmark
multiple images.
.TP
.B Button4
Scroll up by one row.
.TP
.B Button5
Scroll down by one row.
.TP
.B Ctrl-Button4
Scroll up by one page.
.TP
.B Ctrl-Button5
Scroll down by one page.
.SS Image mode
The following mouse mappings are available in image mode:
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.TP
.B Button1
Go to the next image if the mouse cursor is in the right part of the window or
to the previous image if it is in the left part.
.TP
.B Ctrl-Button1
Pan the image relative to the mouse cursor.
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.TP
.B Button2
Pan the image according to the mouse cursor position in the window while
keeping this button pressed down.
.TP
.B Button3
Switch to thumbnail mode.
.TP
.B Button4
Zoom in.
.TP
.B Button5
Zoom out.
.SH CONFIGURATION
The following X resources are supported:
.TP
.B window.background
Color of the window background
.TP
.B window.foreground
Color of the window foreground
.TP
.B bar.font
Name of Xft bar font
.TP
.B bar.background
Color of the bar background. Defaults to window.background
.TP
.B bar.foreground
Color of the bar foreground. Defaults to window.foreground
.TP
.B mark.foreground
Color of the mark foreground. Defaults to window.foreground
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.TP
Please see xrdb(1) on how to change them.
.SH WINDOW TITLE
The window title can be replaced with the output of a user-provided script,
which is called by nsxiv whenever there's a redraw. The path of this script is
.I $XDG_CONFIG_HOME/nsxiv/exec/win-title
and the arguments given to it (where "Optional" arguments might be empty) are:
.IP $1 4
resolved absolute path of the current file
.IP $2 4
current file number
.IP $3 4
total file count
.IP $4 4
image width (Optional: Disabled on thumbnails mode)
.IP $5 4
image height (Optional: Disabled on thumbnails mode)
.IP $6 4
current zoom (Optional: Disabled on thumbnails mode)
.P
The term file is used rather than image as nsxiv does not precheck that the
input files are valid images. Total file count may be different from the actual
count of valid images.
.P
There is also an example script installed together with nsxiv as
.IR EGPREFIX/win-title .
.SH STATUS BAR
The information displayed on the left side of the status bar can be replaced
with the output of a user-provided script, which is called by nsxiv whenever an
image gets loaded. The path of this script is
.I $XDG_CONFIG_HOME/nsxiv/exec/image-info
and the arguments given to it are:
.IP $1 4
path to image file
.IP $2 4
image width
.IP $3 4
image height
.P
There is also an example script installed together with nsxiv as
.IR EGPREFIX/image-info .
.SH EXTERNAL KEY HANDLER
Additional external keyboard commands can be defined using a handler program
located in
.IR $XDG_CONFIG_HOME/nsxiv/exec/key-handler .
The handler is invoked by pressing
.BR Ctrl-x .
The next key combo is passed as its first argument. Passed via stdin are the
images to act upon: all marked images, if in thumbnail mode and at least one
image has been marked, otherwise the current image. nsxiv(1) will block until
the handler terminates. It then checks which images have been modified and
reloads them.
By default nsxiv(1) will send one image per-line to stdin, however when using
\-0 the image list will be NULL separated and the environment variable
"$NSXIV_USING_NULL" will be set to 1.
The key combo argument has the following form: "[C-][M-][S-]KEY",
where C/M/S indicate Ctrl/Meta(Alt)/Shift modifier states and KEY is the X
keysym as listed in /usr/include/X11/keysymdef.h without the "XK_" prefix.
If KEY has an uppercase equivalent, S-KEY is resolved into it. For instance,
K replaces S-k and Scedilla replaces S-scedilla, but S-Delete is sent as-is.
There is also an example script installed together with nsxiv as
.IR EGPREFIX/key-handler .
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.SH THUMBNAIL CACHING
nsxiv stores all thumbnails under
.IR $XDG_CACHE_HOME/nsxiv/ .
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.P
Use the command line option
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.I \-c
to remove all orphaned cache files. Additionally, run the following command
afterwards inside the cache directory to remove empty subdirectories:
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.P
.RS
find . \-depth \-type d \-empty ! \-name '.' \-exec rmdir {} \\;
.RE
.SH ORIGINAL AUTHOR
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.EX
Bert Muennich <ber.t at posteo.de>
.EE
.SH CURRENT MAINTAINERS
.EX
N-R-K <nrk at disroot.org>
Berke Kocaoğlu <berke.kocaoglu at metu.edu.tr>
TAAPArthur <taaparthur at gmail.com>
eylles <ed.ylles1997 at gmail.com>
mamg22 <marcomonizg at gmail.com>
LuXu
explosion-mental <explosion0mental at gmail.com>
Guilherme Freire
Stein Gunnar Bakkeby <bakkeby at gmail.com>
Anupam Ashish Minz
Sam Whitehead
Kian Kasad <kian at kasad.com>
qsmodo
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.EE
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.SH CONTRIBUTORS
.EX
Bastien Dejean <nihilhill at gmail.com>
Dave Reisner <d at falconindy.com>
Fung SzeTat <sthorde at gmail.com>
Max Voit <mvdev at with-eyes.net>
For additional contributors, run `git shortlog -s` in the nsxiv repository.
.EE
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.SH HOMEPAGE
.TP
Website:
.EE
https://nsxiv.github.io/nsxiv/
.EX
.TP
Source code:
.EE
https://github.com/nsxiv/nsxiv
.EX
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.SH SEE ALSO
.BR X (7),
.BR xrdb (1)