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158 lines
4.3 KiB
Groff
158 lines
4.3 KiB
Groff
.Dd August 21, 2016
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.Dt NNN 1
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.Os
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.Sh NAME
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.Nm nnn
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.Nd free, fast, friendly file browser
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.Sh SYNOPSIS
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.Nm nnn
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.Op Ar -d
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.Op Ar dir
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.Sh DESCRIPTION
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.Nm
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(Noice is Not Noice) is a fork of the noice terminal file browser with improved desktop integration, file associations and navigation. It remains a simple and efficient file browser that stays out of your way.
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.Pp
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.Nm
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defaults to the current directory if
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.Ar dir
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is not specified.
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.Pp
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.Nm
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supports both vi-like and emacs-like key bindings in the default
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configuration. The default key bindings are listed below.
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.Pp
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.Bl -tag -width "l, [Right], [Return] or C-mXXXX" -offset indent -compact
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.It Ic [Up], k, ^P
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Move to previous entry
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.It Ic [Down], j, ^N
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Move to next entry
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.It Ic [PgUp], ^U
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Scroll up half a page
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.It Ic [PgDn], ^D
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Scroll down half a page
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.It Ic [Home], ^, ^A
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Move to the first entry
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.It Ic [End], $, ^E
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Move to the last entry
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.It Ic [Right], [Enter], l, ^M
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Open file or enter directory
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.It Ic [Left], [Backspace], h, ^H
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Back up one directory level
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.It Ic ~
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Change to the HOME directory
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.It Ic /, &
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Change filter (more information below)
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.It Ic c
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Change into the given directory
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.It Ic d
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Toggle detail view
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.It Ic D
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Show details of selected file
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.It Ic \&.
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Toggle hide .dot files
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.It Ic s
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Toggle sort by file size
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.It Ic t
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Toggle sort by time modified
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.It Ic \&!
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Spawn SHELL in PWD (fallback sh)
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.It Ic z
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Run the system top utility.
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.It Ic e
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Open current entry in EDITOR (fallback vi)
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.It Ic p
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Open current entry in PAGER (fallback less)
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.It Ic ^K
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Invoke file name copier
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.It Ic ^L
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Force a redraw
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.It Ic \&?
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Show help
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.It Ic q
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Quit
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.El
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.Pp
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Backing up one directory level will set the cursor position at the
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directory you came out of.
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.Pp
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.Nm
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supports the following option:
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.Pp
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.Fl d
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Open in detail view mode.
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.Sh CONFIGURATION
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.Nm
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is configured by modifying
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.Pa config.h
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and recompiling the code.
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.Pp
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Environment variable
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.Ar NNN_OPENER
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overrides all hard-coded file associations.
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.Pp
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Hard-coded associations are specified by regexes matching on the currently selected filename. If a match is found the associated program is executed with the filename passed in as the argument. If no match is found the environment variable
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.Ar NNN_FALLBACK_OPENER
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is invoked, if set.
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.Pp
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No particular utility is set as the default opener as no standalone universal opener for all mime types exists.
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.Pp
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See the examples section below for more information.
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.Sh FILTERS
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Filters support regexes to display only the matched
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entries in the current directory view. This effectively allows
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searching through the directory tree for a particular entry.
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.Pp
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Filters do not stack on top of each other. They are applied anew
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every time.
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.Pp
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To reset the filter you can input an empty filter expression.
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.Pp
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If
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.Nm
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is invoked as root the default filter will also match hidden
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files.
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.Sh ENVIRONMENT
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The SHELL, EDITOR and PAGER environment variables take precedence
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when dealing with the !, e and p commands respectively.
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.Pp
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\fBNNN_OPENER:\fR set to your desktop environment's default
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mime opener to override all custom mime associations.
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.br
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Examples: xdg-open, gnome-open, gvfs-open.
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.Pp
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\fBNNN_FALLBACK_OPENER:\fR set to your desktop environment's default
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mime opener to use as a fallback when no association is set for a file
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type. Custom associations are listed in the EXAMPLES section below.
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.Pp
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\fBNNN_COPIER:\fR set to a clipboard copier script. For example, on Linux:
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.Bd -literal
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-------------------------------------
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#!/bin/sh
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echo -n $1 | xsel --clipboard --input
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-------------------------------------
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.Sh EXAMPLES
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The following example shows one possible configuration for
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file associations which is also the default if environment
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variable NNN_OPENER is not set:
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.Bd -literal
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-----------------------------------------------
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struct assoc assocs[] = {
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{ "\\.(c|cpp|h|txt|log|sh)$", "vi" },
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{ "\\.(wma|mp3|ogg|flac)$", "mpv" },
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{ "\\.pdf$", "zathura" },
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};
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-----------------------------------------------
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Plain text files are opened with vi.
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.br
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Any other file types are opened with the 'xdg-open' command.
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.Ed
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.Sh KNOWN ISSUES
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If you are using urxvt you might have to set backspacekey to DEC.
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.Sh AUTHORS
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.An Lazaros Koromilas Aq Mt lostd@2f30.org ,
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.An Dimitris Papastamos Aq Mt sin@2f30.org ,
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.An Arun Prakash Jana Aq Mt engineerarun@gmail.com .
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.Sh HOME
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.Em https://github.com/jarun/nnn
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