nnn/nnn.1

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.Dd April 13, 2017
.Dt NNN 1
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.Os
.Sh NAME
.Nm nnn
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.Nd free, fast, friendly file browser
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.Sh SYNOPSIS
.Nm nnn
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.Op Ar -d
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.Op Ar dir
.Sh DESCRIPTION
.Nm
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(Noice is Not Noice) is a fork of the noice terminal file browser with improved desktop integration, navigation, disk usage analyzer mode, comprehensive file details and much more. It remains a simple and efficient file browser that stays out of your way.
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.Pp
.Nm
defaults to the current directory if
.Ar dir
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is not specified.
.Pp
.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
.It Ic [Home], g, ^, ^A
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Move to the first entry
.It Ic [End], G, $, ^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
.It Ic -
Change to the last visited directory
.It Ic o
Open directory in desktop file manager
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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
.It Ic D
Toggle current file details screen
.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
.It Ic S
Toggle disk usage analyzer mode
.It Ic t
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Toggle sort by time modified
.It Ic \&!
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Spawn SHELL in PWD (fallback sh)
.It Ic z
Run the system top utility.
.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 \&?
Toggle help screen
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.It Ic q
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Quit
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.El
.Pp
Backing up one directory level will set the cursor position at the
directory you came out of.
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.Pp
.Nm
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supports the following options:
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.Pp
.Fl d
start in detail view mode
.Pp
.Fl S
start in disk usage analyzer mode
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.Pp
.Fl v
show version and exit
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.Sh CONFIGURATION
.Nm
is configured by modifying
.Pa config.h
and recompiling the code.
.Pp
See the environment and examples sections below for more options and 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
searching through the directory tree for a particular entry.
.Pp
Filters do not stack on top of each other. They are applied anew
every time.
.Pp
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An empty filter expression resets the filter.
.Pp
If
.Nm
is invoked as root the default filter will also match hidden
files.
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.Sh ENVIRONMENT
The SHELL, EDITOR and PAGER environment variables take precedence
when dealing with the !, e and p commands respectively.
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.Pp
\fBNNN_DE_FILE_MANAGER:\fR set to a desktop file manager to open the current
directory with.
.Pp
\fBNNN_OPENER:\fR set to your desktop environment's default
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mime opener to override all custom mime associations.
.br
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Examples: xdg-open, gio open, gvfs-open.
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.Pp
\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
type. Custom associations are listed in the EXAMPLES section below.
.Pp
\fBNNN_COPIER:\fR set to a clipboard copier script. For example, on Linux:
.Bd -literal
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-------------------------------------
#!/bin/sh
echo -n $1 | xsel --clipboard --input
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-------------------------------------
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.Sh EXAMPLES
The following example shows one possible configuration for
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file associations which is also the default if environment
variable NNN_OPENER is not set:
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.Bd -literal
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-----------------------------------------------
struct assoc assocs[] = {
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{ "\\.(c|cpp|h|txt|log|sh)$", "vi" },
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{ "\\.(wma|mp3|ogg|flac)$", "mpv" },
{ "\\.pdf$", "zathura" },
};
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-----------------------------------------------
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Plain text files are opened with vi.
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.br
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
.An Lazaros Koromilas Aq Mt lostd@2f30.org ,
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.An Dimitris Papastamos Aq Mt sin@2f30.org ,
.An Arun Prakash Jana Aq Mt engineerarun@gmail.com .
.Sh HOME
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.Em https://github.com/jarun/nnn