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mocp - Online in the Cloud

Run mocp in OnWorks free hosting provider over Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

This is the command mocp that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

PROGRAM:

NAME


MOC - Console audio player

SYNOPSIS


mocp [OPTIONS] [FILE|DIR ...]

DESCRIPTION


MOC is a console audio player with simple ncurses interface. It supports OGG, WAV, MP3
and other formats. Just run mocp, go to some directory using the menu and press enter to
start playing the file. The program will automatically play the rest of the files in the
directory.

With no options and no file arguments the program begins in current directory, or in
MusicDir if the StartInMusicDir option is set in the configuration file. If you give a
directory on the command line, MOC will try to go there. If a playlist is given, then it
is loaded. With multiple files, playlists or directories, everything will be added to the
playlist recursively (including the contents of any playlist given). (Note that relative
paths in playlists are resolved with respect to the directory of the playlist, or of the
symlink being used to reference it.)

OPTIONS


If an option can also be set in the configuration file the command line overrides it (but
see the -O option for the list-valued configuration options exception).

-D, --debug
Run MOC in debug mode. The client and server log a lot of information to debug
files. Don't use this; the server log is large. This is only available if MOC was
compiled without --disable-debug.

-S, --server
Run only the server and exit.

-F, --foreground
Implies -S. Run the server in foreground and log everything to stdout.

-R NAME[:...], --sound-driver NAME[:...]
Use the specified sound driver(s). They can be OSS, ALSA, JACK, SNDIO or null (for
debugging). Some of the drivers may not have been compiled in. This option is
called SoundDriver in the configuration file.

-m, --music-dir
Start in MusicDir (set in the configuration file). This can be also set in the
configuration file as StartInMusicDir.

-q, --enqueue
Add files given after command line options to the queue. Don't start the
interface.

-a, --append
Append files, directories (recursively) and playlists given after command line
options to the playlist. Don't start the interface.

-c, --clear
Clear the playlist.

-p, --play
Start playing from the first item on the playlist.

-f, --next
Request playing the next song from the server's playlist.

-r, --previous
Request playing the previous song from the server's playlist.

-s, --stop
Request the server to stop playing.

-x, --exit
Bring down the server.

-P, --pause
Request the server to pause playing.

-U, --unpause
Request the server to resume playing when paused.

-G, --toggle-pause
Toggle between play and pause.

-k [+|-]N, --seek [+|-]N
Seek forward (positive) or backward (negative) by N seconds in the file currently
being played.

-T THEME, --theme THEME
Use a theme file. If the path is not absolute, the file will be searched for in
/usr/share/moc/themes/ (depends on installation prefix), ~/.moc/themes/ and the
current directory.

-C FILE, --config FILE
Use the specified configuration file instead of the default. As this file can
specify commands which invoke other applications MOC will refuse to start if it is
not owned by either root or the current user, or if it is writable by anyone other
than its owner.

-O NAME[+]=VALUE, --set-option NAME[+]=VALUE
Override configuration option NAME with VALUE. This option can be repeated as many
times as needed and the option name is not case sensitive. Most option values are
set before the configuration file is processed (which allows the new values to be
picked up by substitutions); however, list-valued options are overridden afterwards
(which gives the choice of whether the configured values are replaced or added to).

See the example configuration file (config.example) for a description of the
options available.

Examples: -O AutoNext=no
-O messagelingertime=1 -O XTerms+=xxt:xwt

Note that MOC does not perform variable substitution as it does for values read
from the configuration file.

-M DIR, --moc-dir DIR
Use the specified MOC directory instead of the default. This also causes the
configuration file from that directory to be used. This can also be specified in
the configuration file using the MOCDir option.

-y, --sync
This copy of the interface will synchronize its playlist with other clients. This
option is called SyncPlaylist in the configuration file.

-n, --nosync
This copy of the interface will not synchronize its playlist with other clients
(see above).

-A, --ascii
Use ASCII characters to draw lines. (This helps on some terminals.)

-i, --info
Print the information about the file currently being played.

-Q FORMAT_STRING, --format FORMAT_STRING
Print information about the file currently being played using a format string.
Replace string sequences with the actual information:

%state State
%file File
%title Title
%artist Artist
%song SongTitle
%album Album
%tt TotalTime
%tl TimeLeft
%ts TotalSec
%ct CurrentTime
%cs CurrentSec
%b Bitrate
%r Rate

It is also possible to use variables from the FormatString configuration file
option.

-e, --recursively
Alias of -a for backward compatibility.

-h, --help
Print a list of options with short descriptions and exit.

-V, --version
Print the program version and exit.

--echo-args
Print the POPT-interpreted command line arguments and exit. (Note that this option
is not available on OpenWRT.)

-v [+|-]N, --volume [+|-]N
Adjust the mixer volume. You can set (-v 50) or adjust (-v +10, -v -10).

-t OPTION[,...], --toggle OPTION[,...]
-o OPTION[,...], --on OPTION[,...]
-u OPTION[,...], --off OPTION[,...]
Followed by a list of identifiers, these will control MOC's playlist options.
Valid identifiers are shuffle, repeat and autonext. They can be shortened to 's',
'r' and 'n' respectively.

Example: -t shuffle,r,n
would toggle shuffle, repeat and autonext all at once.

-j N{s|%}, --jump N{s|%}
Jump to some position in the current file. N is the number of seconds (when
followed by an 's') or the percent of total file time (when followed by a '%').

Examples: -j 10s, -j 50%

USING POPT ALIASES


MOC uses the POPT library to process its command line. This allows users to assign MOC
options and arguments to an alias of their choosing. The aliases are just lines in the
~/.popt text file and have the general form:

mocp alias newoption expansion

This works as if expansion textually replaces newoption on the command line. The
replacement is recursive; that is, other newoptions can be embedded in the expansion. The
expansion is parsed similarly to a shell command, which allows \, ", and ' to be used for
quoting. If a backslash is the final character on a line, the next line in the file is
assumed to be a logical continuation of the line containing the backslash, just as in the
shell. The newoption can be either a short or long option, and any syntactically valid
name the user wishes to use.

If you add a description for the new option and/or for any argument by appending the
special POPT options --POPTdesc and --POPTargs, then the option will be displayed in the
output of --help and --usage. The value for these two options are strings of the form
$"string".

So, for example:

mocp alias --single -D --set-option autonext=no \
--POPTdesc=$"Play just the file selected"

would allow the user to turn on logging (-D) and override the configuration file's
AutoNext option setting just by using --single as an option to the mocp command.

Sometimes you may wish to provide values to aliased options from the command line. If
just one aliased option has such a value, then it's a simple matter of placing it last:

mocp alias --yours --sound-driver OSS --theme

when used like this:

mocp --yours your_theme

would result in:

mocp --sound-driver OSS --theme your_theme

But aliasing multiple options with such values means making use of the special construct
!#:+ (and quoting carefully):

mocp alias -1 "-R !#:+" "-T my_theme" "-O !#:+"

when used like this:

mocp -1 OSS shuffle=yes ~/my_music

would result in:

mocp -R OSS -T my_theme -O shuffle=yes ~/my_music

There is also a ~/.popt entry which allows for the execution of a different program when
the associated option is used. For this, an exec is used in place of the alias and the
expansion is the program to be executed:

mocp exec --help /usr/bin/man 1 mocp \
POPTdesc=$"Provide the man page instead of help"

This would override the usual MOC --help output and use the system's man program to
present this man page instead.

Note that while ~/.popt (or /etc/popt) is the default POPT configuration file, you can
nominate specific file(s) to be used instead via the MOCP_POPTRC environment variable.

ENVIRONMENT VARIABLES


The following environment variables are used directly by MOC. Additional variables may be
relevant to the libraries MOC uses. Also, any environment variable may be accessed from
the configuration file.

ESCDELAY
An ncurses(3X) variable which specifies the delay (in milliseconds) after which it
will treat an ESC as a standalone key and not part of an escaped character sequence
(such as is generated by function keys). MOC sets this value to 25ms by default,
which is sufficient for most systems.

HOME Tells MOC where your home directory is located and is used for various purposes,
including the default location of the MOC directory.

MOCP_OPTS
The value of this variable will be prepended to the command line options before
they are processed.

MOCP_POPTRC
A colon-separated list of POPT configuration files which will be loaded in sequence
by MOC during initialisation. If the variable is unset then the
default POPT configuration file will be used. If the variable is set but empty
then no POPT configuration file will be loaded. If the variable is set then those
files which exist will be loaded and those which don't will be skipped.

As these files can specify commands which invoke other applications, MOC will
refuse to start if they are not owned by root or the current user, or they are
writable by anyone other than their owner.

TERM and WINDOW
Used by MOC to distinguish between X-terminals, screen(1) and console terminals.
MOC uses the configuration options XTerms and ScreenTerms to help make this
determination.

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