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Just annotations of little "how to's", so I know I can find how to do something I've already done when I need to do it again, in case I don't remember anymore, which is not unlikely. Hopefully they can be useful to others, but I can't guarantee that it will work, or that it won't even make things worse.
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Random song constrained by keyword on MPC

Posted 08-12-2010 at 12:17 AM by the dsc
Updated 08-12-2010 at 12:21 AM by the dsc
Tags mpc, music

Save it as a script, perhaps even as an alias:

mpc play `shuf -e $(mpc playlist -f "[(%position%) %artist% %title% %file%]" |egrep $1 | grep -Eo "\(.*\)"| sed 's:).*::g' | sed 's:(::g') -n 1`
Then type at some terminal:

mpcr[andom] <artist/keyword>

(or however you chose to name/alias it)

And mpc will play a random song from the pool resulting from the keyword filter.

I guess the whole chain of pipes could probably be elegantly replaced by some awesome sed parameter, but that will do it as it is, anyway.
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  1. Old Comment
    Newer, improved version:

    for i in $* ; do # search term parsing loop
    a="$a grep -i $i |" # makes a chain of greps from the search terms 
    a="mpc playlist -f \"[(@(%position%)@) %artist% %title% %file%]\" | $a"    # adds a start to the grep chain - a start which is the generation of  playist with special character markings for easier later extraction of the music number
    mpc play `shuf -e $(eval $(echo $a| sed 's/.\{2\}$//') | sed 's:)@).*::g' | sed 's:(@(::g') -n 1 ` # evals the search, then extract the number via sed, plays it osd &
    Now the search parameters aren't restricted by a single word, so it can work both as a randomizer when the parameters are broad, "mpcr band X", or a quick way to get a specific song, "mpcr bandx part of the song tittle"

    " osd" is just a function of a different MPD-related script I have, would only show the selected song with aosd_cat at the bottom of the screen for a second.
    Posted 10-16-2011 at 07:42 PM by the dsc the dsc is offline
    Updated 10-16-2011 at 09:31 PM by the dsc


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