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From: Bart Schaefer <schaefer@brasslantern.com>
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Date: Mon, 17 Aug 2015 07:51:42 -0700
In-Reply-To: <20150817121939.GA6930@chaz.gmail.com>
Comments: In reply to Stephane Chazelas <stephane.chazelas@gmail.com>
        "Re: translate all sequences of whitespace/underscores to single dashes" (Aug 17,  1:19pm)
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Subject: Re: translate all sequences of whitespace/underscores to single dashes
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On Aug 17,  1:19pm, Stephane Chazelas wrote:
} Subject: Re: translate all sequences of whitespace/underscores to single d
}
} 2015-08-17 20:27:22 +0900, Jun T.:
} > BTW, the line
} > 	mv $f $new_name 2> /dev/null
} > in the function clean-filename() is dangerous
} 
} Note that zmv accounts for that (and also adds the missing
} "--") (and turns on extendedglob).
} 
} zmv '*' '${f//[-_[:space:]]##/-}'

Two additional points:

(1) The $f in Jun's warning has nothing to do with the the $f in 
    Stephane's example except that they coincidentally both were
    used as a variable holding a file name.

(2) That use of $f in zmv is explained in the comments in the zmv
    source file, but isn't mentioned in the man pages / info docs.