Documentation can be found at http://tcllib.sourceforge.net/doc/fileutil.html
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Currently the fileutil package contains a find, grep, and cat .
Other procs that would be useful to add would include wc, tee, head, tail, and perhaps some awk'ish type functions ala [Tclx].

Perhaps even some code like [Glenn Jackman]'s:

    proc touch {filename {time ""}} {
        if {[string length $time] == 0} {set time [clock seconds]}
        file mtime $filename $time
        file atime $filename $time
    }

''glennj'':  This proc has been accepted into tcllib 1.2:
http://tcllib.sourceforge.net/doc/fileutil.html
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What other file related procs would be useful?
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[Category Package], subset [Tcllib]