''Felis domestica'', a small animal that usually lives in house provided by its staff.


''Felis Felis sylvestris catus'', from an alternate (and detailed) phylogeny (at least you can see why ''cat''). See http://www.fmnh.helsinki.fi/users/haaramo/Metazoa/Deuterostoma/Chordata/Synapsida/Eutheria/Carnivora/Aeluroidea/Felinae.htm for more...

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''cat'', a small utility that usually lives in bin provided by root's staff. [PBO] The name is said to be an abbrev. of ''concatenate'', which is one of [cat]'s uses.
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Here's a partial reimplementation in Tcl from [Playing Bourne shell] (it does not write to stdout, but returns its results, for the caller to process further):

 proc cat files {
    set res ""
    foreach file [eval glob $files] {
	set fp [open $file]
	append res [read $fp [file size $file]]
	close $fp
    }
    set res
 } ;# RS
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See [computer-assisted translation] 
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[LV] Too often, I see script writers misuse cat. For instance, they might write:

 cat abc | program1

While there are certainly times when cat-ing into a pipeline is the right things to do, this particular, simple, use is typically better written as

  program1 < abc

or, if program1 supports it

 program1 abc



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%| [Category Humor] | [Category Application] |%
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