linux cp, etc. to learn the source code for reference

cpfull\cp
......\cp.c
......\cp.c.cpy
......\cp.c~
......\dd\dd
......\..\dd.c
......\..\dd.c.cpy
......\..\dd.c~
......\..\test.file
......\..\test.file.cpy
......\test
......\test.c
......\test.cpy
......\test.c~
......\Who\test
......\...\test.c
......\...\who
......\...\who.c
......\...\who.c.cpy
......\...\who.c~
......\...\who.txt
......\dd
......\Who
cpfull
......\Debug
......\.....\test.obj
......\.....\test.pch
......\.....\test.pdb
......\.....\vc60.idb
......\.....\vc60.pdb
......\test.dsp
......\test.dsw
......\test.ncb
......\test.opt
......\test.plg

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