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xc
xc3sprog
xcaddy
xcalib
xcape
xcat
xcb-imdkit
xcbeautify
xcbuild
xcd
xcftools
xcfun
xchainkeys
xchm
xcircuit
xclicker
xclip
xcodes
xcolor
xconq
xcowsay
xcp
xcpc
xcrawl3r
xcruiser
xcur2png
xcwd