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Download fluxbox source code from its official website. http://fluxbox.org/download/ sudo apt-get install build-essential texinfo libacl1-dev autoconf automake xorg-dev libx11-dev libimlib2-dev libxinerama-dev libxrender-dev libxft-dev libxpm-dev ./configure --prefix=/usr --enable-nls --enable-imlib2 --enable-xinerama make…

‘S’ = The directory’s setgid bit is set, but the execute bit isn’t set. ‘s’ = The directory’s setgid bit is set, and the execute bit is set. SetGID =…