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That is done to align the data segment on a page boundary (which automatically forces it to be in a different page from the text segment). With that clue, you should be able find further information such as John Levine's explanation in Linkers and Loaders.


The nroff "executable" provided by groff is a shell script, e.g., #! /bin/sh # Emulate nroff with groff. # # Copyright (C) 1992, 1993, 1994, 1999, 2000, 2001, 2002, 2003, # 2004, 2005, 2007, 2009 # Free Software Foundation, Inc. # # Written by James Clark, maintained by Werner Lemberg. # This file is of `groff'. Depending on the system ...


“Cannot execute binary file” isn't about permissions, so chmod won't help you. (Oh, and never use chmod 777. It's never the solution. If you try to execute something and the error is “permission denied”, then add execute permissions: chmod a+x.) This message means that you have a binary file (not a script) that the kernel doesn't recognize as a valid ...

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