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I once generated an executable file using g++ on a linux box. But when I try to run this executable file on another linux machine, the system said "Permission denied". However, after I re-compile the source code on this second machine and run the executable file, the program just runs fine.

Can you let me know what may be the problem? Thanks.

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what are the permissions bits of the file? Try: chmod +x <file> – Yves Junqueira Mar 20 '11 at 22:16
This question really belongs on unix.se. – Ben Voigt Mar 20 '11 at 23:20
Perhaps the partition that you're trying to execute the file is mounted with the noexec flag activated? – faif Mar 21 '11 at 9:09

migrated from stackoverflow.com Mar 20 '11 at 23:42

1 Answer

up vote 9 down vote

At a guess, you copied it over with a utility that doesn't preserve file modes. Try chmod +x.

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Ten rep points says he used ftp and the default umask strips the -x bit on uploads. Not a bad precaution, come to think of it... – Shadur Mar 21 '11 at 8:02

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