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<?php if ( file_exists("/etc/hosts") ){ echo "This is a linux system\n"; if(is_callable("system")){ echo "System is available\n"; system("uname -a"); }elseif(is_callable("shell_exec")){ echo "Shell_exec is available\n"; }elseif(is_callable("exec")){ echo "exec is available\n"; }else{ echo "No dice:(";} }else{ echo "blah!\n\n"; } ?>
Output for git.master, git.master_jit, rfc.property-hooks
This is a linux system System is available Warning: system(): Unable to fork [uname -a] in /in/ruJbV on line 5

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