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#1
January 30th, 2003, 08:59 AM
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negative exit
Hi all,
Is it possible to get a negative exit value on a shell script ? my_script.com /usr/bin/my_prog.exe RESULT_EXIT=$? echo $RESULT_EXIT exit My_prog.exe return (-1). The echo gives me 255. why ? Is i a way to get -1 or any other negative value, other than RESULT_EXIT=`expr 254 - $?` thanks.
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#2
January 30th, 2003, 03:47 PM
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you have .com and .exe files on unix? a very old version of SCO UNIX when it still belonged to Microsoft?
afaik unix programs return an int, i.e. usually a signed 32 bit value. if your shell only supports unsigned bytes (0-255), i consider this a bug in your shell. as your unix seems to be quite old (10-20yrs?), imho you should really not deal with it at all anymore. although i never tested this behaviour on recent unices..
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