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ramky79 08-02-2007 03:15 PM

return code of a unix command
 
How to find out whether the command I executed is successful or unsuccessful(at commandlinet)

Eg:
say i execute the following command at command line
rm *
How do i find out whether my previous command is a success or failure.

Thankyou.

Best Regards,
Ram.

jim mcnamara 08-02-2007 03:34 PM

Note: rm * can be very dangerous, be careful

Code:

<some command>
echo "$?"

will display 0 if "some command" was successful. It will show 1 (or another non-zero number) if the command failed. Usually commands also display error messages when something goes wrong.


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