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uray
Asked: 2010-03-27 13:36:46 +0800 CST

GCC compile result from Bash script

  • 772

hi i'am not really fluent in bash shell script, i'am doing some compilation using gcc that executed by bash script, how do I know (check) if the compilation was successful or not? any example?

scripting bash gcc g++

4 Answers

  1. Best Answer

    Since you are doing this in a script, you could alternatively check the exit code of the commands as you run with the $? variable.

    You could do something like: 

    ./configure
if [ $? -ne 0 ]
then
    echo Configure failed
    exit 1
fi

make
if [ $? -ne 0 ]
then
    echo make failed
    exit 1
fi

make install 
if [ $? -ne 0 ]
then 
   echo make install failed
   exit 1
fi 

echo All steps Succeeded

    Personally I tend to be more verbose and use longer forms in scripts because you never know who will be maintaining it in the future.

    If it was a one off command line run i would use the method that Dennis and mibus have already mentioned

    • 5

  2. gcc -o foo foo.c && echo OK

    :)

    • 2

  3. Your question stated "compilation using gcc", but I see in your comment that you're actually using configure and make. That should have been specified in your question.

    You can use the same technique that mibus showed.

    ./configure foo && make && make install && echo OK

    This will not proceed to the next step unless the previous one completed successfully and if all goes well it will print "OK".

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  4. A cautionary note is that WARNINGs which may be significant to the final binary generation are not treated as errors. So in any event, I would not totally trust the exit code as to whether your compilation/linking is correct. You still should verify the output.

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