I have some C++ code that is working programmatcially but will not populate the

Question

I have some C++ code that is working programmatcially but will not populate the output file when I run it in linux through a script. I am getting the following when I Compile the script:

rm: cannot remove '*.o': No such file or directory
rm: cannot remove 'Aprog': No such file or directory
g++ -O3 -Wall -std=c++11 -c main.cc
main.cc: In function ‘int main()’:
main.cc:129:19: warning: ignoring return value of ‘int system(const char*)’, declared with attribute warn_unused_result [-Wunused-result]
    system("pause");
                   ^
g++ -O3 -Wall -std=c++11 -c ../../Utilities/scanner.cc
g++ -O3 -Wall -std=c++11 -c ../../Utilities/scanline.cc
g++ -O3 -Wall -std=c++11 -c ../../Utilities/utils.cc
g++ -O3 -Wall -std=c++11 -o Aprog main.o scanner.o scanline.o utils.o
Return from 'testdirectory' directory

COMPILING COMPLETE

Explanation / Answer

1)

rm: cannot remove '*.o': No such file or directory
rm: cannot remove 'Aprog': No such file or directory:

this error is coming because script is trying to remove all files 'Aprog' and with extension '*.o' but these files are not in directory.

2)

add : 'return 0;' at last of main function to solve : warning: ignoring return value of ‘int system(const char*)’, declared with attribute warn_unused_result [-Wunused-result]

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