how do i produce an executable from a file that was created in c++?
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Hi jfeltus,
you might try
gcc file.cpp -o binaryname
to create a executable from you c++ file

You also make sure that the program has the excution bit set, "x" permision.

if not you need to, use chmod command to make it executable
chmod a+x filesname

#all users  can run filesname
man chmod to learn more details.
for c++ files I think the following would be better

g++ file.cpp

you can give output filename with the -o switch as

g++  -o test file.cpp    // where test is the executable filename

if you dont specify the -o switch the default executable output name is "a.out"
which you can execute as follows

g++ file.cpp


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