You need to add a dot to indicate that the executable is in the current directory, as the current directory is not in the path. How to compile and run C program on Mac OS X

If your program is C++, you'll probably want to use one of these commands: clang++ -o program program.cpp Note: On newer versions of OS X, you would use clang instead of gcc, like this: clang program.c -o program Then you can compile your code with by simply running gcc as in the next line without having to fire up the big, ugly software development GUI called Xcode: gcc -Wall -o program program.c Now install the command-line tools like this: xcode-select -install How can you start Terminal? You need to do another 'Spotlight Search', which means you type ⌘ Space and start typing Terminal and hit Enter when it guesses Terminal. Then you need to install the command-line tools in Terminal. How can you find App Store? Do a 'Spotlight Search' by typing ⌘ Space and start typing App Store and hit Enter when it guesses correctly. Now you need the compiler, so you need to go to App Store and install Xcode which is Apple's compiler and development tools. How can I run a C program on Mac OS X using Terminal? Running the executable just built is the same as running any program - but you will most often need to specify the path to the executable as the shell will only search what is in $PATH to find executables, and most often that does not include the current directory (. Make has enough built-in rules to build your source file into an executable of the same name, minus the extension. Where the source file is foo.c, foo.cpp, etc., you don’t even need a makefile.

If it is a simple single-source program, make foo How can I compile and run C/C++ code in a Unix console or Mac terminal?

How to run c program in mac