How to compile and run C C in a Unix console Mac terminal

Question

How can I compile run C or C   in Unix console or a Mac terminal    I know it  forget it  and relearn it again  Time to write it down

User · Answer

Add following to get best warnings  you will not regret it  If you can  compile WISE  warning is error   - Wall -pedantic -Weffc   -Werror

User · Answer

All application execution in a Unix  Linux  Mac nbsp OS nbsp X  AIX  etc   environment depends on the executable search path   You can display this path in the terminal with this command      echo  PATH   On Mac OS X  by default  this will display the following colon separated search path       usr bin  bin  usr sbin  sbin  usr local bin  usr X11 bin   So any executable in the listed directories can by run just by typing in their name  For example      cat mytextfile txt   This runs  bin cat and displays mytextfile txt to the terminal   To run any other command that is not in the executable search path requires that you qualify the path to the executable  So say I had an executable called MyProgram in my home directory on Mac nbsp OS nbsp X I can fully qualify it like so       Users oliver MyProgram   If you are in a location that is near the program you wished to execute you can qualify the name with a partial path  For example  if MyProgram was in the directory  Users oliver MyProject I and I was in my home directory I can qualify the executable name like this  and have it execute      MyProject MyProgram   Or say I was in the directory  Users oliver MyProject2 and I wanted to execute  Users oliver MyProject MyProgram I can use a relative path like this  to execute it         MyProject MyProgram   Similarly if I am in the same directory as MyProgram I need to use a  current directory  relative path  The current directory you are in is the period character followed by a slash  For example        MyProgram   To determine which directory you are currently in use the pwd command   If you are commonly putting programs in a place on your hard disk that you wish to run without having to qualify their names  For example  if you have a  bin  directory in your home directory for regularly used shell scripts of other programs it may be wise to alter your executable search path   This can be does easily by either creating or editing the existing  bash profile file in your home directory and adding the lines      bin sh export PATH  PATH   bin   Here the tilde     character is being used as a shortcut for  Users oliver   Also note that the hash bang      line needs to be the first line of the file  if it doesn t already exist   Note also that this technique requires that your login shell be bash  the default on Mac nbsp OS nbsp X and most Linux distributions   Also note that if you want your programs installed in   bin to be used in preference to system executables your should reorder the export statement as follows   export PATH   bin  PATH

User · Answer

Two steps for me   first   make foo   then     foo

User · Answer

Use a makefile  Even for very small    one-file  projects  the effort is probably worth it because you can have several sets of compiler settings to test things  Debugging and deployment works much easier this way   Read the make manual  it seems quite long at first glance but most sections you can just skim over  All in all it took me a few hours and made me much more productive

User · Answer

If it is a simple single source program   make foo   where the source file is foo c or foo cpp  etc   You dont even need a makefile  Make has enough built-in rules to build your source file into an executable of the same name  minus extension   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       So to run the built executable foo     foo

User · Answer

If it is a simple single source program   make foo   where the source file is foo c or foo cpp  etc   You dont even need a makefile  Make has enough built-in rules to build your source file into an executable of the same name  minus extension   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       So to run the built executable foo     foo

User · Answer

In order to compile and run a cpp source code from Mac terminal one needs to do the following     If the path of cpp file is somePath fileName cpp  first go the directory with   path somePath To compile fileName cpp  type c   fileName cpp -o fileName To run the program  type   fileName

User · Answer

Assuming the current directory is not in the path  the syntax is    name of the program    For example   a out

User · Answer

Add following to get best warnings  you will not regret it  If you can  compile WISE  warning is error   - Wall -pedantic -Weffc   -Werror

User · Answer

In order to compile and run a cpp source code from Mac terminal one needs to do the following     If the path of cpp file is somePath fileName cpp  first go the directory with   path somePath To compile fileName cpp  type c   fileName cpp -o fileName To run the program  type   fileName

User · Answer

I found this link with directions   http   www wesg ca 2007 11 how-to-write-and-compile-c-programs-on-mac-os-x   Basically you do   gcc hello c   a out  or with the output file of the first command

User · Answer

You need to go into the folder where you have saved your file  To compile the code  gcc fileName You can also use the g   fileName This will compile your code and create a binary  Now look for the binary in the same folder and run it

User · Answer

Two steps for me   first   make foo   then     foo

User · Answer

Use a makefile  Even for very small    one-file  projects  the effort is probably worth it because you can have several sets of compiler settings to test things  Debugging and deployment works much easier this way   Read the make manual  it seems quite long at first glance but most sections you can just skim over  All in all it took me a few hours and made me much more productive

User · Answer

Add following to get best warnings  you will not regret it  If you can  compile WISE  warning is error   - Wall -pedantic -Weffc   -Werror

User · Answer

A compact way to go about doing that could be   make foo  amp  amp         Nice to have a one-liner so you can just re-run your executable again easily

User · Answer

just enter in the directory in which your c cpp file is   for compiling and running c code    gcc filename c    a out filename c   for compiling and running c   code    g   filename cpp    a out filename cpp       is default mac terminal symbol

User · Answer

For running c   files run below command  Assuming file name is  main cpp   1 Compile to make object file from c   file   g   -c main cpp -o main o   2 Since  include  lt conio h gt  does not support in MacOS so we should use its alternative which supports in Mac that is  include  lt curses h gt   Now object file needs to be converted to executable file  To use curses h we have to use library -lcurses   g   -o main main o -lcurses   3 Now run the executable     main

User · Answer

For running c   files run below command  Assuming file name is  main cpp   1 Compile to make object file from c   file   g   -c main cpp -o main o   2 Since  include  lt conio h gt  does not support in MacOS so we should use its alternative which supports in Mac that is  include  lt curses h gt   Now object file needs to be converted to executable file  To use curses h we have to use library -lcurses   g   -o main main o -lcurses   3 Now run the executable     main

User · Answer

Assuming the current directory is not in the path  the syntax is    name of the program    For example   a out

User · Answer

Running a  C file using the terminal is a two-step process  The first step is to type gcc in the terminal and drop the  C file to the terminal  and then press Enter   username  gcc  Desktop test c    In the second step  run the following command   username    a out

User · Answer

Ryan  I am changing this to be an answer instead of a comment  since it appears I was too brief   Do all of this in  Terminal    To use the G   compiler  you need to do this    Navigate to the directory in which you stored the   cpp file   cd   programs myprograms   the   is a shortcut for your home  i e   Users Ryan programs myprograms   replace with the location you actually used   Compile it  g   input cpp -o output bin  output bin can be anything with any extension  really   bin is just common on unix    There should be NOTHING returned if it was successful  and that is okay  Generally you get returns on failures   However  if you type ls  you will see the list of files in the same directory   For example you would see the other folders  input cpp and output bin From inside the directory  now execute it with   outbut bin

User · Answer

If it is a simple single source program   make foo   where the source file is foo c or foo cpp  etc   You dont even need a makefile  Make has enough built-in rules to build your source file into an executable of the same name  minus extension   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       So to run the built executable foo     foo

User · Answer

gcc main cpp -o main out     main out

User · Answer

All application execution in a Unix  Linux  Mac nbsp OS nbsp X  AIX  etc   environment depends on the executable search path   You can display this path in the terminal with this command      echo  PATH   On Mac OS X  by default  this will display the following colon separated search path       usr bin  bin  usr sbin  sbin  usr local bin  usr X11 bin   So any executable in the listed directories can by run just by typing in their name  For example      cat mytextfile txt   This runs  bin cat and displays mytextfile txt to the terminal   To run any other command that is not in the executable search path requires that you qualify the path to the executable  So say I had an executable called MyProgram in my home directory on Mac nbsp OS nbsp X I can fully qualify it like so       Users oliver MyProgram   If you are in a location that is near the program you wished to execute you can qualify the name with a partial path  For example  if MyProgram was in the directory  Users oliver MyProject I and I was in my home directory I can qualify the executable name like this  and have it execute      MyProject MyProgram   Or say I was in the directory  Users oliver MyProject2 and I wanted to execute  Users oliver MyProject MyProgram I can use a relative path like this  to execute it         MyProject MyProgram   Similarly if I am in the same directory as MyProgram I need to use a  current directory  relative path  The current directory you are in is the period character followed by a slash  For example        MyProgram   To determine which directory you are currently in use the pwd command   If you are commonly putting programs in a place on your hard disk that you wish to run without having to qualify their names  For example  if you have a  bin  directory in your home directory for regularly used shell scripts of other programs it may be wise to alter your executable search path   This can be does easily by either creating or editing the existing  bash profile file in your home directory and adding the lines      bin sh export PATH  PATH   bin   Here the tilde     character is being used as a shortcut for  Users oliver   Also note that the hash bang      line needs to be the first line of the file  if it doesn t already exist   Note also that this technique requires that your login shell be bash  the default on Mac nbsp OS nbsp X and most Linux distributions   Also note that if you want your programs installed in   bin to be used in preference to system executables your should reorder the export statement as follows   export PATH   bin  PATH

User · Answer

Ryan  I am changing this to be an answer instead of a comment  since it appears I was too brief   Do all of this in  Terminal    To use the G   compiler  you need to do this    Navigate to the directory in which you stored the   cpp file   cd   programs myprograms   the   is a shortcut for your home  i e   Users Ryan programs myprograms   replace with the location you actually used   Compile it  g   input cpp -o output bin  output bin can be anything with any extension  really   bin is just common on unix    There should be NOTHING returned if it was successful  and that is okay  Generally you get returns on failures   However  if you type ls  you will see the list of files in the same directory   For example you would see the other folders  input cpp and output bin From inside the directory  now execute it with   outbut bin

User · Answer

This is the command that works on all Unix machines    I use it on Linux Ubuntu  but it works in OS nbsp X as well  Type the following command in Terminal app     g   -o lab21 iterative cpp   -o is the letter O not zero  lab21 will be your executable file  iterative cpp is your c   file  After you run that command type the following in terminal to run your program       lab21

User · Answer

Use a makefile  Even for very small    one-file  projects  the effort is probably worth it because you can have several sets of compiler settings to test things  Debugging and deployment works much easier this way   Read the make manual  it seems quite long at first glance but most sections you can just skim over  All in all it took me a few hours and made me much more productive

User · Answer

Running a  C file using the terminal is a two-step process  The first step is to type gcc in the terminal and drop the  C file to the terminal  and then press Enter   username  gcc  Desktop test c    In the second step  run the following command   username    a out

User · Answer

gcc main cpp -o main out     main out

User · Answer

Assuming the current directory is not in the path  the syntax is    name of the program    For example   a out

User · Answer

All application execution in a Unix  Linux  Mac nbsp OS nbsp X  AIX  etc   environment depends on the executable search path   You can display this path in the terminal with this command      echo  PATH   On Mac OS X  by default  this will display the following colon separated search path       usr bin  bin  usr sbin  sbin  usr local bin  usr X11 bin   So any executable in the listed directories can by run just by typing in their name  For example      cat mytextfile txt   This runs  bin cat and displays mytextfile txt to the terminal   To run any other command that is not in the executable search path requires that you qualify the path to the executable  So say I had an executable called MyProgram in my home directory on Mac nbsp OS nbsp X I can fully qualify it like so       Users oliver MyProgram   If you are in a location that is near the program you wished to execute you can qualify the name with a partial path  For example  if MyProgram was in the directory  Users oliver MyProject I and I was in my home directory I can qualify the executable name like this  and have it execute      MyProject MyProgram   Or say I was in the directory  Users oliver MyProject2 and I wanted to execute  Users oliver MyProject MyProgram I can use a relative path like this  to execute it         MyProject MyProgram   Similarly if I am in the same directory as MyProgram I need to use a  current directory  relative path  The current directory you are in is the period character followed by a slash  For example        MyProgram   To determine which directory you are currently in use the pwd command   If you are commonly putting programs in a place on your hard disk that you wish to run without having to qualify their names  For example  if you have a  bin  directory in your home directory for regularly used shell scripts of other programs it may be wise to alter your executable search path   This can be does easily by either creating or editing the existing  bash profile file in your home directory and adding the lines      bin sh export PATH  PATH   bin   Here the tilde     character is being used as a shortcut for  Users oliver   Also note that the hash bang      line needs to be the first line of the file  if it doesn t already exist   Note also that this technique requires that your login shell be bash  the default on Mac nbsp OS nbsp X and most Linux distributions   Also note that if you want your programs installed in   bin to be used in preference to system executables your should reorder the export statement as follows   export PATH   bin  PATH

User · Answer

just enter in the directory in which your c cpp file is   for compiling and running c code    gcc filename c    a out filename c   for compiling and running c   code    g   filename cpp    a out filename cpp       is default mac terminal symbol

User · Answer

Assuming the current directory is not in the path  the syntax is    name of the program    For example   a out

User · Answer

gcc main cpp -o main out     main out

User · Answer

This is the command that works on all Unix machines    I use it on Linux Ubuntu  but it works in OS nbsp X as well  Type the following command in Terminal app     g   -o lab21 iterative cpp   -o is the letter O not zero  lab21 will be your executable file  iterative cpp is your c   file  After you run that command type the following in terminal to run your program       lab21

User · Answer

You need to go into the folder where you have saved your file  To compile the code  gcc fileName You can also use the g   fileName This will compile your code and create a binary  Now look for the binary in the same folder and run it

User · Answer

All application execution in a Unix  Linux  Mac nbsp OS nbsp X  AIX  etc   environment depends on the executable search path   You can display this path in the terminal with this command      echo  PATH   On Mac OS X  by default  this will display the following colon separated search path       usr bin  bin  usr sbin  sbin  usr local bin  usr X11 bin   So any executable in the listed directories can by run just by typing in their name  For example      cat mytextfile txt   This runs  bin cat and displays mytextfile txt to the terminal   To run any other command that is not in the executable search path requires that you qualify the path to the executable  So say I had an executable called MyProgram in my home directory on Mac nbsp OS nbsp X I can fully qualify it like so       Users oliver MyProgram   If you are in a location that is near the program you wished to execute you can qualify the name with a partial path  For example  if MyProgram was in the directory  Users oliver MyProject I and I was in my home directory I can qualify the executable name like this  and have it execute      MyProject MyProgram   Or say I was in the directory  Users oliver MyProject2 and I wanted to execute  Users oliver MyProject MyProgram I can use a relative path like this  to execute it         MyProject MyProgram   Similarly if I am in the same directory as MyProgram I need to use a  current directory  relative path  The current directory you are in is the period character followed by a slash  For example        MyProgram   To determine which directory you are currently in use the pwd command   If you are commonly putting programs in a place on your hard disk that you wish to run without having to qualify their names  For example  if you have a  bin  directory in your home directory for regularly used shell scripts of other programs it may be wise to alter your executable search path   This can be does easily by either creating or editing the existing  bash profile file in your home directory and adding the lines      bin sh export PATH  PATH   bin   Here the tilde     character is being used as a shortcut for  Users oliver   Also note that the hash bang      line needs to be the first line of the file  if it doesn t already exist   Note also that this technique requires that your login shell be bash  the default on Mac nbsp OS nbsp X and most Linux distributions   Also note that if you want your programs installed in   bin to be used in preference to system executables your should reorder the export statement as follows   export PATH   bin  PATH

User · Answer

To compile C or C   programs  there is a common command    make filename   filename   make will build your source file into an executable file with the same name  But if you want to use the standard way  You could use the gcc compiler to build C programs  amp  g   for c    For C   gcc filename c    a out   For C     g   filename cpp    a out

User · Answer

To compile C or C   programs  there is a common command    make filename   filename   make will build your source file into an executable file with the same name  But if you want to use the standard way  You could use the gcc compiler to build C programs  amp  g   for c    For C   gcc filename c    a out   For C     g   filename cpp    a out

User · Answer

I found this link with directions   http   www wesg ca 2007 11 how-to-write-and-compile-c-programs-on-mac-os-x   Basically you do   gcc hello c   a out  or with the output file of the first command

User · Answer

A compact way to go about doing that could be   make foo  amp  amp         Nice to have a one-liner so you can just re-run your executable again easily

User · Answer

Use a makefile  Even for very small    one-file  projects  the effort is probably worth it because you can have several sets of compiler settings to test things  Debugging and deployment works much easier this way   Read the make manual  it seems quite long at first glance but most sections you can just skim over  All in all it took me a few hours and made me much more productive

User · Answer

If it is a simple single source program   make foo   where the source file is foo c or foo cpp  etc   You dont even need a makefile  Make has enough built-in rules to build your source file into an executable of the same name  minus extension   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       So to run the built executable foo     foo

User · Answer

gcc main cpp -o main out     main out

User · Answer

Add following to get best warnings  you will not regret it  If you can  compile WISE  warning is error   - Wall -pedantic -Weffc   -Werror

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