I am wanting to build and run a program called dbgen using the external tools. I know that this variable holds the filename, ‍‍‍‍‍‍‍‍‍dbgen.c‍‍ :


How do I remove the .c part so I can use it here for any file name:

make dbgen

In addition, I would like to know how I can check if a makefile exists, if not, use some default flags on gcc instead, like CFLAGS=-Wall -g

Tool Window:

enter image description here

  • It is not clear where you are trying to program/achive something. Are you using a shell or are you doing something in a settings window of gedit? Or something else? What are the external tools? How is the file name and .c suffix question related to the second code block? – Lucas May 3 '15 at 22:41
  • @Lucas please see update. – sprocket12 May 3 '15 at 22:47

Remove extension:

Try to use the ${varname%.ext} expansion of sh/bash/zsh. For example like this:

# ...

(but beware that this will only remove .c extionsions and leave .h or .cpp, or any other extensions alone)

Test if file exists:

You can test if a file exists (for example a makefile) in the shell (sh/bash/zsh) with the test or [ command or the [[ builtin:

test -e some_file_name && echo exists
[ -e some_file_name ] && echo exists
[[ -e some_file_name ]] && echo exists

Be sure to check the man page for test(1), bash(1) or zshbuiltins(1).

Make file flags:

Do you mean something like this:

if [[ -e makefile ]]; then 
  make CFLAGS='-Wall -g' my_target
  make my_target

To remove the extension use something like this-

echo $GEDIT_CURRENT_DOCUMENT_NAME | sed 's/\..*$//'

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