[SOLVED] How to get the absolute path of the running executable file and current work path ?

915086731 · 10-31-2011, 08:35 AM

Hello,
I am developing with C , how to get the absolute path of the running executable file and current work path ?
I know getcwd can obtain the current work path, but how to get the path of current running file.
And how about shell script ?

meenakshi.khurana · 10-31-2011, 11:34 AM

Calling readlink on /proc/self/exe will give you the absolute path of the running binary

Code:

readlink("/proc/self/exe", buffer, BUFSIZ);
printf("%s\n", buffer);

Sergei Steshenko · 10-31-2011, 11:46 AM

Quote:

Originally Posted by 915086731

Hello,
I am developing with C , how to get the absolute path of the running executable file and current work path ?
I know getcwd can obtain the current work path, but how to get the path of current running file.
And how about shell script ?

In http://256.com/sources/argv/argv.html look for "argv[0]". Yes, it can also be a symlink.

David the H. · 11-01-2011, 09:28 AM

Shell scripts work the same way. Just run the $0 parameter through the readlink utility.

Code:

readlink -f "$0"

For the current directory, of course, there's the pwd command and the $PWD shell variable.