I am on a CentOS server and I have a user called theowner, so he has his folder under /home/theowner.I have two other folders, f1 and f2, under /home/myprojects/src, and I want that these folders appears under /home/theowner.  I don't want to move the folders but link them to /home/theowner. It's for c9 workspace, and I just want to allow theowner to access those folders directly when he logs in.
Link directories in CentOS
linux;centos;symlink
As @DopeGhoti recommended in his comment, what you are wanting is a symbolic link. You can run the following commands as root or with sudo to accomplish the task:ln -s /home/myprojects/src/f1 /home/theowner/f1ln -s /home/myprojects/src/f2 /home/theowner/f2Keep in mind that the file permissions in f1 and f2 must allow theowner to read, write, and/or execute as you'd like him to be able to do.