How do I make a Linux or FreeBSD file an executable file?

You need to use chmod command which is use to change file access permissions as well as to setup an executable permission on file.

General syntax:
chmod +x file-name

For example to setup executable permission on a file called foo.sh (shell script):

$ chmod +x foo.sh

To execute file:

$ ./foo.sh

To setup executable permission on a binary file called bar:

$ chmod +x bar

To execute binary file:

$ ./bar

See also:

Posted by: SXI ADMIN

The author is the creator of SXI LLC and a seasoned sysadmin, DevOps engineer, and a trainer for the Linux operating system/Unix shell scripting. Get the latest tutorials on SysAdmin, Linux/Unix and open source topics via RSS/XML feed or weekly email newsletter.