Still learning how to use the Linux command line and had a question. I know how to use "chmod a+x" to give a file permission to read and write before I exectute it, but I would appreciate it if somebody could give me a list or direct me to a page listing all of the uses of the chmod command and the meaning of the variables "a" and "x" and how changing those to different letters will have different effects. I'm running Mandriva Linux 2005 Limited Edition and have become a fairly avid "user", but I'm still lacking in my knowledge of the bash command line.

This is what you need,

chmod - LQ Wiki Entry

Good to see you seeking more understanding. Keep it up.

Note: This is not a bash specific command. Check the man page later, too.