A file that is not visible by default to
normal directory-browsing tools (on Unix, files named with a
leading dot are, by convention, not normally presented in directory
listings). Many programs define one or more dot files in which
startup or configuration information may be optionally recorded; a
user can customize the program's behavior by creating the
appropriate file in the current or home directory. (Therefore, dot
files tend to creep -- with every nontrivial application
program defining at least one, a user's home directory can be
filled with scores of dot files, of course without the user's
really being aware of it.) See also profile (sense 1), rc file
profile n.
1. A control file for a program, esp. a text
file automatically read from each user's home directory and
intended to be easily modified by the user in order to customize
the program's behavior....
c file /R-C fi:l/ n.
[Unix: from `runcom files' on
the CTSS system 1962-63 via the startup script
/etc/rc] Script file containing startup instructions for an
application program (or an entire operating system), usually a text
file containing commands of the sort that might have been invoked
manually once the system was running but are to be executed
automatically each time the system starts up....