Related:

• c file: /R-C fi:l/ [UNIX: from the startup script `/etc/rc', but this is commonly believed to have been named after older scripts to `run commands'] n.
  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....
• What does "rc" stand for, and why are there so many "rc" files?
  The letters stand for Run-Com, the name of a command file on early DEC operating systems....
• dot file: [UNIX] n. 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)....
• dot file [Unix] n. 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)....
• 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.
  Used to avoid {hardcoded} choices (see also {dot file}, {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....
• grep /grep/ vi. [from the qed/ed editor idiom g/re/p
  where re stands for a regular expression, to Globally search for the Regular Expression and Print the lines containing matches to it, via Unix grep(1)] To rapidly scan a file or set of files looking for a particular string or pattern (when browsing through a large set of files, one may speak of `grepping around')....
• daemon /day'mn/ or /dee'mn/ n. [from the mythological meaning
  later rationalized as the acronym `Disk And Execution MONitor'] A program that is not invoked explicitly, but lies dormant waiting for some condition(s) to occur....
• prowler n. [Unix] A daemon that is run periodically (typically once a week) to seek out and erase core file
  uncate administrative logfiles, nuke lost+found directories, and otherwise clean up the cruft that tends to pile up in the corners of a file system....