Concise Command Language (CCL) was the term used by

Digital Equipment Corporation Digital Equipment Corporation (DEC ), using the trademark Digital, was a major American company in the computer industry from the 1960s to the 1990s. The company was co-founded by Ken Olsen and Harlan Anderson in 1957. Olsen was president unt ...

for the

Command-line interpreter A command-line interpreter or command-line processor uses a command-line interface (CLI) to receive commands from a user in the form of lines of text. This provides a means of setting parameters for the environment, invoking executables and pro ...

User interface In the industrial design field of human–computer interaction, a user interface (UI) is the space where interactions between humans and machines occur. The goal of this interaction is to allow effective operation and control of the machine f ...

supplied on several of their computing systems; its successor was named

DIGITAL Command Language DIGITAL Command Language (DCL) is the standard command language adopted by many of the operating systems created by Digital Equipment Corporation. DCL had its roots in IAS, TOPS-20, and RT-11 and was implemented as a standard across most of Digit ...

(DCL). CCL provides the user with an extensive set of terminal commands."Concise Command Language" (CCL). The first system to include CCL was DEC's

PDP-10 Digital Equipment Corporation (DEC)'s PDP-10, later marketed as the DECsystem-10, is a mainframe computer family manufactured beginning in 1966 and discontinued in 1983. 1970s models and beyond were marketed under the DECsystem-10 name, especi ...

History

The

PDP-6 The PDP-6, short for Programmed Data Processor model 6, is a computer developed by Digital Equipment Corporation (DEC) during 1963 and first delivered in the summer of 1964. It was an expansion of DEC's existing 18-bit systems to use a 36-bit da ...

monitor came with a simple set of commands. To compile and run a FORTRAN program, one would * .''R F4'' --- invoke the FORTRAN compiler * *''DTA1:PROG3=DTA2:PROG3,SUB3A,SUB3B'' --- specify binary output and source input * .''R LOADER 30'' --- invoke the loader, allocate 30K of memory * *''DTA1:PROG3'' --- specify binary object to load * *''SYS:/S'' --- let the loader find the appropriate subroutine libraries * .''SAVE DTA1:PROG3'' --- write the executable to DTA1 :::(The ''DOT'' is a monitor prompt and the ''Star/Asterisk'' is an application prompt) The PDP-10 had CCL. Key to its improvements over its predecessor were: * multi-step commands: .EX PROG3,SUB3A,SUB3B ::* would check to see if any of the 3 needed to be recompiled (and did so if necessary) ::* run the object program loader (including needed subroutine libraries) ::* start running the program * advanced command file: .EX @RUNPROG3.CMD ::* would run the command(s) in the .CMD file

Commands

The following table contains a list of CCL commands.

References

{{Reflist Command shells