A dcl command has the following syntax:
dcl [-f format] [–o output] input ... [–v]
Command-line switches and options override corresponding configuration-file settings. Switches can appear in any order, preceding the name(s) of the input file(s) to which they apply. Case is not significant, and space is allowed between a switch and its option. For example, all the following are equivalent:
-fN -Fn -f n -F N
You can specify each argument zero or more times, and each affects only the input files named after it on the command line.
§45.3.1 Command-line switch -f format
§45.3.2 Command-line switch -o output
§45.3.3 Command-line argument input ...