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command_file_parameters [2018/11/20 18:29]
lricker summary/conclusion stmt
command_file_parameters [2019/11/12 16:02] (current)
mmacgregor
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 ===== DCL Command File Parameters ===== ===== DCL Command File Parameters =====
  
-DCL command file processing provides for as many as eight (8) com-line parameters, which are used/known as local variables named ''​P1'',​ ''​P2'',​ ''​P3'',​ ''​P4'',​ ''​P5'',​ ''​P6'',​ ''​P7''​ and ''​P8''​ within the command file itself. ​ Each of these local "​parameter-variables"​ //behaves exactly like any other programmer-created DCL local variables// within the script, __except__ for the fact that //their initial values are picked up from what the user types on the command line when invoking (running) that script//.+DCL command file processing provides for as many as eight (8) com-line parameters ​in all versions of OpenVMS (V8.4 and above actually have 16 now), which are used/known as local variables named ''​P1'',​ ''​P2'',​ ''​P3'',​ ''​P4'',​ ''​P5'',​ ''​P6'',​ ''​P7''​ and ''​P8''​ within the command file itself. ​ Each of these local "​parameter-variables"​ //behaves exactly like any other programmer-created DCL local variables// within the script, __except__ for the fact that //their initial values are picked up from what the user types on the command line when invoking (running) that script//.
  
 In the DCL examples on wiki-page [[symbol_substitution#​string_substitution_examples|DCL Symbol Substitution - String Substitution Examples]] and [[symbol_substitution#​command_file_parameters_p1_thru_p8|Command File Parameters P1 thru P8]], you can see how ''​P1''​ is used in the first ''​FANCYSHOW.COM''​ script; all 8 parameter-variables are demonstrated in the last ''​COM_FILE_PARAMETERS.COM''​ script. In the DCL examples on wiki-page [[symbol_substitution#​string_substitution_examples|DCL Symbol Substitution - String Substitution Examples]] and [[symbol_substitution#​command_file_parameters_p1_thru_p8|Command File Parameters P1 thru P8]], you can see how ''​P1''​ is used in the first ''​FANCYSHOW.COM''​ script; all 8 parameter-variables are demonstrated in the last ''​COM_FILE_PARAMETERS.COM''​ script.
command_file_parameters.1542738592.txt.gz ยท Last modified: 2018/11/20 18:29 by lricker