Batch script - /* and */ what does it do?

Question

I have here a sample code that I use (came from another stackoverflow thread). I don't have any question on how this runs.

I am just wondering what are the /* and */ symbols for?

    @set @a=0  /*

    ::modify input file and output file
    @cscript //nologo //E:JScript "%~F0" < names.txt > output.txt

    ::modify output file and result file
    :: @move /Y output.txt names_result.csv
    type output.txt > names_result.csv

    ::end
    @goto :EOF */


WScript.Stdout.Write(WScript.StdIn.ReadAll().replace(/\t/g,","));

This is kind of an indirect answer, found in this stackoverflow thread. https://stackoverflow.com/questions/29815636/and-in-java-comments/29815698 Short-hand /* */ is used to write block (multi line) comments in javascript — Steven Zheng, Aug 18 '17 at 04:12
hi steven, yes i know this is comment on java. But this is batch scripting that I am on right now. Comments for batch is "REM" and "::". But not "/*" and */". — jaxarroyo, Aug 18 '17 at 04:13

score 2 · Accepted Answer · answered Aug 18 '17 at 04:41

2

This is a way to embed a java script in a cmd file. See also here. The trick is to make JS believe it's defining set, and after that the /* */ will gobble the cmd lines that have been used to run the script. Just read it two times, once as a cmd shell and once as the JS engine.

answered Aug 18 '17 at 04:41

yacc

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awesome! that explains it well. Thank you very much yacc! – jaxarroyo Aug 18 '17 at 05:01

Batch script - /* and */ what does it do?

1 Answers1