What is the syntax when giving data to an option of a terminal program?

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wkhtmltopdf tool convert html document to pdfs. But I want to specify the left margin. What should the syntax be?

$ wkhtmltopdf --margin-left=10 ex1.html ex1.pdf
Unknown long argument --margin-left=10
shell terminal
2 Answers

Every terminal program may vary in its syntax a bit. Try

wkhtmltopdf --help

To see if there's a commands list.

Also found a manual https://wkhtmltopdf.org/usage/wkhtmltopdf.txt when searched for it. Suggests that the syntax is:

wkhtmltopdf --margin-left 10mm
Cheery_217110

All I needed was to give 1 space between the option and the value and 2 spaces for the next option

wkhtmltopdf --margin-left 10 --margin-right 10 ex1.html ex1.pdf

user_119271910
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