[tex-live] More on multiple minuses

Karl Berry karl at freefriends.org
Sat Sep 6 01:43:47 CEST 2008


	> tlmgr    help
	> tlmgr   -help
	> tlmgr  --help
    Is there any difference between the three forms that work, 

No.  They all execute the same function.

For tlmgr and other TL infrastructure programs, and many TeX world
programs, including tex itself, you can use either -foo or --foo; they
mean the same.

When an option works without any - is considerably more variable and I
can't think of any useful generalization to state.  (Obviously in many
cases a cmdline arg with no - is an actual parameter to the program,
like a filename, not anything like an option.)

karl


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