$1
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$1
(programming)The first positional parameter in shell
programming and related languages. Occurrences of $1 are
replaced by the first actual argument provided by the user
when the shell script is run. $2 is replaced by the second
argument, and so on up to $9.
You may have arrived at this entry by following a URL like "http://foldoc.org?$1", which is actually a template used to generate pointers to FOLDOC definitions by replacing "$1" with the term to be defined, e.g. in a wiki interwiki map.
You may have arrived at this entry by following a URL like "http://foldoc.org?$1", which is actually a template used to generate pointers to FOLDOC definitions by replacing "$1" with the term to be defined, e.g. in a wiki interwiki map.
This article is provided by FOLDOC - Free Online Dictionary of Computing (foldoc.org)